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Mazda Motor Corporation patents


Recent patent applications related to Mazda Motor Corporation. Mazda Motor Corporation is listed as an Agent/Assignee. Note: Mazda Motor Corporation may have other listings under different names/spellings. We're not affiliated with Mazda Motor Corporation, we're just tracking patents.

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Gas-shielded arc welding method

A gas-shielded arc welding method includes feeding a consumable electrode via a welding torch and performing welding while flowing a shielding gas. The welding torch includes a nozzle. ... Mazda Motor Corporation

Transfer device

A transfer device is provided, which includes an input shaft configured to receive a driving force generated by a drive source, an output shaft configured to output a portion of the driving force to part-time drive wheels of a vehicle, a transfer case accommodating the input and output shafts, at least two output bearings rotatably supporting the output shaft, and a constant-velocity (cv) joint connected to the output shaft and provided on a first side of the part-time drive wheels with respect to the output shaft. The output shaft is formed with a recessed opening portion opening toward the first side and receiving at least a part of the cv joint therein. ... Mazda Motor Corporation

Four-wheel drive vehicle

A four-wheel drive vehicle is disclosed, which includes an engine, a rear propeller shaft, a rear differential gear, a transfer mechanism, a front propeller shaft, and a front differential gear. The front propeller shaft is arranged so as to pass through a vicinity of an outside of a room of a pedal working space of a driver's seat and extend toward a front part of the vehicle. ... Mazda Motor Corporation

Exhaust emission control system

An exhaust emission control system is provided, which includes a nox storage catalyst provided in an exhaust passage of an engine and configured to store nox, a urea scr catalyst provided in the exhaust passage, downstream of the nox storage catalyst, and a nox reduction controlling module configured to set a nox reduction condition and, when the nox reduction condition is satisfied, performs nox reduction processing in which an air-fuel ratio of exhaust gas is set to be one of near a stoichiometric air-fuel ratio and rich, and the nox stored in the nox storage catalyst is reduced, the nox reduction condition being set looser for the nox reduction processing performed the first time after the engine is started than the nox reduction processing performed the second and subsequent times after the engine is started.. . ... Mazda Motor Corporation

Multilayer coating film and coated article

The flip-flop properties and the metallic impression are enhanced in a metallic coating. The coating includes a colored base layer formed directly or indirectly on a surface of a coating target, and a bright material-containing layer layered on the colored base layer and containing flaked bright materials and a colorant. ... Mazda Motor Corporation

Multilayer coating film and coated article

The flip-flop properties and the metallic impression are enhanced in a metallic coating. The coating includes a colored base layer formed directly or indirectly on a surface of a coating target, and a bright material-containing layer containing flaked bright materials and a colorant and layered on the colored base layer. ... Mazda Motor Corporation

Vehicular shifter device

A vehicular shifter device includes: an operation member; a body portion which supports the operation member to be shiftable from a home position in a predetermined direction, and which causes the operation member after a shift operation to automatically return to the home position; and a control means which controls the range of a transmission on the basis of a shift operation of the operation member. The control means sets the range to a neutral range when the operation member is shifted from the home position in the predetermined direction. ... Mazda Motor Corporation

Valve body for hydraulic control device, and production method therefor

Disclosed herein is a valve body (10) for a hydraulic control system. The valve body (10) has a plurality of valve insertion holes (33, 34) into which a plurality of valves are inserted, respectively, and a plurality of oil passages (69) each communicating with at least one of the valve insertion holes (33, 34). ... Mazda Motor Corporation

Information communication system for vehicle

An information communications system (100) for a vehicle includes an on-vehicle information device (10). The on-vehicle information device (10) includes: an information collection unit (11) which collects vehicle information from an on-vehicle device (41, 42, 43, 44), communication interfaces (14a, 14b) connected to mobile terminals (20) having a communication function and being brought inside the vehicle, and a control unit (12) which transfers the vehicle information collected by the information collection unit (11) to any one of the mobile terminals (20) via any one of the communication interfaces (14a, 14b). ... Mazda Motor Corporation

Valve body for hydraulic control device, and production method therefor

A valve body for a hydraulic control system includes a single valve body component (10) having a plurality of valve insertion holes (31, 33) into which a plurality of valves are inserted, respectively, and a plurality of oil passages (69) each communicating with at least one of the valve insertion holes (31, 33). All portions of the valve body component (10) except cavities including the valve insertion holes (31, 33) and the oil passages (69) are integral and continuous with one another.. ... Mazda Motor Corporation

Combustion chamber structure of engine

The present invention relates to a combustion chamber structure of an engine configured to inject fuel in a predetermined operation range in a period from a second half of a compression stroke until a first half of an expansion stroke to perform ignition after a compression top dead center. The combustion chamber structure includes: a piston including a cavity; a fuel injection valve provided at a middle portion of the piston; and a spark plug provided at a radially outer side of the middle portion of the piston and an upper side of the cavity. ... Mazda Motor Corporation

Skin resistance measuring device

Provided herein is a skin resistance measuring device having a simple structure and capable of accurately measuring a skin resistance. An ac voltage generated by a high-frequency power source (21) is applied to a first electrode (11). ... Mazda Motor Corporation

Coating of inner plate part of vehicle

A coating of an outer plate contains a perylene-based pigment, and satisfies (roh(p)/roh(oa))≥74, where roh(p) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and roh(oa) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of pwc, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.. ... Mazda Motor Corporation

Variable valve train for engine

A variable valve train for an engine is provided that includes a plurality of electric variable valve mechanisms, a single drive circuit used to drive at least two of the plurality of electric variable valve mechanisms, and a controller provided separately from the drive circuit and configured to control the drive circuit. The drive circuit is integrated with at least one of the at least two electric variable valve mechanisms.. ... Mazda Motor Corporation

04/05/18 / #20180094133

Interior/exterior automotive trim component

Disclosed herein is an interior/exterior automotive trim component made of a thermoplastic resin composition including components (a)-(f), wherein relative to 100 parts by mass of the component (a), the component (b) such as a particular hindered phenol based antioxidant is 0.09-0.11 parts by mass, the component (c) such as dibutyl hydroxy toluene is 0.001-0.015 parts by mass, the component (d) such as tris(2,4-di-t-butylphenyl) phosphite is 0.04-0.06 parts by mass, the component (e) such as a particular benzotriazole based light stabilizer is 0.09-0.11 parts by mass, and the component (f) such as a particular hindered amine based light stabilizer is 0.09-0.11 parts by mass. The component (a) is a polycarbonate resin composition comprised of a molten mixture of a plurality of predetermined carbonate copolymers having respectively different copolymerization ratios.. ... Mazda Motor Corporation

04/05/18 / #20180093695

Device for detecting approach distance of living body

A device for detecting an approach distance of a living body is provided. The device detects hover touch. ... Mazda Motor Corporation

03/29/18 / #20180090008

Automotive target-detection system

An automotive target-detection system includes: a sensor unit provided on a vehicle; and a central control unit connected to the sensor unit via an in-car bus. The sensor unit includes: a sensor detecting a target around the vehicle; and a sensor controller generating target information on the detected target, and transmitting it to the central control unit. ... Mazda Motor Corporation

03/29/18 / #20180090006

Automotive target-detection system

An automotive target-detection system includes: sensor units each provided on a vehicle; and a central control unit connected to the sensor units. Each of the sensor units includes: a sensor detecting a target around the vehicle; and a controller generating target information on the detected target, and transmitting it to the central control unit. ... Mazda Motor Corporation

03/29/18 / #20180086349

Vehicle control device

The vehicle control device is designed to control a vehicle equipped with an engine (10), and an automatic transmission (200) comprising a torque converter (202) with a lockup clutch (202f). The vehicle control device comprises a controller (50) configured to perform control of changing an engagement degree of the lockup clutch (202f) and to, when such a condition that the vehicle is traveling and a steering angle-related value as a parameter related to a steering angle of a steering apparatus of the vehicle increases is satisfied, reduce an output toque of the engine (10) to generate a deceleration of the vehicle to thereby execute a torque reduction control for controlling an attitude of the vehicle. ... Mazda Motor Corporation

03/22/18 / #20180080401

Fuel injection control device for direct injection engine

Disclosed herein is a fuel injection control device for a direct injection engine including an engine body (engine 1) and a fuel injection control unit (engine controller 100). The fuel injection control unit injects a fuel in a predetermined injection mode into a combustion chamber (17) such that while the engine body is warm, an air-fuel mixture layer and a heat-insulating gas layer, surrounding the air-fuel mixture layer, are formed in the combustion chamber at a point in time when an air-fuel mixture ignites, and changes the injection mode of the fuel into the combustion chamber such that while the engine body is cold, the lower the temperature of the engine body is, the thinner the heat-insulating gas layer becomes.. ... Mazda Motor Corporation

03/22/18 / #20180080362

Exhaust gas purifier for engine

An exhaust pipe of an engine includes a crank-shaped pipe portion having a first bend and a second bend which guide exhaust gas to a mixer, and a straight pipe portion which is continuous with the second bend. The mixer is arranged in the straight pipe portion. ... Mazda Motor Corporation

03/22/18 / #20180079407

Vehicle behavior control device

The vehicle behavior control device comprises: a steer-by-wire type steering apparatus (6) having a steering wheel-side mechanism and a road wheel-side mechanism which are mechanically separated from each other; and a controller (8) performs a driving force reduction control of reducing a driving force for a vehicle (1) when a steering speed in the steering apparatus (6) becomes equal to or greater than a given threshold. The steering apparatus (6) comprises a first steering angle sensor (14) provided in the steering wheel-side mechanism and a second steering angle sensor (19) provided in the road wheel-side mechanism. ... Mazda Motor Corporation

03/22/18 / #20180079406

Vehicle behavior control device

The vehicle behavior control device comprises: a steer-by-wire type steering apparatus (6) having a steering wheel-side mechanism and a road wheel-side mechanism which are mechanically separated from each other; and a controller (8) performs a driving force reduction control when a steering speed in the steering apparatus (6) becomes equal to or greater than a given threshold. The steering apparatus (6) comprises a first steering angle sensor (14) provided in the steering wheel-side mechanism and a second steering angle sensor (19) provided in the road wheel-side mechanism. ... Mazda Motor Corporation

03/15/18 / #20180076972

Communication system

Plural types of data having different additional information is transmitted and received without standardizing the communication format. A communication system includes a plurality of controllers capable of transmitting and receiving plural types of data which requires different additional information. ... Mazda Motor Corporation

03/15/18 / #20180073454

Vehicle control device

A control device of a vehicle is provided. The vehicle includes a drive source, wheels, a driving force transmission shaft provided in a driving force transmission path extending from the drive source to the wheels, and an accelerator position sensor for detecting a depression amount of an accelerator pedal. ... Mazda Motor Corporation

03/15/18 / #20180072347

Frame structure for vehicle

There are provided an outer panel, an inner panel, a second reinforcement provided in the main closed-cross section and cooperates with the outer panel to form a sub closed-cross section extending longitudinally, a bead portion formed at a portion of the inner panel which is located at a position corresponding to the second reinforcement, and configured to be a starting point causing bending of a front side frame toward the second reinforcement when a collision load is applied in a vehicle collision, and a second attaching member provided at a position located on a front-end side of the front side frame relatively to the second reinforcement and configured to make the second reinforcement crushable in a bending direction in the vehicle collision. The second attaching member comprises a knot-shaped member provided inside the main closed-cross section.. ... Mazda Motor Corporation

03/15/18 / #20180072317

Vehicle control device

A vehicle control device includes a drive source for generating torque as driving force that causes a vehicle to travel, a drive source control mechanism for controlling the torque generation by the drive source, a driving force transmission mechanism for transmitting the torque to vehicle wheels, an engageable element provided in the transmission mechanism, and a processor configured to execute an engagement state change control in which an engagement state of the engageable element is changed, a vehicle attitude controlling module for controlling attitude of the vehicle by driving the drive source control mechanism to reduce the torque so as to decelerate the vehicle, when a condition is satisfied, the condition being that the vehicle is traveling and a steering angle related value increases, and an engagement state change restricting module for restricting the execution of the engagement state change control while the vehicle attitude control is executed.. . ... Mazda Motor Corporation

03/08/18 / #20180066755

Control device of automatic transmission which executes shift-by-wire control

A shift position determination portion determines that operation of shifting a shift position from other range than a parking range to the parking range is conducted. A parking lock command portion causes a piston to maintain a state of being mechanically locked at a second position when the shift position is shifted to the parking range. ... Mazda Motor Corporation

03/08/18 / #20180066625

Vehicle control device

A vehicle control device is provided, which includes an engine including an ignition plug oriented inside a combustion chamber, a component provided in or near an exhaust passage of the engine, a processor configured to execute a vehicle attitude controlling module for controlling an attitude of a vehicle by retarding an ignition timing of the ignition plug to reduce an engine torque so as to decelerate the vehicle, when a condition is satisfied, the condition being that the vehicle is traveling and a steering angle related value that is related to a steering angle of a steering device increases, and a torque reduction restricting module for restricting a reduction amount of the engine torque as at least one of an engine load and an engine speed increases during the vehicle attitude control.. . ... Mazda Motor Corporation

03/08/18 / #20180066600

Fuel injection control device for direct-injection engine

A fuel injection control unit (engine controller 100) performs a main injection (72) over a period ranging from a last stage of a compression stroke to an initial stage of an expansion stroke, and also performs a preceding injection (71), injecting a smaller amount of a fuel than the main injection, over a period ranging from an intake stroke to a first half of the compression stroke, and also determines whether or not the fuel injected by the preceding injection causes a partial oxidation reaction during a second half of the compression stroke, and on determining that the fuel causes the partial oxidation reaction, performs a middle-stage injection (73). The middle-stage injection is performed at such a timing that allows the fuel injected by the middle-stage injection to ignite spontaneously on or after the fuel injected by the main injection has spontaneously ignited and before the partial oxidation reaction occurs.. ... Mazda Motor Corporation

03/08/18 / #20180066599

Direct injection engine and control method thereof

A direct injection engine includes a fuel injection valve configured to inject fuel into a cylinder, a water injection valve configured to inject water into the cylinder, and a valve variable mechanism configured to change an operation timing of each of an intake valve and an exhaust valve. During an operation in a low load range, a negative overlap period when both of the intake valve and the exhaust valve are closed across an exhaust top dead center is formed by the valve variable mechanism, and fuel is injected from the fuel injection valve and water is injected from the water injection valve respectively during the negative overlap period. ... Mazda Motor Corporation

03/08/18 / #20180066577

Accessory support structure for vehicle engine

An accessory support structure for a vehicle engine includes a pair of accessory-side supports provided on the engine accessory, and a pair of engine-side supports provided on the engine body. The engine-side supports each have a shaft hole into which a bolt is inserted, a slot closer to the engine body than the shaft hole is, and extending substantially horizontally, and an intermediate portion interposed between the shaft hole and the slot to restrict movement of the bolt. ... Mazda Motor Corporation

03/08/18 / #20180066568

Structure for reducing amount of water splashed on vehicle engine

A transverse engine adjacent to a drive shaft includes an engine body having a crankshaft, a first pipe connected to the engine body and running such that an engine coolant flows therethrough, and an accessory drive system. The accessory drive system includes an endless outer belt wound between a crankshaft pulley and an alternator drive pulley. ... Mazda Motor Corporation

03/08/18 / #20180065671

Rear vehicle-body structure of vehicle

In a rear vehicle-body structure of a vehicle provided with rear side frames, a first deformation promotion portion (recess portions) to promote inward deformation of the rear side frame is provided at each of both-side side face portions of the rear side frame, a second deformation promotion portion (opening portions) to promote outward deformation of the rear side frame is provided at a lower face portion of the rear side frame, and the first deformation promotion portion and the second deformation promotion portion are alternately arranged in an axial direction of the rear side frame.. . ... Mazda Motor Corporation

03/08/18 / #20180065670

Rear vehicle-body structure of vehicle

A rear side frame comprises a front-side frame and a rear-side frame which is provided in back of the front-side frame and configured such that a strength thereof against compressing of an axial direction is lower than that of the front-side frame, a rear end portion of the front-side frame and a front end portion of the rear-side frame are overlapped, and another vehicle-body member is connected to an overlap portion where the rear end portion of the front-side frame and the front end portion of the rear-side frame are overlapped.. . ... Mazda Motor Corporation

03/08/18 / #20180065638

Device for controlling a vehicle

Disclosed herein is a device for controlling a vehicle. The device includes: a driving operation evaluator; a brake device controller for executing a brake hold control if a predetermined brake hold condition is met while the vehicle is stationary; and a threshold modifier. ... Mazda Motor Corporation

03/08/18 / #20180065627

Vehicle control system

Provided is a vehicle control device capable of efficiently performing vehicle control for safe driving assistance. A vehicle control device (ecu) (10) mounted in a vehicle is configured to: detect a stopped vehicle (3) located forward of the vehicle (1) in a traveling lane of the vehicle (1); set a speed distribution area (40) which defines a distribution of an allowable upper limit value of a relative speed of the vehicle (1) with respect to the stopped vehicle (3); detect a traveling state of a vehicle traveling in an adjacent lane of the vehicle (1); and, based on the traveling state of the vehicle in the adjacent lane and the speed distribution area (40) with respect to the stopped vehicle (3), execute an avoidance control of avoiding a collision with the stopped vehicle (3).. ... Mazda Motor Corporation

03/08/18 / #20180065473

Upper structure of vehicle engine

In a rear exhaust engine, an upper portion of a rear portion of a head cover is provided with a first flow redirecting member facing upward and extending rearward and downward toward an exhaust device. A shield cover extending in a width direction of a vehicle is provided behind the first flow redirecting member. ... Mazda Motor Corporation

03/01/18 / #20180058497

Connecting rod of engine

A connecting rod includes a rod having the form of a bar, a smaller end part, and a larger end part. The rod is provided with a friction generation portion at which friction is generated due to deformation of the rod.. ... Mazda Motor Corporation

03/01/18 / #20180058383

Homogeneous charge compression ignition engine

A homogeneous charge compression ignition engine includes a cylinder configured to accommodate a piston to be reciprocally movable, a fuel injection valve configured to inject fuel into the cylinder, a water injection valve configured to inject water into the cylinder, a fuel injection control module configured to inject fuel from the fuel injection valve into the cylinder at such a timing that a mixture of fuel and air is self-ignited in a latter stage of a compression stroke or in an initial stage of an expansion stroke, and a water injection control module configured to perform at least a basic water injection of injecting water from the water injection valve into the cylinder during a predetermined period, which starts concurrently with or after start of combustion by the self-ignition and which overlaps a combustion period.. . ... Mazda Motor Corporation

03/01/18 / #20180058366

Fuel injection control device for direct-injection engine

A fuel injection valve (6) is configured such that the effective opening area of an injection port (61) increases as its lift amount increases. A fuel injection control unit (an engine control unit 100) injects fuel in a lift amount changing mode wherein, when fuel is injected into a combustion chamber (17) in the terminal period of the compression stroke, the lift amount of the fuel injection valve is set to a predetermined large lift amount in the earlier period of the injection period, and in the later period of the injection period following the earlier period of the injection period, the lift amount is set to a small lift amount smaller than the large lift amount and is in a range where the fuel injection speed increases.. ... Mazda Motor Corporation

03/01/18 / #20180058365

Fuel property determining device and combustion control device for engine

A fuel property determining device for an engine is provided, which retards a fuel injection timing and determines a fuel property based on a combustion variation of the engine caused by the retarding. The device includes a first determining module for setting a retarding amount to a first setting amount at an early stage of the fuel property determination, and in a case where the variation is above a first given value when the first amount is set, suspending the retarding and determining that the fuel property is a first fuel property, and a second determining module for setting the retarding amount to a second setting amount in a case where the variation is below the first given value when the first amount is set, and determining the fuel property based on the variation caused when the second amount is set, the second amount being larger than the first amount.. ... Mazda Motor Corporation

03/01/18 / #20180058349

Fuel property determining device and combustion control device for engine

A fuel property determining device for an engine is provided, the device retarding a fuel injection timing and determining a fuel property based on a combustion variation of the engine caused by the retarding. The device includes a processor configured to control a parameter related to combustibility so as to degrade a combustion state before the fuel injection timing is retarded, the parameter being different from the fuel injection timing.. ... Mazda Motor Corporation

03/01/18 / #20180058344

Hydraulic control system for engine

A hydraulic control system for an engine having a plurality of cylinders includes: valve stop mechanisms that switch the engine from all-cylinder operation to cylinder cut-off operation; a vvt that can change the timing to open and close valves 14 during all-cylinder operation and cylinder cut-off operation; an oil pump that supplies oil to hydraulically operated devices including the valve stop mechanisms and the vvt through a hydraulic path; and a control device. The control device controls a maintaining oil pressure, which is required to maintain the operated state of the valve stop mechanisms during cylinder cut-off operation, so that the maintaining oil pressure is set to a high value in a high oil viscosity region.. ... Mazda Motor Corporation

03/01/18 / #20180056997

Vehicle control device

A vehicle control device mounted in a vehicle comprises an object detection section for detecting a connection path which is connected to a traveling road, a speed distribution area setting section for setting a speed distribution area, and an avoidance control execution section for executing avoidance control of changing the vehicle speed and/or a steering direction of the vehicle to prevent the vehicle speed from exceeding the allowable upper limit value in the speed distribution area, wherein the speed distribution area setting section is configured, upon detection of the connection path by the object detection section, to set the speed distribution area on an assumption that an object exists in a connection region between the detected connection path and the traveling road.. . ... Mazda Motor Corporation

03/01/18 / #20180056863

Driver's physical condition detection device and method

A driver's physical condition detection device for detecting a physical condition of a driver driving a vehicle includes a vehicle detector configured to detect a change in motion of the vehicle during driving, a driver detector configured to detect a change in motion of a head of the driver, and a physical condition determination portion configured to perform a determination process of determining whether or not the physical condition of the driver is deteriorated, based on the change in motion of the head of the driver with respect to the change in motion of the vehicle during driving.. . ... Mazda Motor Corporation

03/01/18 / #20180056433

Metallic member bonding device for pressing rod-shaped or cylindrical first metallic member into hole portion of annular second metallic member to bond the same and bonding method therefor

A metallic member bonding device includes a pressurizing unit, a current supply unit, and a deformation suppressing unit. The pressurizing unit pressurizes a first metallic member toward a hole portion of a second metallic member to press the first metallic member therein. ... Mazda Motor Corporation

03/01/18 / #20180055438

Driver's physical condition detection device and method

A driver's physical condition detection device for detecting a physical condition of a driver driving a vehicle, includes: a vehicle detector configured to detect a change in motion of the vehicle during driving; a driver detector configured to detect a change in motion of the driver; a calculator configured to calculate a follow-up degree of the change in motion of the driver with respect to the change in motion of the vehicle during driving; and a physical condition determination portion configured to perform a determination process of determining whether or not the physical condition of the driver is deteriorated, based on the follow-up degree.. . ... Mazda Motor Corporation

02/22/18 / #20180050743

Airflow straightening structure of automotive vehicle

An airflow straightening structure of an automotive vehicle, in which slits for traveling-air peeling off (separation) and connection portions for cover reinforcing are adjacently provided at a rear-end edge portion of a cover having a substantially-flat airflow straightening face extending in a vehicle longitudinal direction, wherein protrusions are provided to extend in a direction crossing the vehicle longitudinal direction along a cover surface of the cover which are positioned in front of the connection portions.. . ... Mazda Motor Corporation

02/15/18 / #20180044797

Repair agent and repair method for plated base, as well as plated base

Disclosed is a repair agent for a plated base including a plating layer which is disposed on a surface of a metal base and which includes a metal with a stronger tendency to ionization than metal comprising the metal base, the repair agent including a phosphoric acid compound and a phosphonic acid compound.. . ... Mazda Motor Corporation

02/08/18 / #20180038306

Direct injection engine

A fuel injection valve is caused to inject fuel in a latter half of a compression stroke in such a manner that a fuel concentration immediately before start of combustion is higher in a middle portion of a combustion chamber than in an outer peripheral portion thereof in a low load range where the engine load is lower than a predetermined set reference load. An intake valve driving device is controlled in such a manner that an intake valve closing timing in the low load range is advanced on a retard side with respect to an intake bottom dead center in a case where the engine speed is high, as compared with a case where the engine speed is low, and intake air within a cylinder is blown back toward an intake port at least in a range where the engine speed is low.. ... Mazda Motor Corporation

02/08/18 / #20180038302

Exhaust emission control system of engine

An exhaust emission control system of an engine, including an nox catalyst disposed in an exhaust passage for storing nox within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored nox when the air-fuel ratio is approximately stoichiometric or rich, is provided. The system includes an scr catalyst disposed in the exhaust passage downstream of the nox catalyst and for purifying nox within exhaust gas by causing a reaction with ammonia, a controller executing a nox reduction controlling module for executing a control in which the air-fuel ratio is controlled to a target air-fuel ratio so that the stored nox is reduced, and an ammonia adsorption amount acquiring module for acquiring an ammonia adsorption amount of the scr catalyst by detection or estimation. ... Mazda Motor Corporation

02/08/18 / #20180038301

Exhaust emission control system of engine

An exhaust emission control system of an engine including a nox catalyst disposed in an exhaust passage and for storing nox within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored nox when the air-fuel ratio is approximately stoichiometric or rich, is provided. The system includes a scr catalyst disposed downstream of the nox catalyst and for purifying nox by causing a reaction with ammonia, and a processor configured to execute a nox reduction controlling module for controlling the air-fuel ratio to a target ratio so that the stored nox is reduced. ... Mazda Motor Corporation

02/08/18 / #20180038274

Accessory mounting structure for engine

An accessory mounting structure for an engine includes an engine body, and a transmission disposed on an end of the engine body in the cylinder array direction and to which output of the engine is transmitted via a crankshaft of the engine body. When the output side of the crankshaft with respect to the transmission in the cylinder array direction is defined as a rear side, and the side of the crankshaft opposite to the rear side is defined as a front side, a fuel pump configured to feed fuel to an injector, and a starter configured to rotate the crankshaft at an engine start time are disposed on a rear end portion of an intake manifold mounting surface of the engine body. ... Mazda Motor Corporation

02/08/18 / #20180038258

Exhaust emission control system of engine

An exhaust emission control system of an engine including a nox catalyst for storing nox within exhaust gas when an air-fuel ratio thereof is lean, and reducing the nox when the air-fuel ratio is approximately stoichiometric or rich, the nox catalyst also functioning as an oxidation catalyst for oxidizing hc, is provided. The system includes a scr catalyst for purifying nox by causing a reaction with nh3, a urea injector, and a processor configured to execute a fuel injection controlling module, and a nox reduction controlling module for performing a nox reduction control to enrich the air-fuel ratio to a target ratio. ... Mazda Motor Corporation

02/08/18 / #20180038256

Exhaust emission control system of engine

An exhaust emission control system of an engine is provided including a nox catalyst for oxidizing hc and storing nox within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the nox when the air-fuel ratio is approximately stoichiometric or rich. The system includes a scr catalyst for purifying nox by causing a reaction with nh3, a urea injector, a fuel injection controlling module, and a processor configured to execute a nox reduction controlling module for performing a nox reduction control to enrich the air-fuel ratio to reach a target ratio. ... Mazda Motor Corporation

02/01/18 / #20180031831

Device controlling range of vision

An edge of, for example, a windshield which serves as range of vision is defined by front pillars, a roof, and a dashboard. A modification area is provided at a peripheral portion of the windshield. ... Mazda Motor Corporation

02/01/18 / #20180030875

Engine exhaust structure

A exhaust gas purifier includes a case having a flat transverse section including a pair of facing short sides and a pair of facing long sides, and configured to house a catalytic converter, and an inlet cone including a conical portion, and configured to connect an outlet of the turbine to an inlet of the case. The conical portion includes an inclined wall inclined from a mainstream of the exhaust gas to increase the transverse section of a path of the exhaust gas. ... Mazda Motor Corporation

02/01/18 / #20180030867

Oil supply device of engine, method of manufacturing engine, and oil supply passage structure of engine

An object of the present invention is to simplify portions of an oil supply passage which portions are formed at a cylinder block. An oil supply device according to the present invention includes a cylinder block, an oil pan, an oil pump, and an oil filter. ... Mazda Motor Corporation

02/01/18 / #20180029649

Front vehicle-body structure of vehicle

A front vehicle-body structure of a vehicle comprises a front frame, an apron reinforcement, and a suspension housing, wherein the front frame includes a frame outer and a frame inner, the frame outer and the frame inner having respective upward projection portions which are joined together to form a flange portion of the front frame, the suspension housing includes an outward-side joint portion which is joined to an outer face of the front frame and an inward-side joint portion which is joined to an outward side face, in the vehicle width direction, of the flange portion, the outward-side joint portion and the inward-side joint portion being aligned in the longitudinal direction.. . ... Mazda Motor Corporation

02/01/18 / #20180029643

Front vehicle-body structure of vehicle

A front vehicle-body structure of a vehicle comprises a front frame which extends in a longitudinal direction, an apron reinforcement which is positioned above and on an outward side, in a vehicle width direction, of the front frame and extends in the longitudinal direction, and a suspension housing which is provided to be laid between the front frame and the apron reinforcement and accommodating a suspension therein, wherein the suspension housing includes a narrow-width portion which has the narrowest width in the longitudinal direction in an upper view, and a suspension tower portion where a damper member of the suspension is attached is formed at a portion of the suspension housing which includes the narrow-width portion.. . ... Mazda Motor Corporation

02/01/18 / #20180029542

Wire harness arrangement structure of vehicle

The present invention relates to a wire harness arrangement structure of a vehicle, comprising plural component control parts to control plural electric components for governing a drive of the vehicle, a main control part to generate a command signal for providing a command to the plural component control parts, and plural main wire harnesses to transmit the command signal. The plural electric components include at least a brake, an engine, a transmission, and a steering, and the plural main wire harnesses constitute a signal transmission loop which extends from the main control part and returns to the main control part by way of the plural component control parts.. ... Mazda Motor Corporation

02/01/18 / #20180029541

Wire harness arrangement structure of vehicle

The present invention relates to a wire harness arrangement structure of a vehicle, comprising plural component control parts to control plural electric components for governing a drive of the vehicle, a main control part to generate a command signal for providing a command to the plural component control parts, and plural main wire harnesses to transmit the command signal to the plural component control parts. The plural electric components include at least a brake, an engine, a transmission, and a steering, the plural main wire harnesses comprise first signal transmission routes which extend from the main control part to the plural component control parts, respectively, and second signal transmission routes which extend from the main control part to the plural component control parts, respectively, and the command signal is transmitted to the main control part to the plural component control parts through the first and second signal transmission routes.. ... Mazda Motor Corporation

01/25/18 / #20180023427

Engine oil feeding device

An engine oil feeding device is provided, which includes a variable-displacement oil pump having an operating chamber and a control oil-pressure chamber, and for changing a capacity of the operating chamber according to a pressure of the control oil-pressure chamber to change its discharging amount, an oil supply channel communicating with the operating chamber and coupled to an oil fed part, and an oil filter. The oil supply channel includes a pump downstream oil channel connecting the operating chamber with the filter and a control oil channel branched from the pump downstream oil channel and coupled to the control oil-pressure chamber. ... Mazda Motor Corporation

01/25/18 / #20180022396

Reinforcing structure of vehicle body

There are provided a floor panel, a tunnel portion which is provided to protrude at the floor panel, a pair of right-and-left tunnel side frames, a pair of right-and-left floor frames, and a band plate which is made from carbon fiber reinforced plastic, an inward end portion which being connected to the tunnel side frame and an outward end portion of which being connected to the floor frame, wherein the band plate portion includes a first displacement following portion which is configured to be displaced, following displacement of the tunnel side frame and a second displacement following portion which is configured to be displaced, following displacement of the floor frame, and the first displacement following portion and the second displacement following portion are configured to be asymmetrical relatively to a longitudinal-directional axis.. . ... Mazda Motor Corporation

01/25/18 / #20180022389

Lower vehicle-body structure of automotive vehicle

An auxiliary device is provided in a space below a portion of a floor panel which is positioned between a floor frame and a tunnel side member which extend in a longitudinal direction, members which extend in a vehicle width direction and straddle the floor frame which is positioned on the side of the auxiliary device and a tunnel side member which is positioned on the opposite side to the auxiliary device, and a yield strength of the vehicle width direction of tunnel corresponding portions, in a width direction, of the members which correspond to a tunnel portion is set to be lower than that of auxiliary-device corresponding portions, in the width direction, of the members which correspond to the auxiliary device.. . ... Mazda Motor Corporation

01/18/18 / #20180017003

Exhaust emission control system of engine

An exhaust emission control system of an engine is provided, which includes a nox catalyst disposed in an exhaust passage for storing nox within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored nox when the air-fuel ratio is approximately stoichiometric or rich. A processor executes a nox reduction controlling module for performing, when the nox stored amount exceeds a given amount, a nox reduction control in which a fuel injector performs a post injection of fuel to continuously control the air-fuel ratio to a target ratio so that the stored nox is reduced to be below a given amount, the target air-fuel ratio being a ratio at which the stored nox is reducible, the post injection causing the injected fuel to combust inside a cylinder, the execution of the control permitted when an engine load is within a medium load range.. ... Mazda Motor Corporation

01/18/18 / #20180017002

Exhaust emission control system of engine

An exhaust emission control system of an engine is provided, which includes a nox catalyst disposed in an exhaust passage for storing nox within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored nox when the air-fuel ratio is approximately stoichiometric or rich. A processor executes a nox reduction controlling module for performing a nox reduction control in which a fuel injector performs a post injection to control the air-fuel ratio to a target ratio, and an egr controlling module for controlling an egr valve to recirculate egr gas. ... Mazda Motor Corporation

01/18/18 / #20180015958

Structure for mounting vehicle heat exchanger

Disclosed herein is a structure for mounting a heat exchanger in a vehicle. The structure includes a shroud, and a mount supporting a supported portion and allowing vertical vibrations of the supported portion with respect to each side of the shroud in a vehicle width direction. ... Mazda Motor Corporation

01/04/18 / #20180001888

Vehicle behavior control device

A vehicle behavior control device for controlling a vehicle equipped with a steering apparatus comprises: a pcm operable to acquire a steering speed in the steering apparatus, and, when the steering speed becomes equal to or greater than a given threshold (ts1) which is greater than 0, to reduce a driving force for the vehicle according to the steering speed, wherein the steering apparatus comprises a steering shaft coupled to the steering wheel and rotatable together with the steering wheel, wherein the steering shaft has a torsion bar whose torsional rigidity about a rotational axis of the steering shaft is less than a remaining portion of the steering shaft. The steering speed acquisition section is configured to acquire the steering speed of the steering apparatus at a position on the side of the front road wheels with respect to the low rigidity portion.. ... Mazda Motor Corporation

01/04/18 / #20180001857

Arrangement for mounting occupant protection device

Disclosed herein is a structure for mounting an occupant protection system in a vehicle. The structure includes an electric power steering device (1) and a knee protection air bag assembly (51). ... Mazda Motor Corporation

01/04/18 / #20180001752

Vehicle rear structure

A vehicle rear structure is applied to a vehicle, in which at least one of a roof and a rear window is capable of being accommodated in a vehicle body. The structure includes a deflection plate standing upright between a pair of seats on the rear side of the seats, and a light source provided on the lower front side of the deflection plate. ... Mazda Motor Corporation

01/04/18 / #20180001725

Rear suspension structure of automotive vehicle

In a rear suspension device of an automotive vehicle, a shock absorber is provided perpendicularly to a h-shaped lower arm in a side view, respective axis of resilient bushes of pivotal portions which pivotally support upper and lower arms at a vehicle-body side are configured to be parallel to a standard line which extends in a vehicle longitudinal direction in a plan view, and an imaginary axial line which interconnects respective centers of front and rear connection portions, via which the lower arm is connected to a wheel side, is configured to extend obliquely forward and inward relatively to the vehicle longitudinal direction.. . ... Mazda Motor Corporation

01/04/18 / #20180001723

Front suspension structure of automotive vehicle

In a double-wishbone type front suspension structure, upper and lower arms are pivotally supported at a vehicle-body side via front-and-rear pivotal portions, axial lines of resilient bushes of the front and rear pivotal portions of the arms extend in a longitudinal direction, a knuckle-side pivotal portion of the upper arm is positioned in back of a knuckle-side pivotal portion of the lower arm, and a lower end portion of a damper unit provided between a vehicle body and the lower arm is connected to the lower arm such that the damper unit is positioned perpendicularly to the axial lines of the lower arm in a side view and an upper end portion is pivotally supported at the vehicle body via a rotational axis extending in the longitudinal direction.. . ... Mazda Motor Corporation

12/28/17 / #20170370272

Engine cooling device

An engine cooling device includes a heater circulation passage including an exhaust-side channel and a heater channel, the exhaust-side channel extending through an exhaust port-side portion of a cylinder head, the heater channel extending through a heater core; an auxiliary device circulation passage including a main channel and an auxiliary device channel, the main channel extending through a portion of the cylinder head other than the exhaust port-side portion, the auxiliary device channel extending through an auxiliary device; a temperature detecting portion configured to detect a temperature of an engine; and a channel switching valve configured to perform connection between the main channel and the auxiliary device channel and connection between the heater circulation passage and the auxiliary device circulation passage depending on the detected temperature falling within one of three temperature ranges.. . ... Mazda Motor Corporation

12/21/17 / #20170363051

Supercharged engine

A supercharged engine is provided, which includes an engine body having cylinders, an intake passage disposed outside the engine body and connected to the cylinders via intake ports, a supercharger provided in the intake passage and spaced apart from an intake-side side surface of the engine body, the intake-side side surface being connected to the intake passage, and a fuel pump disposed on the intake-side side surface. A portion of the intake passage constitutes an intervening part located between the supercharger and the engine body. ... Mazda Motor Corporation

12/21/17 / #20170362986

Exhaust device of engine

An exhaust device of an engine is provided, which includes an exhaust port formed in a cylinder head and connected to an exhaust aperture of a cylinder, an exhaust manifold disposed on a side surface of the cylinder head and formed with a first exhaust passage, an exhaust path constituting part disposed on a side of the exhaust manifold opposite from the cylinder head, and formed with a second exhaust passage, a catalyst disposed on a downstream side of the exhaust path constituting part, an upstream gasket disposed between the side surface of the cylinder head and an upstream connecting member of the manifold, and a downstream gasket disposed between a downstream connecting member of the manifold and an exhaust-manifold-side connecting member of the exhaust path constituting part. The upstream gasket has a larger thermal resistance in an exhaust gas flow direction than the downstream gasket.. ... Mazda Motor Corporation

12/21/17 / #20170361847

Control system of a four-wheel drive vehicle and gradient value setting device of a vehicle

A control system of a four-wheel drive vehicle and a gradient value setting device of the vehicle is provided so as to reliably control a wheel skid despite the vehicle facing an intersecting direction intersecting a maximum tilt line direction. The vehicle includes an engine, front and rear wheels, an electronic control 4wd coupling, and a control unit. ... Mazda Motor Corporation

12/14/17 / #20170358097

Texture evaluation system

The present disclosure attempts to evaluate how the texture of an object is perceived based on visual features of the topological skeleton of the object. A camera s1 obtains a color image by taking an image of an object, which serves as an evaluation target. ... Mazda Motor Corporation

12/14/17 / #20170356330

Combustion chamber structure for direct injection engine

A fuel injection valve is provided for a ceiling portion of a cylinder head. A tip of an ignition electrode is arranged in the vicinity of an injection tip of the fuel injection valve. ... Mazda Motor Corporation

12/07/17 / #20170350328

Controller and control method for internal combustion engine

To provide a controller and a control method, for an internal combustion engine, that can detect occurrence of knocking appropriately, even though the frequency distribution of the knock signal is distorted according to the occurrence state of knocking. The controller for the internal combustion engine calculates the background level by processing a low pass filter to the knock signal; and performs a low side frequency increase which makes a low side frequency, which is a cutoff frequency of the low pass filter in the case where the knock signal is smaller than an output value of the low pass filter, higher than a high side frequency, which is a cutoff frequency of the low pass filter in the case where the knock signal is larger than the output value of the low pass filter.. ... Mazda Motor Corporation

12/07/17 / #20170349124

Front vehicle-body structure

An impact absorbing member is provided below a fascia upper member (upper-face forming member) which forms an upper face of a front end portion of a vehicle. The impact absorbing member comprises a front side part which includes a front wall portion, a top wall portion, and a rear wall portion so as to have a u-shaped cross section opening downward and a flat-plate shaped rear side part which extends rearward from a lower end of the rear wall portion. ... Mazda Motor Corporation

11/30/17 / #20170343799

Display apparatus for vehicle

There are provided right and left side-rearward cameras, an inside camera to detect a driver's eyeball position, main huds comprising projectors to form virtual images by projecting image information picked up by the cameras to reflecting mirrors and drive portions to adjust positions of the virtual images, and a ecu to control the projectors and the drive portions. The controller is configured to perform the process of calculating a distance between the eyeball position and a normal virtual-image display position which is located at a front end and an end portion, in a vehicle width direction, of a bonnet, and controlling the main huds such that a normal main view v1 is displayed at the normal virtual-image display position.. ... Mazda Motor Corporation

11/30/17 / #20170342895

Turbocharger engine

A turbocharger engine includes an engine body and a turbocharger. The turbocharger includes a large turbo unit having a large turbine chamber, a large compressor chamber, and a large turbine shaft extending between the two chambers; and a small turbo unit having a small turbine chamber, a small compressor chamber, and a small turbine shaft extending between the two chambers. ... Mazda Motor Corporation

11/30/17 / #20170342894

Turbocharger engine

A turbocharger engine includes a dual stage turbocharger in which a first turbo unit is disposed on the upstream side of a second turbo unit on an exhaust passage. The turbocharger is disposed in such a manner that a second turbine shaft of the second turbo unit is far from an engine output shaft than a first turbine shaft of the first turbo unit in a plan view in an axis direction of a cylinder. ... Mazda Motor Corporation

11/23/17 / #20170335963

Method and device for controlling automatic transmission

A method of controlling an automatic transmission is provided. The automatic transmission includes a piston having first and second surfaces opposite from each other, friction plates, engaging and disengaging hydraulic pressure chambers for supplying/discharging hydraulic pressure and directing the piston to push the friction plates to be engaged and disengaged, a hydraulic pressure control valve for supplying/discharging hydraulic pressure to/from the chambers, and first and second oil paths communicating the valve with the chambers. ... Mazda Motor Corporation

11/23/17 / #20170335962

Method and device for controlling automatic transmission

A method of controlling an automatic transmission is provided. The automatic transmission includes first and second frictional engageable elements and a hydraulic mechanism. ... Mazda Motor Corporation

11/23/17 / #20170335953

Method and device for controlling automatic transmission

A method of controlling an automatic transmission is provided. The automatic transmission includes a piston having first and second surfaces opposite from each other, friction plates, engaging and disengaging hydraulic pressure chambers for supplying and discharging hydraulic pressure and directing the piston to push the friction plates to be engaged and disengaged, a hydraulic pressure control valve for supplying and discharging hydraulic pressure to and from the chambers, first and second oil paths communicating the valve with the chambers, and a pressure reducing valve disposed in the second oil path and for preventing hydraulic pressure of the disengaging hydraulic pressure chamber from exceeding a given set pressure. ... Mazda Motor Corporation

11/23/17 / #20170335952

Method and device for controlling automatic transmission

A method of controlling an automatic transmission is provided. The automatic transmission includes a piston having first and second surfaces opposite from each other, friction plates, engaging and disengaging hydraulic pressure chambers for supplying hydraulic pressure and directing the piston to push the friction plates to be engaged and disengaged, a hydraulic pressure control valve for supplying and discharging hydraulic pressure to and from the chambers, and first and second oil paths communicating the valve with the chambers. ... Mazda Motor Corporation

11/23/17 / #20170335951

Method and device for controlling automatic transmission

A method of controlling an automatic transmission mounted on a vehicle having an automatic engine stop mechanism for automatically stopping and restarting an engine, is provided. The transmission includes a piston having first and second surfaces, friction plates, engaging and disengaging hydraulic pressure chambers, a hydraulic pressure control valve for supplying/discharging hydraulic pressure to/from the chambers, first and second oil paths communicating the control valve with the chambers, a pressure reducing valve for preventing pressure of the disengaging chamber from exceeding a given set pressure, a hydraulic pressure supply device for supplying pressure to the control valve in the automatic stop state, and a mechanical oil pump for supplying pressure to the control valve while the engine is driving, the second surface having a larger pressure receiving area than the first surface. ... Mazda Motor Corporation

11/23/17 / #20170335725

Flexible-fuel engine

In a flexible-fuel engine capable of using fuel containing alcohol as fuel to be combusted in a cylinder, the geometric compression ratio is set to 12 or more, the engine is started by using fuel containing alcohol, an intake valve closing timing at an engine start time is set to an advance angle side than a first reference timing being a timing corresponding to a most retarded angle position out of intake valve closing timings capable of starting the engine in combusting fuel of alcohol 100% in the cylinder at a first intake temperature, and is set to a timing on a retarded angle side than a second reference timing being a timing corresponding to a most advanced angle position out of intake valve closing timings capable of avoiding pre-ignition in combusting fuel of gasoline 100% at an engine start time at a second intake temperature.. . ... Mazda Motor Corporation

11/23/17 / #20170334443

Vehicle control apparatus capable of giving continuity to reactive perception quantities of cooperative operation perceived by occupant

A vehicle control apparatus includes: a plurality of operation devices, a plurality of reaction applying devices, a plurality of driving devices, and control device. The control device is capable of controlling the plurality of reaction applying devices and the plurality of driving devices. ... Mazda Motor Corporation

11/23/17 / #20170334438

Vehicle control apparatus for controlling continuous cooperative operation of plurality of operation devices

A vehicle control apparatus includes: a plurality of operation devices receive operations from an occupant; a plurality of driving devices operate a vehicle with operation quantities applied to the plurality of operation devices; and a control device controls the plurality of driving devices. The control device includes: first and second operating characteristics; and correction device. ... Mazda Motor Corporation

11/16/17 / #20170328301

Method of producing piston for engine

An object of the present invention is to, while forming a heat insulating layer on a squish area surface of a top surface of a piston main body, prevent generation of large cracks on the heat insulating layer and suppress damages and peeling of the heat insulating layer. To achieve this object, in the present invention, pressure is applied to a heat insulating layer provided on a top surface of a piston main body, that is, a pressing stress is applied to the heat insulating layer in advance.. ... Mazda Motor Corporation

11/16/17 / #20170328300

Heat insulation structure of combustion chamber of engine

An object of the present invention is to, while forming a heat insulating layer on a squish area surface of a top surface of a piston main body, prevent generation of large cracks on the heat insulating layer and suppress damages and peeling of the heat insulating layer. To achieve this object, in the present invention, a heat insulating layer on a squish area surface of a top surface of a piston main body is made thinner than a heat insulating layer on a cavity surface of the top surface of the piston main body.. ... Mazda Motor Corporation

10/26/17 / #20170305470

Vehicle-body structure of vehicle

A vehicle-body structure of a vehicle includes a first frame forming a closed cross-section portion, a reinforcing member disposed in the closed cross-section portion and connected to the first frame, and another vehicle-body member connected to an outer surface of the first frame. A connection portion of the first frame and the reinforcing member includes a rigid joint portion where the first frame and the reinforcing member are joined, and a flexible joint portion where the first frame and the reinforcing member are joined, with a damper member being disposed therebetween. ... Mazda Motor Corporation

10/26/17 / #20170305469

Body structure of vehicle

A body structure of a vehicle includes a first panel and a second panel that form a closed cross-sectional portion, a partitioning panel that partitions the closed cross-sectional portion, and a reinforcement member disposed between the first panel and the partitioning panel, and includes a panel joining portion joined to the first panel, and a flange portion joined to the partitioning panel. A joining portion formed by the reinforcement member includes a rigid coupling portion in which the first panel and the panel joining portion are coupled to each other while being in contact with each other, and a flexible coupling portion in which the partitioning panel and the flange portion are coupled, with a damping member being provided therebetween. ... Mazda Motor Corporation

10/12/17 / #20170292480

Air intake device of engine with supercharger

An air intake device includes a bypass passage which makes a portion of an air intake passage on an upstream side of a compressor and a portion of the air intake passage on a downstream side of the compressor communicate with each other, and a bypass passage open/close valve which opens or closes the bypass passage. The air intake passage includes a first passage extending toward an upstream side from the compressor along a first direction, a bent portion bent from an upstream end of the first passage in a second direction, and a second passage extending from an upstream end of the bent portion along the second direction. ... Mazda Motor Corporation

10/12/17 / #20170292436

Diesel engine

A diesel engine of the present invention includes a turbocharger including: a turbine provided on an exhaust passage; a compressor provided on an intake passage; and a plurality of nozzle vanes provided around the turbine to control a flow velocity of an exhaust gas colliding with the turbine, angles of the nozzle vanes being changeable. In a case where a ratio of a volume of a combustion chamber when the intake valve is closed to a volume of the combustion chamber when a piston is located at a top dead center is denoted by an effective compression ratio εe, and a total displacement of the engine is denoted by v (l), the effective compression ratio εe is set to satisfy formula (1) “−0.67×v+15.2≦εe≦14.8.”. ... Mazda Motor Corporation

10/12/17 / #20170291401

Multilayer coating film and coated object

An multi-layer coating film 12 includes: a luster coat 15 containing a luster material; a color coat 16 applied on the luster coat 15, containing a pigment 21, and having translucency; and a coloring flake 22 included in the luster coat 15 and acting as the luster material to color a surface of a luster flake with a coloring material in the same type of color as a color type of the color coat 16.. . ... Mazda Motor Corporation

10/05/17 / #20170287193

Vehicular display device

A vehicular display device mounted on a vehicle, including: a display panel; a display controller that displays an opening animation image in a predetermined display region of the display panel; and a detector that detects a getting-in action associated with an occupant getting in the vehicle, wherein the display controller displays a checklist in the predetermined display region as information relating to the vehicle after a driving source for traveling of the vehicle is started, the display controller starts a display operation of displaying the opening animation image in the display region when the getting-in action is detected by the detector, and continues the display operation at least until the checklist is displayed, and the display controller displays, as the opening animation image, an animation image in which an image display operation of changing a display form of a graphic object is periodically repeated, on the display panel.. . ... Mazda Motor Corporation

10/05/17 / #20170284516

Automatic transmission

An automatic transmission includes a first planetary gear set, a second planetary gear set, and a first brake. A first sun gear includes a first split sun gear on a drive source side, and a second split sun gear on a side opposite to the drive source. ... Mazda Motor Corporation

10/05/17 / #20170282975

Side chassis structure of vehicle

Present application discloses side chassis structure. Side chassis structure includes: apron reinforcement member; fender panel covering outside of the apron reinforcement member; and brackets connected to the fender panel. ... Mazda Motor Corporation

10/05/17 / #20170282812

Structure for attaching in-vehicle apparatus

A structure is for attaching an in-vehicle device including a display 20 standing on a dashboard 1 of a vehicle, and a controller 30 placed inside the dashboard 1. The structure includes a connecting bracket 40. ... Mazda Motor Corporation

09/28/17 / #20170276938

Head-up display device

The present application discloses a head-up display device which is mounted on a vehicle. The head-up display device includes a projection device which emits image light onto a reflective surface including a first area, and a second area below the first area. ... Mazda Motor Corporation

09/28/17 / #20170276235

Brake device of transmission

A brake device of a transmission according to the present invention includes: a rotary-side holding member including an inner peripheral surface having a cylindrical surface shape about an axis extending in a forward/rearward direction and configured to hold a rotary-side friction plate on the inner peripheral surface; a fixed-side holding member including an outer peripheral surface having a cylindrical surface shape about the axis extending in the forward/rearward direction and configured to hold a fixed-side friction plate on the outer peripheral surface; and a lubricating oil supply portion supplying lubricating oil to the fixed-side friction plate and the rotary-side friction plate. The fixed-side holding member is provided in a transmission casing so as not to rotate. ... Mazda Motor Corporation

09/28/17 / #20170276084

Misfire detecting system for engine

A misfire detecting system for an engine of a vehicle that detects a misfire of the engine is provided. The system includes a sensor configured to detect a wheel speed of the vehicle, a load adjustment device configured to adjust a load of the engine, and a processor. ... Mazda Motor Corporation

09/28/17 / #20170276083

Misfire detecting system for engine

A misfire detecting system for an engine of a vehicle that detects a misfire of the engine is provided, which includes a processor. The processor determines whether a misfire has occurred by examining whether a fluctuation of a crank angle of the engine is equal to or greater than a determination reference value, acquires a value relating to a density of intake air introduced into the engine, and adjusts the determination reference value according to the value related to the density.. ... Mazda Motor Corporation

09/28/17 / #20170276057

Thermostat monitor

Provided is a thermostat monitor (36) comprising a thermostat open failure detecting part (38) for detecting an open failure of a thermostat when a condition is such that a radiator heat radiation amount (14) radiated from a radiator on a radiator-side cooling water channel is larger than a heater core heat radiation amount (12) radiated from a heater core on a heater core-side cooling water channel, and that a difference between the radiator heat radiation amount and the heater core heat radiation amount is equal to or more than a predetermined value a. Based on a temperature of engine cooling water detected by a temperature sensor positioned in the vicinity of an outlet of an in-engine cooling water channel, it is possible to detect the open failure of the thermostat relatively easily with certainty.. ... Mazda Motor Corporation

09/28/17 / #20170276039

Engine oil deterioration diagnosis device

Provided is an engine oil deterioration diagnosis device (10) comprising annual traveling distance calculating part (16), a used hour calculating part (18), a severe condition determining part (20), an oil traveling distance calculating part (22), an oil traveling distance accumulating part (24), and an engine oil deterioration diagnosis part (26) for diagnosing that engine oil is in a state of deterioration when an oil traveling distance accumulated by the oil traveling distance accumulating part reached a predetermined value, wherein the oil traveling distance calculating part (22) comprises an oil traveling distance addition correcting part (32) for calculating the oil traveling distance by adding a predetermined value to the traveling distance when the severe condition determining part determines the state as the severe condition.. . ... Mazda Motor Corporation

09/28/17 / #20170274944

Rear structure of vehicle

A rear structure of a vehicle includes: a rear lamp (6) provided at rear (1r) of the vehicle; and a rectifying member (3) extending from a center in a vehicle width direction to an outer side in a right and left direction. The rectifying member (3) includes an outer part (32) positioned on an outside in the vehicle width direction and a central part (31) positioned on the center in the vehicle width direction. ... Mazda Motor Corporation

09/28/17 / #20170274943

Rear structure of vehicle

A rear structure of a vehicle includes: a recess (4) that is provided at rear (1r) of the vehicle and recessed in a front direction of the vehicle; and a partition member (3) that partitions the recess in a vertical direction of the vehicle. The partition member (3) is provided to be movable to a rear side, an upper side, or a lower side of the recess (4) so as to separate from the recess (4).. ... Mazda Motor Corporation

09/28/17 / #20170274764

Power train supporting structure for vehicle

A power train supporting structure for a vehicle is provided with: a power train including a transversely disposed engine, a transmission, and a transfer; and a rear mount bracket which connects a rear portion of the power train and a suspension cross member. A front portion of the rear mount bracket is connected to the transfer at a position which is below a drive shaft, and is in a vehicle up-down directional area that is an overlapping of the transmission and the transfer in view of the vehicle width direction.. ... Mazda Motor Corporation

09/21/17 / #20170267128

Seatback panel

A seatback panel forms a seatback which is configured to be selectable between a rising-up position and a falling-down position. The seatback panel is made of a metal-made plate material, and embossed portions and bead portions surrounding the embossed portions are formed in areas at its flat face. ... Mazda Motor Corporation

09/21/17 / #20170267083

Rear vehicle-body structure of automotive vehicle with storing-type roof

A deck cover is openably provided at a vehicle-body rear portion positioned in back of a cabin. A top portion of a rear wheelhouse is provided at the vehicle-body rear portion. ... Mazda Motor Corporation

09/14/17 / #20170260921

Engine control device

A pcm (60) performs a catalyst early warming control (aws control) for accelerating warm-up of a catalytic device. When the catalytic device (35) is not in an activated state and a vehicle is traveling, the pcm (60) is configured to perform: a fuel injection control to inject fuel such that a homogeneous fuel-air mixture can be formed in a combustion chamber (11) of an engine (10) so as to generate a homogeneous combustion; an intake air amount control to increase intake air amount; and an ignition control to retard ignition timing from a reference ignition timing. ... Mazda Motor Corporation

09/14/17 / #20170260912

Exhaust system of engine

An exhaust system of an engine includes a plate-like valve configured to change a cross-sectional area of an exhaust passage, a drive shaft configured to rotate the valve, a bearing provided for a wall member segmenting the exhaust passage to rotatably support the valve, and a driver configured to rotate the drive shaft. The drive shaft penetrates the wall member, and includes an extension extending outside the exhaust passage. ... Mazda Motor Corporation

09/14/17 / #20170260893

Exhaust insulator structure for multi-cylinder engine

Disclosed herein is an exhaust insulator structure for a multi-cylinder engine of a vehicle. The structure includes an exhaust manifold, an exhaust gas purifier, and a heat insulator. ... Mazda Motor Corporation

09/14/17 / #20170260891

Exhaust structure for multi-cylinder engine

A multi-cylinder engine exhaust structure disclosed herein includes: four branched exhaust pipes respectively communicating with four cylinders classified into two groups, each being comprised of two of the four cylinders with discontinuous exhaust strokes; two intermediate collecting pipes, each being formed by combining associated two of the four branched exhaust pipes respectively communicating with the two cylinders in an associated one of the two groups; a last collecting pipe formed by combining these intermediate collecting pipes; and an exhaust gas purifier coupled to an exhaust gas downstream end of the last collecting pipe. Two of the four branched exhaust pipes respectively communicating with two of the four cylinders to be activated as two active cylinders while the engine is performing a cylinder-cutoff operation are shorter than the two other branched exhaust pipes respectively communicating with the two other cylinders to be deactivated as two idle cylinders during the cylinder-cutoff operation.. ... Mazda Motor Corporation

09/07/17 / #20170254284

Engine control device and method for estimating brake pedal depressing force

A pcm (50) that is an engine control device functions to acquire a master vac negative pressure which is the negative pressure of a stabilized chamber of a master vac (126) which amplifies a brake pedal depressing force applied to a brake pedal (102), and also acquire a brake working fluid pressure that is a braking hydraulic pressure produced by a master cylinder (144) in accordance with the brake pedal depressing force amplified by the master vac (126), and in a case where both accelerator pedal (104) and a brake pedal (102) are depressed or actuated simultaneously, determine whether or not it is necessary to decrease engine output based on such master vac negative pressure and brake working fluid pressure to execute the output decreasing control for decreasing the engine output.. . ... Mazda Motor Corporation

09/07/17 / #20170254281

Engine control device

The engine control device comprises a basic target torque-deciding part for deciding a basic target torque based on a driving state of a vehicle, a torque reduction amount-deciding part for deciding a torque reduction amount based on a steering wheel operation state, an tcm for deciding a torque-down demand amount, based on a driving state of the vehicle other than the steering wheel operation state, and a final target torque-deciding part for deciding a final target torque, based on the decided basic target torque, the decided torque reduction amount and the decided torque-down demand amount, wherein the final target torque-deciding part is operable, when there is a torque-down demand, to restrict a change in the final target torque corresponding to a change in the torque reduction amount.. . ... Mazda Motor Corporation

09/07/17 / #20170254278

Engine control device

A pcm comprises a basic target torque-deciding part for deciding a basic target torque, based on a driving state of a vehicle including an accelerator pedal operation state, a torque reduction amount-deciding part for deciding a torque reduction amount, based on a driving state of the vehicle other than the accelerator pedal operation state, a final target torque-deciding part for deciding a final target torque, based on the decided basic target torque and the decided torque reduction amount, and an engine output control part for controlling an engine to cause the engine to output the decided final target torque, wherein the engine output control part is operable to prohibit switching of an operation mode of the engine from being performed simultaneously with control of the engine according to a change in the final target torque corresponding to a change in the torque reduction amount.. . ... Mazda Motor Corporation

09/07/17 / #20170253197

Noise insulation structure of automotive vehicle

A vehicle-body bottom portion comprises a noise-insulation inferior part and a noise-insulation superior part provided adjacently to a periphery of the noise-insulation inferior part. Between the vehicle-body bottom portion and a floor carpet are provided a sound-absorbing member which is arranged between the noise-insulation inferior part and the floor carpet, a cross member which connects the noise-insulation superior part and the floor carpet and seals a gap between the vehicle-body bottom portion and the floor carpet, and a noise insulation space which is adjacent to the sound-absorbing member and the cross member and enclosed by the sound-absorbing member and the cross member.. ... Mazda Motor Corporation

08/24/17 / #20170241546

Automatic transmission

Provided is an automatic transmission including: an input section to which power generated by a drive source is input; an output section configured to output a drive force; and a gear shifting mechanism configured to change a gear ratio. The power is input to the input section without intervention of a hydraulic power transmission device. ... Mazda Motor Corporation

08/24/17 / #20170241487

Frictional engagement element and automatic transmission

Provided is a frictional engagement element including: a plurality of friction plates; a piston movable between a releasing position and an engaging position; and a first urging mechanism and a second urging mechanism configured to urge the piston in an engaging direction from the releasing position toward the engaging position. Urging forces of both of the first urging mechanism and the second urging mechanism act on the piston from the releasing position to a first position in the engaging direction. ... Mazda Motor Corporation

08/24/17 / #20170241329

Engine supercharger

Disclosed herein is a technique for providing an engine supercharger allowing an exhaust gas to efficiently act on a turbine in a wide operating range. A turbine for use in a supercharger includes a turbine housing, a turbine scroll formed inside the housing continuously with a turbine lead-in route, and a turbine wheel to turn on an axis of rotation close to a tongue portion. ... Mazda Motor Corporation

08/24/17 / #20170241179

Door support structure of automotive vehicle

A door hinge is provided to slant such that a free end of a door is rotated obliquely upward while the door is opened, and an energizing type balancer to assist an opening/closing operation of the door is provided. A hinge axis of the door hinge slants relative to a vertical line, having an upper side thereof being positioned on an inward side in a vehicle width direction and on a forward side in a vehicle longitudinal direction such that a locus of the free end of the door while the door is opened becomes substantially horizontal or lowers in an opening direction at a point before the door is opened to a maximum open position.. ... Mazda Motor Corporation

08/24/17 / #20170240741

Interior/exterior automobile trim component

Disclosed herein is an interior/exterior automotive trim component in which each of carbonate copolymers forming a polycarbonate resin composition is comprised of structural units derived from two or more different dihydroxy compounds. The structural units derived from the dihydroxy compounds include an isb unit and a chdm unit. ... Mazda Motor Corporation

08/24/17 / #20170240044

Pedal structure of automotive vehicle

In a pedal structure of an automotive vehicle which includes a brake pedal and an accelerator pedal which are provided at a vehicle body side by side in a vehicle width direction, the accelerator pedal comprises an accelerator pedal body to receive a pressing operation by a right foot, a hinge portion pivotally supporting a lower end of the accelerator pedal body, and a pedal base supporting the accelerator pedal body via the hinge portion, and a heel support portion to support the right foot's heel is provided at the pedal base. The heel support portion is positioned on a left side of and adjacently to the hinge portion and spaced apart forward from the hinge portion by a specified distance.. ... Mazda Motor Corporation

08/24/17 / #20170240031

Door structure of automotive vehicle and assembly method of the same

Guide rails with which a window regulator is provided are respectively fixed to a module plate. The guide rails are fixed, together with the module plate, to an edge of an opening portion provided at inward frames from an outward side in a vehicle width direction. ... Mazda Motor Corporation

08/24/17 / #20170240029

Door structure of automotive vehicle

Vertical frame portions provided at both side portions of a door frame are a light-metal casting, plural connecting frames, which are a light-meal hollow extrusion molding, connect the vertical frame portions, the vertical frame portions are provided with protrusion portions which engage with inward connecting frames in a longitudinal direction, plural attachment portions which attach the outward connecting frames and the vertical frame portion are provided at different points in the longitudinal direction, and an outward connecting frame is provided with an upper rib which engages with an engagement recess portion provided at an upper portion of a door outer panel formed in a non-planar shape.. . ... Mazda Motor Corporation

08/17/17 / #20170234969

Radar device

A radar device 10, mounted on a vehicle a, for repeatedly performing a measurement of a target at every predetermined measurement interval, comprising a transmitting and receiving part 14 for, in each of the measurement events, transmitting a measurement wave p, and receiving a reflection wave r thereof as a detection wave, and a controller 12 for controlling the transmitting and receiving part 14, wherein the controller 12 is configured to control the transmitting and receiving part 14 so that at least one of a length (t1, t2) of each of the measurement intervals and a signal strength (i1, i2) of each of the measurement waves p is changed with time.. . ... Mazda Motor Corporation

08/17/17 / #20170234771

Temperature display device of vehicle

A temperature display device of a vehicle is provided, which includes a temperature sensor for detecting a temperature of coolant of an engine, the coolant being switched in circulation state by opening and closing a thermostat, between a first state where the coolant is circulated through a radiator and a second state where the coolant is circulated bypassing the radiator, a display unit for displaying a temperature of the coolant, and a controller for controlling a display mode of the display unit based on the detected temperature by the temperature sensor. When the detected temperature changes within a first temperature range where the thermostat is in an open state, the controller changes the displayed temperature on the display unit by less than the change of the detected temperature.. ... Mazda Motor Corporation

08/17/17 / #20170234410

Automatic transmission

An automatic transmission includes: a brake device including a friction plate set configured with fixation friction plates and rotation friction plates alternately arranged, a piston, and an oil pressure chamber supplied with oil pressure that moves the piston toward the friction plate set side; a first rotating member; and second and third rotating members arranged at both respective axial sides of the first rotating member and each having an outer diameter smaller than that of the first rotating member. The friction plate set and the oil pressure chamber are arranged at both respective axial sides of the first rotating member and also arranged at an outer periphery side of the second rotating member and at the outer periphery side of the third rotating member, respectively. ... Mazda Motor Corporation

08/17/17 / #20170234252

Engine controller

The engine controller includes an acceleration input detector that detects an accelerator pedal motion, a fuel injection amount calculator that calculates a target fuel injection amount, a fuel injection controller that controls the fuel injector, an egr valve opening calculator that calculates a target egr valve opening, and an egr controller that controls the egr valve. The egr controller controls, after the accelerator pedal motion has been given, the egr valve in a direction to decrease an opening of the egr valve to a target egr valve opening corresponding to a running condition to be reached after the accelerator pedal motion has been given. ... Mazda Motor Corporation

08/17/17 / #20170234247

Turbocharged engine control device

The turbocharged engine control device comprises a basic target torque-deciding part for deciding a basic target torque based on a driving state of a vehicle including an accelerator pedal operation state; a torque reduction amount-deciding part for deciding a torque reduction amount based on a driving state of the vehicle other than the accelerator pedal operation state; a final target torque-deciding part for deciding a final target torque based on the decided basic target torque and the decided torque reduction amount; and an engine output control part for controlling an intake air amount so as to realize a target air amount required for an engine to output the decided final target torque, wherein the engine output control part is operable, when an operating state of the engine falls within a supercharging region, to restrict a reduction in the intake air amount corresponding to a change in the torque reduction amount.. . ... Mazda Motor Corporation

08/17/17 / #20170234211

Engine supercharger

Disclosed herein is a technique for providing an engine supercharger of a reduced size allowing an exhaust gas to be introduced smoothly into a turbine scroll. A turbine for use in this supercharger includes: a turbine lead-in route, into which the exhaust gas is introduced; a turbine scroll formed continuously with the turbine lead-in route to allow the exhaust gas to swirl around inside; a turbine wheel to turn on an axis of rotation; a turbine lead-out route; a wastegate passage to bypass the exhaust gas around the turbine scroll; and a wastegate valve. ... Mazda Motor Corporation

08/17/17 / #20170234210

Turbocharged engine control device

The turbocharged engine control device comprises a basic target torque-deciding part for deciding a basic target torque based on a driving state of a vehicle including an accelerator pedal operation state; a torque reduction amount-deciding part for deciding a torque reduction amount based on a driving state of the vehicle other than the accelerator pedal operation state; a final target torque-deciding part for deciding a final target torque based on the decided basic target torque and the decided torque reduction amount; and an engine output control part for controlling the engine so as to cause the engine to output the decided final target torque, wherein the engine output control part is operable, when an operating state of the engine falls within a supercharging region where supercharging by a compressor, to restrict control of the engine corresponding to a change in the torque reduction amount.. . ... Mazda Motor Corporation

08/17/17 / #20170234209

Supercharging device for engine

A supercharging device for an engine includes an electric supercharger which supercharges intake air, an intercooler which cools intake air discharged from the electric supercharger; and an intake manifold which is disposed substantially horizontally, and is configured to communicate between a downstream end of the intercooler in an intake air flow direction, and intake ports. The downstream end of the intercooler is located on a lower end of the intercooler. ... Mazda Motor Corporation

08/17/17 / #20170234207

Intake air cooling device for engine

An intake air cooling device includes an intake manifold communicating with intake ports, and an intercooler disposed laterally of a cylinder head for cooling intake air. The intake manifold includes a manifold body fastened to the cylinder head, and a cooler forming portion communicating with the upstream end of the manifold body and constituting the lower end of the intercooler. ... Mazda Motor Corporation

08/17/17 / #20170232964

Vehicle control device

When an own vehicle v1 crosses an opposite traffic lane r2 at an intersection to make a right turn, an ecu 20 such as a vehicle control device detects a presence of a crossing person p crossing a crosswalk cw existing near the intersection on a road r3 which the vehicle v1 is directed to enter by making the right turn, detects a size of a space between the crosswalk sp on which the detected crossing person p crosses and the opposite traffic lane, and when performing a control for braking the vehicle v1 so as to avoid a collision of at least the vehicle v1 with the crossing person p, changes a timing to perform the control for braking the vehicle v1 based on the detected size of the space sp up to the crosswalk cw.. . ... Mazda Motor Corporation

08/17/17 / #20170232884

Vehicle lighting control system

A vehicle lighting control system for controlling headlights of a vehicle and a display device comprises an illuminance detector for detecting an illuminance outside of the vehicle, and a lighting controller for controlling luminances of the headlights and the display device based on the detected illuminance. The lighting controller includes a headlight controlling module for turning the headlights off when the illuminance is above a first threshold, and turning the headlights on when the illuminance is the first threshold or below, and a display device controlling module for controlling the luminance of the display device to a first set value when the illuminance is above a second threshold, and controlling the luminance of the display device to a second set value when the illuminance is the second threshold or below, the second threshold being lower than the first threshold, the second set value being lower than the first set value.. ... Mazda Motor Corporation

08/10/17 / #20170226953

Engine control device

. . A control device of the present invention is applied to an engine provided with a fuel injection valve which directly injects fuel into a combustion chamber. The control device includes a pre-ignition prediction unit which predicts occurrence of pre-ignition when the engine is started; and an injection control unit which causes fuel to be injected in an expansion stroke from the fuel injection valve when occurrence of pre-ignition is predicted by the pre-ignition prediction unit. ... Mazda Motor Corporation

08/10/17 / #20170225718

Lower vehicle-body structure of vehicle

In a lower vehicle-body structure of a vehicle which comprises a suspension cross member, a side member, and first and second reinforcing members which are provided in a closed cross section formed by the side member and a slant portion, the suspension cross member being fixed by fastening a bolt which is inserted through the suspension cross member to a weld nut which is vertically fixed to a bottom plate portion of the side member, the first reinforcing member is joined to a front-side semicircular portion of a peripheral portion of the weld nut and the second reinforcing member is joined to a rear-side semicircular portion of the peripheral portion of the weld nut.. . ... Mazda Motor Corporation

08/03/17 / #20170218206

Multilayer coating film and coated object

A multilayer coating film 12 includes a bright layer 15 and a colored layer 16 superposed on the bright layer 15, the bright layer 15 including aluminum flakes 22, and the colored layer 16 including a black pigment 23 dispersed in the colored layer 16. The black pigment 23 in the colored layer 16 has a particle size distribution with a peak at a particle size of 200 nm or lower.. ... Mazda Motor Corporation

07/27/17 / #20170211689

Control device of automatic transmission and method of controlling automatic transmission

An object of the present invention is, even if an abnormality occurs in an oil pressure circuit of an automatic transmission, to avoid a case where a traveling performance deterioration by the abnormality when gear change is performed. The present invention provides a control device of an automatic transmission and a method of controlling the automatic transmission, each of which switches from a normal state to an abnormality diagnosis state at a predetermined change gear ratio to diagnose whether there is an abnormality in an automatic transmission, the normal state being a state where an oil pressure supply portion supplies oil pressure to a predetermined friction engaging element, the abnormality diagnosis state being a state where an abnormality diagnosis oil pressure supply portion including an oil pressure supply passage different from an oil pressure supply passage of the oil pressure supply portion supplies the oil pressure to the predetermined friction engaging element.. ... Mazda Motor Corporation

07/27/17 / #20170211431

Oil supply device for engine

A controller sets a target hydraulic pressure from a required hydraulic pressure of a hydraulically operated device according to an operating condition of an engine. The controller causes an oil control valve to perform feedback control of the discharge amount of an oil pump in such a manner that an actual hydraulic pressure detected by a hydraulic pressure sensor coincides with the target hydraulic pressure. ... Mazda Motor Corporation

07/27/17 / #20170211201

Layered coating film, and coated article

A layered coating film according to the present invention includes a lower coat 30 including a first coloring material and a bright material, and an upper coat 20 superposed on the lower coat and including a second coloring material. The upper coat and the lower coat have similar colors. ... Mazda Motor Corporation

07/27/17 / #20170210259

Seat heater control device using electrostatic sensor

The seat heater control device is provided for a vehicle including a vehicle body, a vehicle seat and a seat heater. The seat heater control device includes: an electrostatic sensor provided in the vehicle seat and configured to measure capacitance between the electrostatic sensor and the vehicle body; and a controller configured to control an operation and/or an operational temperature of the seat heater, based on a measured value of the electrostatic sensor. ... Mazda Motor Corporation

07/27/17 / #20170210245

Occupant detection device using electrostatic sensor

The object is to provide an occupant detection device that can accurately detect whether there is a passenger, even when a personal computer, a tablet terminal, a smartphone or the like is placed on a vehicle seat. The occupant detection device is provided for a vehicle including a vehicle body, a vehicle seat and an in-vehicle battery. ... Mazda Motor Corporation








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