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Hitachi Automotive Systems Ltd patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hitachi Automotive Systems Ltd-related inventors


 new patent  Valve timing control device for internal combustion engine

A valve timing control device for an internal combustion engine; a driving rotation member to which a rotational force is transmitted from a crank shaft; a driven rotation member arranged to rotate as a unit with a cam shaft; and a fixing member disposed between an axial one end portion... Hitachi Automotive Systems Ltd

 new patent  Valve timing control device for internal combustion engine

Lock pin (71) is disposed movably in axial direction in accommodation hole (70) formed at vane rotor (12). Top end portion of lock pin (71) is fitted into lock hole (23) provided at housing (11), then relative rotation position of vane rotor (12) is restrained at predetermined lock position. Vane... Hitachi Automotive Systems Ltd

 new patent  Flow rate control valve and high-pressure fuel supply pump

Responsiveness of an electromagnetic flow-rate control valve provided for closing a suction valve is improved and a discharge flow rate is controlled to a desired value. A flow-rate control valve includes a fixed core arranged on an inner circumferential side of a coil, a yoke arranged on an outer circumferential... Hitachi Automotive Systems Ltd

 new patent  High-pressure fuel pump and producing same

Provide is a high-pressure fuel pump capable of improving the degree of freedom of layout of members to be attached to a pump body and a producing method thereof. Therefore, the high-pressure fuel pump includes the suction joint that sucks fuel, the pump body formed with the pressurizing chamber that... Hitachi Automotive Systems Ltd

 new patent  Variable capacity oil pump

A variable capacity oil pump controlling a pump discharge pressure to a two-stage characteristic includes: an electromagnetic switching valve formed to enable a switching between a state in which oil is discharged from a second control oil chamber and a state in which oil is introduced into the second control... Hitachi Automotive Systems Ltd

 new patent  Object detection device

Provided is an object detection device capable of reliably recognizing a vehicle. This object detection device detects multiple three-dimensional objects from a left image and a right image captured with a left imaging unit and a right imaging unit (S103), extracts, as combination candidates from among the multiple three-dimensional objects,... Hitachi Automotive Systems Ltd

 new patent  Onboard environment recognition device

An onboard environment recognition device is obtained with which it is possible to improve recognition performance within the headlight illumination range and outside the headlight illumination range of a vehicle with an onboard camera. This onboard environment recognition device has: an imaging unit 100 for imaging, using a camera installed... Hitachi Automotive Systems Ltd

 new patent  Power storage device

An object is to obtain a power storage device which can prevent infiltration of a fluid such as water through a gas exhaust tube. A power storage device of the present invention includes a power storage case housing battery cells, a gas exhaust tube communicating between the interior and exterior... Hitachi Automotive Systems Ltd

 new patent  Assembled battery

The objective is to obtain an assembled battery that can relieve the stress acting on the circuit board in the case. This assembled battery of the present invention includes a case for retaining a plurality of single batteries side by side, an insulation cover covering one surface side of the... Hitachi Automotive Systems Ltd

 new patent  Inverter control device

An object of the invention is to correct a variation of a gain of a current sensor without causing an increase in size and a high cost of an inverter control device. An inverter control device according to the invention includes a 3-phase/dq-axis conversion unit which converts the output current... Hitachi Automotive Systems Ltd

High-pressure fuel pump

An object is to suppress cavitation generated at a distal end portion of a seat face when a valve body and a seat portion collide with each other. In a relief valve of a fuel pump, an intersection between the seat face and a flow channel hole is formed at... Hitachi Automotive Systems Ltd

Electric drive apparatus and electric power steering apparatus

In an electric driving apparatus and an electric power steering apparatus, an electronic control assembly is divided into a power-supply circuit unit mounted on a metal substrate, a power-conversion circuit unit mounted on a metal substrate, and a control circuit unit mounted on a resin substrate. A power-supply-connector wiring part,... Hitachi Automotive Systems Ltd

Case structure for electronic control device

Depending on the orientation by which a breathing filter is mounted in a vehicle, water can accumulate in the breathing filter, and prevent the pressure difference between the space inside a case and the outside air from being adjusted; therefore, the vehicular layout is limited. Also, because the filter is... Hitachi Automotive Systems Ltd

Vehicle control device

A relay diagnosis unit diagnosing a relay turning ON and OFF an electric power to a transmission control device. The transmission control device is equipped with a main control unit and a monitoring unit monitoring the main control unit on the basis of a signal from the main control unit,... Hitachi Automotive Systems Ltd

Battery module

The present invention proposes a structure of a battery module in which a spacer can slide by means of a guide member constituting the battery module and can be positioned. A battery module according to the present invention is a battery module 9 provided with a battery block 8 in... Hitachi Automotive Systems Ltd

Electricity storage block and electricity storage module

An electricity storage block includes: an element stacked body in which a plurality of square electricity storage elements is stacked and arranged such that wide surfaces of the adjacent square electricity storage elements are opposed to each other; and a pressing device that presses the element stacked body toward the... Hitachi Automotive Systems Ltd

Power converter

The power converter includes an inverter circuit 140, a capacitor 514 for smoothing DC power, a capacitor 515 for removing noise, and conductors 564p and 564n. The conductors 564p and 564n are connected to the capacitors 514 and 515 when power side terminals 562p and 562n are connected to an... Hitachi Automotive Systems Ltd

Motor drive device and phase current detecting three-phase brushless motor

The present invention relates to a motor drive device and a phase current detecting method for a three-phase brushless motor, and more particularly to a technique of detecting each phase current through A/D conversion that is carried out once per PWM carrier cycle, by use of a current sensor for... Hitachi Automotive Systems Ltd

Method and producing a rod-like body

The method includes a preprocessing transfer step which places an unprocessed rod-like body in a receiving position; a post-processing transfer step which pushes a processed rod-like body with the unprocessed rod-like body, and thus transfers the processed rod-like body to a rail portion; a rail portion transfer step which pushes... Hitachi Automotive Systems Ltd

Brake control apparatus

Even when downstream stiffness in a brake hydraulic circuit changes due to variation in a caliper forming a part of a wheel cylinder, temperature, wear degree, and deterioration of a frictional pad, and/or the like, a brake control apparatus performs calculation processing for calculating a switching reference operation amount, switching... Hitachi Automotive Systems Ltd

Compression ratio adjustment internal combustion engine

An object of the present invention is to provide a variable mechanism apparatus for an internal combustion engine capable of preventing a crown surface of a piston and intake and exhaust valves from interfering with each other or sufficiently acquiring an internal EGR effect during an exhaust stroke when a... Hitachi Automotive Systems Ltd

Control device

The invention, while reducing noise, suppresses a load increase in a processor and a delay in drive control. An engine control unit includes a processor, a driving circuit including a switching element to drive a load such as a fuel injector and an ignition device, and a communication circuit that... Hitachi Automotive Systems Ltd

Power steering device and control device for on-board device

A CPU 38 is connected to a first judgment circuit 36 accommodated in a sensor housing 15 through a first signal line 44A and a second signal line 45A. The first judgment circuit 36 is connected to first to fourth torque detection elements 32a, 33a, 34a and 35a of a... Hitachi Automotive Systems Ltd

Cylinder device

Provided is a cylinder device including: an inner cylinder in which a functional fluid, a fluid property of which is changed due to an electric field or a magnetic field, is encapsulated; an outer cylinder provided outside the inner cylinder; and a flow path forming unit provided between the inner... Hitachi Automotive Systems Ltd

Damper and assembling damper

Provided are a damper configured such that the axial play between a coil case and a case member can be eliminated without increasing a size of a solenoid, and a method of assembling the damper. An O-ring (seal member) is elastically supported by a tapered hole formed in an inner... Hitachi Automotive Systems Ltd

Rectangular secondary battery

The purpose of the present invention is to allow a gas to be stably discharged from a cracking valve even if a battery lid is deformed toward a wound group side. In a rectangular secondary battery of the present invention, a curved surface portion of a flat wound group is... Hitachi Automotive Systems Ltd

Travel control device for vehicle

Provided is a travel control device for a vehicle such that comfortable and safe control for the vehicle is possible without disturbing the driver. The travel control device for the vehicle is provided with a control command computation unit for calculating a steering assist amount for assisting the steering of... Hitachi Automotive Systems Ltd

Autonomous driving control apparatus

It is an object of the present invention to switch driving modes smoothly and ensure that a passenger understands driving operations controlled in the relevant driving mode and necessary driving operations. An autonomous driving control apparatus capable of switching between a manual driving mode which requires driving operation by a... Hitachi Automotive Systems Ltd

Rotating electric machine and vehicle equipped with the rotating electric machine

A rotating electric machine, in which a cross conductors of a stator connect slot conductors so as to stride N+1 slots at coil ends on one side and stride N−1 slots at coil ends on another side, with N representing a number of slots per pole, a stator winding includes... Hitachi Automotive Systems Ltd

Communication device and communication system

A communication device that performs bidirectional multiplex communication between a plurality of slave communication devices and the communication device is provided with: a first port connected to one end section of a transmission line to which the slave communication devices are connected; a second port connected to the other end... Hitachi Automotive Systems Ltd

Air suspension system

A replenishment passage connects a compressor to a tank, and a first check valve is provided in the middle of the replenishment passage. A supply/discharge passage connects the tank to air suspensions. A supply/discharge switching valve is provided in the middle of the supply/discharge passage, and suspension control valves are... Hitachi Automotive Systems Ltd

Cooling system for internal combustion engine, and control method thereof

The present invention provides a cooling system for an internal combustion engine, comprising: a flow channel switching valve for switching between a plurality of cooling water channels at least including a heater line for air heating, a block line for cooling an engine block, and a transmission line for an... Hitachi Automotive Systems Ltd

Position detection device

The purpose of the present invention is to provide an eddy current position sensor that is less susceptible to the influence of changes in gaps due to installation or changes in temperature, or by changes in coil properties due to changes in temperature. The present invention is configured to detect... Hitachi Automotive Systems Ltd

Signal detection capacitance detection type sensor, mems sensor, and system

In a capacitance detection type sensor system, a sensitivity of the sensor system deteriorates because a low frequency noise typified by a 1/f noise cannot be separated in frequency from a signal band. A carrier wave used for capacity detection is modulated with two kinds of frequencies, sampled at a... Hitachi Automotive Systems Ltd

Image acquisition device

An image acquisition device comprises: a plurality of image acquisition units, at least one image acquisition unit of the plurality of image acquisition units being an image acquisition unit that acquires an image at a first frame rate and at least one image acquisition unit of the plurality of image... Hitachi Automotive Systems Ltd

03/15/18 / #20180071834

Chuck device

A chuck device includes: a cylindrical chuck including a first contact part on a first side and a second contact part on a second side, and configured to hold a bar-like workpiece; a tubular outer cylinder including a restriction part configured to restrict axial movement of the chuck by abutting... Hitachi Automotive Systems Ltd

03/15/18 / #20180072285

Brake control apparatus

A parking brake control apparatus 20 drives an electric motor 43B to advance a piston 39 according to an application request signal from a parking brake switch 19. The parking brake control apparatus 20 includes a running state detection portion that calculates a running state about whether a vehicle is... Hitachi Automotive Systems Ltd

03/15/18 / #20180073905

Flow sensor, manufacturing flow sensor and flow sensor module

A flow sensor structure seals the surface of an electric control circuit and part of a semiconductor device via a manufacturing method that prevents occurrence of flash or chip crack when clamping the semiconductor device via a mold. The flow sensor structure includes a semiconductor device having an air flow... Hitachi Automotive Systems Ltd

03/15/18 / #20180074129

Battery control device and electric motor vehicle system

Provided are a battery control device which can estimates an SOC of a battery with a high accuracy, and an electric motor vehicle system. The battery control device (190) includes a feature amount calculation unit (152) which calculates a feature amount indicating a charging/discharging pattern of the battery, a first... Hitachi Automotive Systems Ltd

03/15/18 / #20180075674

Vehicular control device and controlling vehicular control device

The present invention relates to a vehicular control device including a plurality of ECUs connected to each other through an in-vehicle network. The vehicular control device includes a first control device that controls an electrical component and a second control device connected to the first control device through an in-vehicle... Hitachi Automotive Systems Ltd

03/08/18 / #20180065611

Brake control device and control method

A brake control device and a control method, which are capable of improving responsiveness of vehicle braking at a low temperature. The brake control device configured to brake a vehicle by a hydraulic pressure control mechanism configured to apply hydraulic pressure from a master cylinder to a wheel cylinder includes:... Hitachi Automotive Systems Ltd

03/08/18 / #20180066593

Control device for internal combustion engine and abnormal combustion detecting method

There are provided a control device and an abnormal combustion detecting method for detecting occurrence of abnormal combustion during an expansion stroke of an internal combustion engine. The control device of the present invention receives a detection signal of a vibration sensor for detecting pressure vibration in a combustion chamber,... Hitachi Automotive Systems Ltd

03/08/18 / #20180066619

High-pressure fuel supply pump having electromagnetically-driven intake valve

A fuel pump includes an intake valve unit which is provided between a low-pressure chamber and a pressurizing chamber. The intake valve unit includes an intake valve configured to move in an axial direction of the intake valve unit and a valve stopper arranged between the intake valve and the... Hitachi Automotive Systems Ltd

03/08/18 / #20180066620

Fuel injection valve

Disclosed is a fuel injection valve comprising: a fuel injection orifice provided in a downstream side of a valve seat which a valve body moves toward and away from; a swirl chamber having a swirl passage formed around the entry opening of the fuel injection orifice; and a transverse passage... Hitachi Automotive Systems Ltd

03/08/18 / #20180066752

Controller for vehicle transmission

Provided is a method of securing a safe state of a vehicle transmission and avoiding deterioration of drivability without restricting a function of the vehicle transmission when a ROM failure is detected in a controller for a vehicle transmission. A software program is duplicated in a unit of control with... Hitachi Automotive Systems Ltd

03/01/18 / #20180056987

Vehicle control apparatus and vehicle control method

An object of the present invention is to provide a vehicle control apparatus and a vehicle control method capable of improving traceability when a speed reduction torque is applied. A vehicle control apparatus according to the present invention is configured to calculate the speed reduction torque to be generated on... Hitachi Automotive Systems Ltd

03/01/18 / #20180057008

Vehicular control device, controlling vehicular control device, and vehicular control system

A vehicular control device includes a control unit that controls an electrical component, a wake-up circuit that wakes up the control unit on the basis of a wake-up signal from a switch for operating the electrical component, and a wake-up stop circuit that interrupts the wake-up signal supplied from the... Hitachi Automotive Systems Ltd

03/01/18 / #20180058314

Control device and control vehicle drive mechanism

The present invention relates to a control device and to a control method for a vehicle drive mechanism including a moving body having a movability range regulated by two stoppers, and a sensor which senses a position of the moving body. The control device of the present invention learns an... Hitachi Automotive Systems Ltd

03/01/18 / #20180062123

Rectangular secondary battery

Provided is a rectangular secondary cell enabling seal performance of a gasket to be improved with a simple structure without enlarging a shaft of a terminal. A rectangular secondary cell according to the present invention includes a cell can housing a winding group and having an opening portion, a lid... Hitachi Automotive Systems Ltd

03/01/18 / #20180062556

Drive control unit for motor

A drive control unit in which a drive control system for a motor is made redundant so that a motor having two coil sets is individually driven and controlled for each coil set includes an inverter substrate on which a first inverter circuit that drives each coil of a first... Hitachi Automotive Systems Ltd

02/22/18 / #20180050681

Battery control device and vehicle system

A device for controlling current for charging/discharging a battery with a high accuracy includes a time-point setting unit which calculates a voltage difference by subtracting a calculated open-circuit voltage from a measured closed-circuit voltage, and sets first and second time points, at which an absolute value of the voltage difference... Hitachi Automotive Systems Ltd

02/22/18 / #20180050702

Automatic driving control device

Control can be continued so that control of automatic driving is not canceled even in a non-average specific road environment. An automatic driving control device, which controls an actuator of a vehicle in order to automatically travel on a road without driver operation through the use of an external surrounding... Hitachi Automotive Systems Ltd

02/22/18 / #20180051645

Device and detecting abnormality in rotation phase detection device, and rotation position control device using same

It is intended to, when abnormality in either one of two rotation detection sections with different detection frequencies occurs, quickly and highly accurately detect the abnormality to favorably deal with abnormality occurring during low engine rotation. It is determined that abnormality is present in the rotation phase detection section, when... Hitachi Automotive Systems Ltd

02/22/18 / #20180051766

Cylinder device

Provided is a cylinder device whereby it is possible to easily change and distinguish (identify) damping force characteristics. This cylinder device is equipped with: an inner cylinder in which a function fluid, which is changed in fluid properties by an electrical field or a magnetic field, is sealed, and into... Hitachi Automotive Systems Ltd

02/22/18 / #20180051767

Cylinder device

A cylinder device includes: an inner cylinder in which a functional fluid, a fluid property of which is changed due to an electric field or a magnetic field, is encapsulated; an outer cylinder provided outside the inner cylinder; an intermediate cylinder provided between the inner cylinder and the outer cylinder... Hitachi Automotive Systems Ltd

02/22/18 / #20180051815

Flow rate control valve

In a flow rate control valve CV provided with seal members S1 to S3 arranged radially between a housing 1 and a valve body 3 rotatably supported in the housing 1, seal members which hermetically seals the space radially between the housing 1 and valve body 3 by sliding against... Hitachi Automotive Systems Ltd

02/22/18 / #20180052207

Battery management device, battery monitoring circuit, and control system

Measurement of a cell voltage is executed immediately after diagnosis of a battery management device is ended. In a battery management device, current sources repeatedly perform an energization operation to cause a current to flow to voltage detection lines with a magnitude of the current that enables each amount of... Hitachi Automotive Systems Ltd

02/22/18 / #20180053404

Vehicle information processing apparatus and vehicle information processing program

A vehicle information processing apparatus detects the relative positions multiple vehicles that travel on a road having multiple lanes in the same direction. The apparatus includes a vehicle travel information acquisition unit configured to acquire at least one of position information and speed information measured for a first vehicle, and... Hitachi Automotive Systems Ltd

02/22/18 / #20180054552

Imaging device

The purpose of the present invention is to provide an imaging device in which an imaging substrate and another substrate are connected by a cable and which is able to satisfactorily suppress the influence of noise caused by the cable while achieving improved manufacturing workability. The present invention is provided... Hitachi Automotive Systems Ltd

02/15/18 / #20180043781

Battery managing device, battery monitoring circuit, and control system

Cell voltage measurement is executed immediately after termination of diagnosis on a cell voltage detection function. In a battery managing device 10, a voltage detecting unit 140 detects a terminal voltage of each of battery cells 21 and 22. An RC filter 110 is electrically connected to voltage detecting lines... Hitachi Automotive Systems Ltd

02/15/18 / #20180043924

Electric power steering apparatus

An electric power steering apparatus according to the present invention has a biasing member arranged to bias a rack retainer toward a rack bar, wherein a biasing force of the biasing member is set such that, in a two-axis coordinate system with a rotation amount of a steering wheel on... Hitachi Automotive Systems Ltd

02/15/18 / #20180045155

High-pressure fuel supply pump

A fuel supply pump includes a pressurizing chamber, a high-pressure path, and a valve unit. The valve unit includes an outlet valve which is configured to open to allow fuel in the pressurizing chamber to flow to the high-pressure path when fuel pressure in the pressurizing chamber becomes higher than... Hitachi Automotive Systems Ltd

02/15/18 / #20180045156

Fuel injection valve

A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve... Hitachi Automotive Systems Ltd

02/15/18 / #20180048198

Electric machine with q-offset grooved interior-magnet rotor and vehicle

A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among... Hitachi Automotive Systems Ltd

02/08/18 / #20180037130

Battery controller and vehicle system

A battery controller capable of increasing the number of chances of being able to acquire information on a secondary battery storage capacity and a vehicle system having the battery controller mounted thereon are provided. A battery controller 120 mounted on a vehicle system 200 includes a time point setting unit... Hitachi Automotive Systems Ltd

Patent Packs
02/08/18 / #20180037203

Hydraulic control apparatus and brake system

An object of the present invention is to provide a hydraulic control apparatus and a brake system capable of preventing or cutting down a cost increase. According to one aspect of the present invention, a hydraulic control apparatus includes a hydraulic source provided inside a housing and configured to generate... Hitachi Automotive Systems Ltd

02/08/18 / #20180038267

Cooling device of internal combustion engine for vehicle and control method thereof

The present invention relates to a cooling device of internal combustion engine for vehicle and a control method thereof. The cooling device according to the present invention includes: an electric water pump; a bypass line bypassing a radiator; and a flow rate control valve for controlling a flow rate of... Hitachi Automotive Systems Ltd

02/08/18 / #20180038309

Piston of internal combustion engine or processing surface of piston of internal combustion engine

Provided is a piston of an internal combustion engine that can reduce a fluid lubrication frictional coefficient on an outer peripheral surface of a skirt portion. The piston of the internal combustion engine includes at least one electrodeposited film on the outer peripheral surface of the skirt portion that is... Hitachi Automotive Systems Ltd

02/08/18 / #20180038689

Object detection device

The purpose of the present invention is to provide an object detection device conducive to carrying out control in an appropriate manner according to the surrounding environment, with consideration to the accuracy of locations of detected objects. The device is characterized by being provided with: a parallax information generation unit... Hitachi Automotive Systems Ltd

02/08/18 / #20180041136

Power semiconductor module and electric power conversion device

An object of the present invention is to achieve both low height and miniaturization of a double side cooling type electric power conversion device. A power semiconductor module according to the present invention includes: a circuit body including a power semiconductor device and a terminal; and a case forming an... Hitachi Automotive Systems Ltd

02/01/18 / #20180030888

Balancer device for internal combustion engine

Provided is a balancer device for an internal combustion engine capable of effectively decreasing gear rattle between gears of a drive mechanism. A balancer drive gear and a balancer driven gear are arranged on a second end side of a drive-side balancer shaft and a second end side of a... Hitachi Automotive Systems Ltd

02/01/18 / #20180034406

Motor drive device

A motor drive device (inverter device 100) for an open winding type motor 200 in which a stator winding wire includes three-phase independent winding wires 210, 220, and 230 includes a plurality of single-phase inverters 160, 170, and 180 provided for each of the winding wires 210 to 230 to... Hitachi Automotive Systems Ltd

02/01/18 / #20180035555

Electronic control device

Electronic control device has case, circuit board and cover. Case bottom wall section has insertion guide rising up from top surface thereof. Insertion guide has guide hole in top section wall, through which terminal of solenoid coil is inserted, and guide groove surrounding at least three sides of terminal is... Hitachi Automotive Systems Ltd

01/25/18 / #20180022332

Brake apparatus

An object of the present invention is to provide a brake apparatus capable of acquiring a sufficient braking force when an abnormality has occurred. The brake apparatus includes a stroke simulator. The stroke simulator is connected to a portion of an oil passage between a master cylinder and a valve.... Hitachi Automotive Systems Ltd

01/25/18 / #20180022346

Vehicle control apparatus, distance calculation apparatus, and distance calculation method

Provided are a vehicle control apparatus, a distance calculation apparatus, and a distance calculation method capable of calculating a distance between a vehicle and an object even when the vehicle is stopped. A posture of the vehicle is changed while the vehicle is stopped and the distance to the object... Hitachi Automotive Systems Ltd

01/25/18 / #20180022379

Power steering device and control device therefor

Disclosed is a power steering device 1 having a control unit 33 equipped with an abnormality detection circuit 50. The abnormality detection circuit 50 is configured to judge the occurrence of an abnormality in the power steering device when a peak level Trp of a frequency component of a steering... Hitachi Automotive Systems Ltd

01/25/18 / #20180022381

Power steering device

Provided is a power steering device capable of causing control that uses a pump device and control that uses an electric motor on an input shaft to cooperate with each other. The power steering device includes a power cylinder including a pair of hydraulic chambers partitioned by a piston and... Hitachi Automotive Systems Ltd

01/25/18 / #20180023503

Control device for internal combustion engine

Provided is a control device for an internal combustion engine, the control device enabling the suppression of variations in the amount of fuel injected by injection while the boost voltage is charging, without offsetting the injection timing. A boost circuit (211) boosts a first voltage supplied from a battery (201),... Hitachi Automotive Systems Ltd

01/25/18 / #20180023563

Automatic transmission pump apparatus or pump apparatus

The present invention provides a pump apparatus capable of preventing or reducing deterioration of efficiency of a pump. The pump apparatus includes a venturi portion provided on the way along a discharge passage. The venturi portion includes a small diameter portion having a smaller inner diameter than an inner diameter... Hitachi Automotive Systems Ltd

01/25/18 / #20180023564

Variable displacement pump

A variable displacement pump includes: a pump constituting section; a movable member; a first control hydraulic chamber; a second control hydraulic chamber; a control mechanism arranged to be actuated by receiving a control hydraulic pressure which is the discharge pressure on a downstream side of the discharge portion, through a... Hitachi Automotive Systems Ltd

Patent Packs
01/25/18 / #20180023629

Propeller shaft

Disclosed is a propeller shaft including a shaft portion; a joint portion provided between the shaft portion and a rotating shaft; a sleeve portion provided at the joint portion and having an inner peripheral side for receiving therein the rotating shaft; a through hole formed through a circumferential range of... Hitachi Automotive Systems Ltd

01/25/18 / #20180023983

Physical quantity detection apparatus and electronic apparatus

A physical quantity detection apparatus 300 detects a plurality of physical quantities of gas 30 to be measured flowing in a main passage 124. The physical quantity detection apparatus 300 has a housing 302 disposed in the main passage 124, a circuit substrate 400 insert molded in the housing 302,... Hitachi Automotive Systems Ltd

01/25/18 / #20180026545

Electric power conversion device

An object of the present invention is to achieve reduction in height of an electric power conversion device while maintaining high performance of the electric power conversion device. An electric power conversion device according to the present invention includes: a first power semiconductor module, a second power semiconductor module, a... Hitachi Automotive Systems Ltd

01/18/18 / #20180015803

Vehicular pump apparatus and vehicular bracket

A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling... Hitachi Automotive Systems Ltd

01/18/18 / #20180016972

Actuator for link mechanism for internal combustion engine

Provided is an actuator for a link mechanism for an internal combustion engine, which is capable of improving a degree of freedom in layout while reducing the number of components. The actuator for a link mechanism for an internal combustion engine according to the present invention includes a rolling bearing... Hitachi Automotive Systems Ltd

01/18/18 / #20180016975

Actuator of variable compression ratio mechanism and actuator of link mechanism

An actuator of a variable compression ratio mechanism includes: a control link; an arm link; a control shaft; a housing including a receiving portion in which a connection portion between the second end portion of the control link and the arm link is received, and a support hole formed within... Hitachi Automotive Systems Ltd

01/18/18 / #20180017004

Knock detecting device

Provided is a knock detecting device capable of ensuring knock detection accuracy irrespective of fuel injection conditions even when a period during which injection-valve noise occurs overlaps with a knock determination period. An ECU 9 subjects signals output from a knock sensor, which detects vibrations of an internal combustion engine,... Hitachi Automotive Systems Ltd

01/18/18 / #20180017005

Drive device for fuel injection device

The purpose of the present invention is to provide a drive device that improves the precision of injection quantities by stabilizing the behavior of a valve body 214 under the condition that a valve body reaches a height position lower than a maximum height position and making the injection pulse... Hitachi Automotive Systems Ltd

01/18/18 / #20180017014

Piston for internal combustion engine

Disclosed is an internal combustion engine's piston with a piston head having first and second thinnest portions that are thinnest in thickness of the piston head. With respect to the center axis of the first and second pin holes for supporting the piston pin, the first and second thinnest portions... Hitachi Automotive Systems Ltd

01/18/18 / #20180017129

Cylinder apparatus

A cylinder apparatus is configured to compatibly achieve an increase in mechanical strength and a reduction in weight of a metal ring of an oil seal member used in the cylinder apparatus. A hydraulic shock absorber (1) as a cylinder apparatus has a rod guide (9) provided at one end... Hitachi Automotive Systems Ltd

01/18/18 / #20180017422

Thermal flow meter

The present invention provides a thermal flow meter 300 which reduces a stress applied from a fixing portion 3721, which is used to hold and fix a circuit package 400 with respect to a housing 302, to the circuit package 400 and has high reliability. In the thermal flow meter... Hitachi Automotive Systems Ltd

01/18/18 / #20180017631

Battery system monitoring apparatus

An object is to achieve management control of an assembled battery using an accurate measured value of a cell voltage. A battery system monitoring apparatus 10 that monitors and controls a battery system includes battery monitoring circuits 100 provided for respective cell groups 120. Each of the battery monitoring circuits... Hitachi Automotive Systems Ltd

01/18/18 / #20180017656

Electric current sensor

Provided is an electric current sensor with which it is possible to reduce errors arising between the true value of an alternating current and a current value inferred from a detection signal during detection of the alternating current by the electric current sensor. The electric current sensor is provided with... Hitachi Automotive Systems Ltd

01/18/18 / #20180018160

Software updating apparatus and software updating method

Provided is a software updating apparatus that can flexibly respond to various situations, including update capacity and use cases of each ECU, in a case of updating control information of a plurality of ECUs. Update control information necessary for update processing, including update data to be newly applied to an... Hitachi Automotive Systems Ltd

01/18/18 / #20180018164

Vehicle-mounted control device, program writing device, program generating device and program

The present invention provides a vehicle-mounted control device, a program writing device, a program generating device, and a program, which are capable of quickly and easily carrying out reprogramming. An ECU 300 is provided with: a microcomputer 301, an SRAM 302, a flash memory 303, and a communication device 305.... Hitachi Automotive Systems Ltd

01/18/18 / #20180019625

Stator for rotating electrical machine and rotating electrical machine

To improve the insulating reliability of a stator for a rotating electrical machine and the rotating electrical machine, the stator is provided with a winding having a molten metal junction, and covering material which covers the winding. The covering material has a bending part which bends to be partially in... Hitachi Automotive Systems Ltd

01/18/18 / #20180019663

Electric power conversion device

An electric power conversion device includes: an active circuit section emitting noises; an output-side filter circuit section; a chassis including a first space and a second space for housing the active circuit section and the filter circuit section respectively; and a base plate that is installed so as to cover... Hitachi Automotive Systems Ltd

01/18/18 / #20180019697

Motor control device

To provide a motor control device capable of properly compensating the fluctuation in inverter output voltage during a dead time. The motor control device is for an inverter including switching elements composing upper and lower arms to convert a direct-current voltage to an alternating-current voltage and apply the alternating-current voltage... Hitachi Automotive Systems Ltd

01/18/18 / #20180020558

Electronic control device

Provided is an electronic control device that is easily assembled and with which it is possible to reduce the effects of vibration and external force applied from a connector. Electronic components are installed on a substrate. A base covers a surface of the substrate. A cover covers a surface of... Hitachi Automotive Systems Ltd

01/11/18 / #20180009476

Power steering apparatus

A power steering apparatus includes: a first detection element arranged to sense a rotation angle of the first gear based on a variation of a magnetic field generated by the first magnetic member; a second detection element arranged to sense a rotation angle of the second gear based on a... Hitachi Automotive Systems Ltd

01/11/18 / #20180010545

Control device for fuel injection valve

The present invention determines whether multi-stage injection control is operating normally or abnormally, and carries out a failsafe of multi-stage injection control as necessary. The present invention, which solves the problem described above, has means such as the following. The invention is provided with fuel injection valves provided respectively to... Hitachi Automotive Systems Ltd

01/11/18 / #20180010547

Fuel injection valve, control device for fuel injection valve, and control method

The purpose of the present invention is to provide a control means which, with respect to injection control of a fuel injection valve, reduces deviation between an injection quantity of fuel injected by the fuel injection valve and a target value, the deviation being caused due to a pressure in... Hitachi Automotive Systems Ltd

01/11/18 / #20180010564

Fuel injection valve

In order to solve the above problems, a fuel injection valve according to the present invention includes a valve seat portion, a valve body which is seated on or separated from the valve seat portion, an injection hole which is formed on a downstream side from the valve seat portion,... Hitachi Automotive Systems Ltd

01/11/18 / #20180010645

Power transmission shaft

A power transmission shaft comprises a shaft unit interposed between first and second shafts; an engaged portion provided on one end of the second shaft and having an annular stepped part provided between a smaller diameter portion and a larger diameter portion; and an engaging portion provided on one end... Hitachi Automotive Systems Ltd

01/11/18 / #20180010665

Fluidic damper

The first piston body includes a first passage which has a first opening that opens to the first chamber on the coupling surface with the second piston body and extends in the axial direction, and a second passage which has a second opening on the coupling surface, extends in the... Hitachi Automotive Systems Ltd

01/11/18 / #20180013355

Power converter

An object of the present invention is to reduce wire inductance without damaging manufacturability of a power converter. A power converter according to the present invention includes a power semiconductor module, a capacitor, and DC bus bars and. The capacitor smooths a DC power. The DC bus bars and transmit... Hitachi Automotive Systems Ltd








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