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Cummins Inc
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Cummins Inc patents


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

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 new patent  Dual fuel architecture and cylinder bank cutout and increased gas substitution during light load conditions

The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets... Cummins Inc

Charge-flow adjustment in closed-loop exhaust temperature control on dual fuel engines

Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at... Cummins Inc

Nox sensor diagnostic for an exhaust aftertreatment system

A method for diagnosing NOx sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (SCR) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an... Cummins Inc

Apparatus and system for controlling power to an air conditioning compressor for a vehicle

The disclosure relates to a climate control system for use in on-highway semi-trucks and includes a rechargeable battery, an internal combustion engine which can be coupled or decoupled to a motor generator (MG), and an air conditioning compressor which can be coupled or decoupled to the MG or a second... Cummins Inc

Reductant injection in exhaust manifold

An aftertreatment system comprises a first passageway having a first temperature and a second passageway having a second temperature different than the first temperature. A turbine is disposed downstream from the first passageway and upstream from the second passageway. The turbine is in fluidic communication with the first passageway and... Cummins Inc

Waste heat recovery architecture for opposed-piston engines

A system includes an exhaust passage and a waste heat recovery system. The exhaust passage is structured to fluidly couple to an exhaust manifold of an engine, and to receive exhaust gas from the engine. The waste heat recovery system includes a working fluid circuit, a superheater, and an expander.... Cummins Inc

Exhaust manifold for a two-stage engine charge air system

An exhaust manifold is provided comprising a first log comprising a plurality of inlet segments each having a pair of inlet ports configured to receive exhaust gas from a pair of cylinders of an engine, a second log comprising a plurality of inlet segments each having a pair of inlet... Cummins Inc

Two-stage engine charge air system with branch conduits

A system is provided comprising an engine having a first cylinder bank and a second cylinder bank disposed in a VEE configuration, a first compressor configured to compress fluid to a first pressure, a first cooler coupled to the first compressor, the first cooler receiving the compressed fluid from the... Cummins Inc

Inlet diffusers for a two-stage engine charge air system

An aftercooler is provided comprising a housing, an outlet diverter coupled to the housing and having an outlet port, and an inlet diffuser comprising a forward wall having a peripheral rim coupled to the housing, an upper wall connected to the forward wall, a lower wall connected to the forward... Cummins Inc

Hybrid reefer systems

Hybrid power systems include an internal combustion engine and a motor/generator connectable with the engine. A reefer unit is configured to receive power from the motor/generator via a reefer power system that includes an export power inverter and an energy storage device.... Cummins Inc

Plugin-pod for electronic control unit

A ruggedized engine control module (ECU) system includes a plugin-pod, a connector configured to connect the plugin-pod to a connector of an ECU, and signal processing circuitry. The ruggedized ECU system further includes a ruggedized enclosure for the connector and the signal processing circuitry. The ruggedized enclosure is configured to... Cummins Inc

Turbomachine bearing assembly preloading arrangement

A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. The turbomachine has a first lubricating fluid slinger comprising a screw thread that is engageable with... Cummins Inc

Waste heat recovery integrated cooling module

Integrated cooling systems including a frame configured for mounting to a vehicle chassis in a path of ram air entering an engine compartment of a vehicle, a radiator connected to the frame in the ram air path, a waste heat recovery (WHR) condenser, a recouperator connected to the frame above... Cummins Inc

Jointed stall bar attachment

A torque transfer device is provided to transfer torque from a torque tool to a torque limiter device, the torque transfer device comprising a torque limiter connection member adapted for connection to the torque limiter device; a first joint; a second joint; and a tool connection member adapted for connection... Cummins Inc

Camshaft with low lift dwell profile and methods for operating the same

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders and at least one camshaft for opening at least one valve associated with the at least one cylinder. The camshaft includes a cam with a cam lobe defining a cam lobe profile having... Cummins Inc

Mode 7 push-pull structure with external pulse width modulator control

A circuit, comprising, a first high-side switch and a second high-side switch each receiving a source voltage, a first low-side switch and a second low-side switch, a first application specific integrated circuit (ASIC) connected to the first high-side switch and the first low-side switch, and a second ASIC connected to... Cummins Inc

Natural gas fuel system for an internal combustion engine

A natural gas fueling system supplies methane gas to an engine and includes a filter assembly. The filter assembly includes a gas inlet configured to receive inlet gas and a methane permeable filter configured to separate methane gas and first contaminant gases from the inlet gas. The natural gas fueling... Cummins Inc

Systems and methods for controlling fuel injection into a plurality of fuel rails

Fueling systems and methods are disclosed. Various fueling systems may comprise a single fuel pump configured to supply fuel to a first fuel rail at a first fuel pressure along a first fuel circuit and configured to supply fuel to a second fuel rail at a second fuel pressure along... Cummins Inc

Electric engine accessory control

A method of controlling electrically-powered vehicle accessories includes receiving energy data, the energy data providing an indication of an availability of free energy; receiving an electrically-powered vehicle accessory classification for an electrically-powered vehicle accessory, the classification including one of a critical and a discretionary electrically-powered vehicle accessory; receiving a prioritization... Cummins Inc

Systems and methods using a gas quality sensor

An apparatus includes an aggregation circuit and a calibration circuit. The aggregation circuit is structured to interpret fuel data indicative of a fuel composition of a fuel provided by a fuel source from a plurality of gas quality sensors. Each gas quality sensor is associated with an individual engine system.... Cummins Inc

Systems and methods for determining the composition of gaseous fuel

Disclosed are methods, systems, and computer-readable mediums for determining the composition of gaseous fuel. An initial gaseous fuel stream is provided that includes methane, non-methane hydrocarbons, and inert gases. Air is mixed into the initial fuel stream upstream of a first catalyst. The first catalyst oxidizes only the non-methane hydrocarbons... Cummins Inc

Systems and methods for reducing the oil volume and windage in fuel pumps

Systems and methods including spacers comprising a first face configured to engage with a cam shaft, a second face, and a third face operationally coupled to the first face and the second face, wherein the third face is configured to displace a lubricating fluid and permit rotation of the cam... Cummins Inc

Hybrid vehicle with low power battery

Systems, methods and apparatus for controlling operation a hybrid powertrain are disclosed that use low power storage and motor/generator components in line haul operations. In one embodiment, a line haul drive cycle includes a low power motor/generator executing a power assistance operation of the hybrid powertrain powered by electricity from... Cummins Inc

Two-part structural oil pan

An oil pan assembly including a first portion having an inner set of openings configured to receive a first set of fasteners to couple the first portion to an engine block and a second portion having an outer set of openings positioned laterally outward relative to the inner set of... Cummins Inc

Systems, methods, and operation of dual fuel engines

Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The... Cummins Inc

System and managing contaminant storage in a storage catalyst

An internal combustion engine system includes an engine and an aftertreatment system that is connected to the engine to receive an exhaust flow from the engine. The aftertreatment system includes a contaminant storage catalyst for storing contaminants produced by the engine during cold start and low temperature operating conditions, and... Cummins Inc

Method for reducing carbon/coke in fuel injectors in dual fuel applications

A method of reducing carbonaceous deposits on a fuel injector is provided in which a first fuel composition is supplied to the fuel injector in a dual fuel engine, the first fuel composition comprising natural gas fuel and a first percentage of diesel fuel; and a second fuel composition is... Cummins Inc

Gas quality virtual sensor for an internal combustion engine

Systems, methods and apparatus for controlling operation of an engine structured to combust gaseous fuel such as a dual fuel engine, including an estimation of key parameters dependent on natural gas quality, are disclosed. The natural gas quality parameters are estimated from natural gas properties obtained from various sensed parameters... Cummins Inc

Method and device to control exhaust gas recirculation

A method, a combustion engine controller, and a combustion engine incorporating the controller to implement the method are provided. The method includes determining a first dedicated exhaust gas recirculation (D-EGR) cylinder parameter value of a first D-EGR cylinder parameter associated with a first D-EGR cylinder of the combustion engine; and... Cummins Inc

Variable hole size nozzle and spray angle fuel injector and mhbib

A fuel injector, comprising a nozzle body having a proximal end and a distal end, an upper row of nozzle holes being equally spaced about a first circumference of the nozzle body, and a lower row of nozzle holes located between the distal end and the upper row of nozzle... Cummins Inc

Drive coupling for connecting drive shaft to output member

There is disclosed herein a drive coupling for connecting a drive shaft to an output member. The drive coupling includes a non-circular body portion defining a central rotational axis, a tang projecting axially from the body portion on the central rotational axis, and at least one through-hole extending through the... Cummins Inc

Exhaust aftertreatment thermal management controls

One exemplary embodiment is a method of operating a system comprising an internal combustion engine system, and an exhaust aftertreatment system comprising an SCR catalyst, and an electronic control system. The method comprises operating the electronic control system to perform the acts of determining a predicted temperature value indicative of... Cummins Inc

System and valve size ratio and igniter placement

An engine including a gaseous fuel system; a cylinder including a flat combustion face, the flat combustion face including four valves, each valve positioned in a port, the four valves including two intake valves positioned to selectively meter intake of charge into the cylinder via respective ports and including two... Cummins Inc

Methods and apparatuses for combustion diagnosis and control of internal combustion engines using accelerometers

Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining... Cummins Inc

Ventilation controls for dual-fuel engines

One exemplary embodiment is a system comprising a dual-fuel engine structured to selectably combust a first fuel type and a second fuel type, and an electronic control system in operative communication with the dual-fuel engine. The electronic control system is structured to control a transition of the dual-fuel engine from... Cummins Inc

07/20/17 / #20170204797

Techniques for controlling a dedicated egr engine

A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of... Cummins Inc

07/20/17 / #20170204799

Systems and methods for cylinder deactivation with deactivated cylinder pressure control

Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism that opens and closes the intake and exhaust valves during nominal engine operations. In response to engine operations indicating a cylinder deactivation condition, one or more the... Cummins Inc

07/13/17 / #20170197622

Communication interface for start-stop systems and methods

you and a Systems and methods for implementing a start-stop feature on a vehicle powered at least in party by an internal combustion engine are described. The method includes receiving, at an electronic control unit (“ECU”) of the vehicle, an indication that the vehicle is in line at a drive-thru.... Cummins Inc

07/06/17 / #20170191921

Systems and methods for reducing secondary emissions from catalyst components

System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate... Cummins Inc

07/06/17 / #20170191432

Systems and methods for adaptive acceleration based speed control

A method of controlling speed of an internal combustion engine is disclosed. The method includes receiving a load parameter input. The method also includes determining a requested speed demand and detecting a change in load based on the load parameter input. The method also includes determining a modified speed demand... Cummins Inc

07/06/17 / #20170191440

Fuel pressure control for engine fuel systems

An apparatus includes an input module structured to interpret a fuel pressure command indicative of a target fuel pressure within an accumulator and a target fuel injection characteristic, a pump module structured to control a pump assembly to provide fuel to the accumulator to maintain the target fuel pressure within... Cummins Inc

06/29/17 / #20170182680

Creation of injection molds via additive manufacturing

Methods of manufacturing an injection mold component are provided. The methods include printing a plurality of layers of a material into a near net shape mold of the injection mold component. The printing includes forming each layer in the plurality of layers upon another layer in the plurality of layers... Cummins Inc

06/22/17 / #20170175614

Gasoline compression ignition (gci) engine with dedicated-egr cylinders

The present disclosure provides a method comprising adjusting at least one of an air-to-fuel ratio and an ignition spark characteristic of a first cylinder of an engine to produce an exhaust gas comprising a predetermined quantity of hydrogen; and providing the exhaust gas from the first cylinder to a second... Cummins Inc

06/22/17 / #20170175586

Flow and pressure estimators in a waste heat recovery system

An apparatus includes a pump circuit structured to receive pump data indicative of an operating characteristic of a pump feeding a fluid to a waste heat recovery (WHR) system; a flow circuit structured to receive valve position data indicative of a position of a valve downstream of the pump, estimate... Cummins Inc

06/22/17 / #20170176280

Diagnosing cylinder pressure sensor gain and offset

An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine.... Cummins Inc

06/15/17 / #20170167454

Systems for fuel pump adapters and methods of using the same

A fuel pump includes a body portion housing a fuel pump assembly configured to receive a rotational input and generate fuel flows, a drive shaft extending into the body portion with a pump gear coupled to the drive shaft, and a pilot portion annularly disposed about the drive shaft adjacent... Cummins Inc

06/15/17 / #20170167473

Camshaft thrust control secured by drive gear

An apparatus and method of producing a pump including a housing and a cam received within the housing that is rotatable relative to the housing. The cam includes an axis of rotation. The pump further includes a retainer plate operable to abut the cam to restrict movement of the cam... Cummins Inc

06/15/17 / #20170169634

Diagnostic data visualization methods

An apparatus includes an aggregation circuit, an analysis circuit, and a data visualization circuit. The aggregation circuit is structured to receive at least one of (i) vehicle data indicative of a least one operating characteristic of one or more vehicles from the one or more vehicles and (ii) technician data... Cummins Inc

06/08/17 / #20170159599

System and control of volumetric efficiency in a direct injection engine

A system and method of inducing an operational response change in an operating direct-injection internal combustion engine is provided such that the engine includes a cylinder into which liquid fuel injection is directly performed. The method starts by operating the direct-injection engine using a start of injection (SOI) protocol. At... Cummins Inc

06/01/17 / #20170152781

System and method to improve aftertreatment in an internal combustion engine

A system and method are disclosed for improving the performance of an aftertreatment system by elevating its temperature above an activation temperature. According to at least one aspect of the present disclosure, the method includes injecting a quantity of a fuel into certain fueled cylinders of a plurality of combustion... Cummins Inc

06/01/17 / #20170152791

Air intake system for internal combustion engine

An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a... Cummins Inc

06/01/17 / #20170152794

Waste gate assembly

A waste gate assembly includes a waste gate conduit configured to receive exhaust gas. The waste gate conduit includes a first portion having a first inner diameter and a second portion having a second inner diameter and fluidly coupled to the upstream portion. The first inner diameter is less than... Cummins Inc

06/01/17 / #20170152820

Air intake system for internal combustion engine

An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a... Cummins Inc

05/25/17 / #20170145883

Forced air exhaust diffuser

Systems, methods and apparatus are disclosed that include an exhaust system and an air source external to the exhaust system that is configured to force additional air into the exhaust stream downstream of the engine and aftertreatment system to help mix cool air with the exhaust. The amount and timing... Cummins Inc

05/25/17 / #20170145935

Systems and methods to reduce torsional conditions in an internal combustion engine

An internal combustion engine includes a number of cylinders and a controller operably connected to interpret operating parameters related to the operation of the number of cylinders. A cylinder torque adjustment for each cylinder is determined from the operating parameters to provide a torque balancing response that reduces noise, vibration... Cummins Inc

05/25/17 / #20170145938

Mult-mode controls for engines systems including scr aftertreatment

An electronic control system is adapted to control a system including an internal combustion engine and an exhaust aftertreatment system including an SCR catalyst. The electronic control system provides a first dynamically determined weighting factor in response to performing a selected one of a plurality of calculations, determines an operating... Cummins Inc

05/18/17 / #20170137029

Systems and methods for idle coasting management of a vehicle having predictive cruise control

A system, method, and apparatus includes management of coasting during operation of a vehicle equipped with a predictive cruise control system.... Cummins Inc

05/18/17 / #20170138251

Pre-chamber nozzle

An engine includes a cylinder having an internal combustion chamber and extending longitudinally, a cylinder head coupled to the cylinder, and a fuel-fed pre-chamber positioned within a portion of the cylinder head. The pre-chamber includes a pre-chamber volume and plurality of nozzle holes extending from the pre-chamber volume. The engine... Cummins Inc

05/11/17 / #20170129492

Systems and methods for pre-hill cruise speed adjustment

A system, method, and apparatus includes management of cruise speed in anticipation of upcoming terrain changes. A cruise speed controller can be structured to predict a change in speed of vehicle in light of an upcoming terrain feature, and lead a change in reference speed to which the cruise speed... Cummins Inc

05/04/17 / #20170122175

Scr exhaust aftertreatment apparatus, system and methods including multiple washcoat formulations

Unique SCR catalyst including multiple washcoat formulations with differing performance characteristics are disclosed. One exemplary embodiment is an apparatus including a catalyst substrate defining a plurality of flow channels leading from an inlet to an outlet, a first washcoat composition distributed over a first portion of the flow channels, and... Cummins Inc

05/04/17 / #20170122226

Multi-pulse injection events for a dual-fuel engine

A method includes supplying a first quantity of a first fuel to an engine and supplying a charge including a second fuel and air to the engine. The first fuel is different from the second fuel. The method further includes mixing the first fuel with the charge, supplying a second... Cummins Inc

05/04/17 / #20170122232

Thermal management via exhaust gas recirculation

Methods and systems of recirculating exhaust gas in internal combustion engines are disclosed. An internal combustion engine includes a set of cylinders, an intake system disposed in fluid providing communication with the set of cylinders, an exhaust system disposed in fluid exchanging communication with the set of cylinders, and a... Cummins Inc

04/27/17 / #20170114688

Aftertreatment regeneration with variable time and temperature

A system includes an exhaust aftertreatment system operatively coupled to an engine. The exhaust aftertreatment system includes an exhaust aftertreatment component. A flow sensor is structured to provide an exhaust flow rate value of exhaust gas exiting the engine. A temperature sensor is structured to provide an exhaust temperature value... Cummins Inc

04/27/17 / #20170114690

Systems and methods to reduce reductant consumption in exhaust aftertreatment systems

Systems, apparatus and methods are provided for reducing reductant consumption in an exhaust aftertreatment system that includes a first SCR device and a downstream second SCR device, a first reductant injector upstream of the first SCR device, and a second reductant injector between the first and second SCR devices. NOx... Cummins Inc

04/27/17 / #20170114697

Systems and methods of an on-board nox monitor reset test

An apparatus includes a stationary conditions circuit structured to received information indicative of a stationary condition of a vehicle having an exhaust aftertreatment system; an engine circuit structured to cause an elevated operating mode in response to the detection of the stationary condition; and a nitrous oxide (NOx) monitor reset... Cummins Inc

Patent Packs
04/27/17 / #20170115666

Apparatus and grouping vehicles for cooperative driving

An apparatus includes an initial planning module, a tandem implementation module, and a scheduler module. The initial planning module is structured to interpret one or more fleet delivery requirements, assets, drivers, and vehicle descriptions. The tandem implementation module is structured to determine a travel schedule with respect to a first... Cummins Inc

04/13/17 / #20170101918

Fan cooled ignition coil method and apparatus

This disclosure provides an ignition coil for a spark ignited internal combustion engine. The ignition coil includes a coil body having an outer surface and internal windings coupled to a connector. The ignition coil also includes a housing surrounding the coil body. The housing has an outer wall spaced apart... Cummins Inc

04/13/17 / #20170101929

Engine configuration having various displacements

Various embodiments provide a method of varying engine displacement. The method includes determining a change in a stroke distance of the engine required to obtain a pre-determined volumetric change in a displacement of the engine. The method includes machining a top surface of a crankcase so as to remove a... Cummins Inc

04/13/17 / #20170101952

Idle engine operation based on vehicle cabin temperature

A method for operating an engine based on cabin temperature includes determining a quantity of fuel in a fuel tank, determining a minimum amount of fuel to remain in the fuel tank, receiving a predetermined cabin temperature value, calculating an engine idle time in response to the minimum amount of... Cummins Inc

04/13/17 / #20170101959

Regulation of fuel rail pressure using electronic fuel transfer pump in low pressure fuel circuits

Systems and related methods for regulating fuel rail pressure for internal combustion engines utilizing an electronic fuel transfer pump (eFTP) on the low side to provide robust control of fuel pressure on the high side. The eFTP is in fluid communication with a low-pressure fuel circuit for providing a low-pressure... Cummins Inc

04/13/17 / #20170102363

Systems and methods for estimating fuel type and fuel properties using sonic speed

Diagnostic systems including a pressure sensor, a determiner in communication with the pressure sensor, wherein the determiner is structured to estimate a sonic speed of a fuel based on identification of a fundamental oscillation frequency are disclosed. Also disclosed are diagnostic methods comprising receiving, by a pressure interpreter, a pressure... Cummins Inc

04/13/17 / #20170101027

Systems and methods for battery usage regulation for battery life protection

Methods, systems, and apparatus of managing the lifespan of a battery are disclosed herein. A method comprises interpreting age data indicative of a current age of a battery, interpreting usage data indicative of a current usage of the battery, comparing the age data to the usage data, and allocating a... Cummins Inc

03/30/17 / #20170089248

Exhaust aftertreatment housed between cylinder heads

An apparatus includes an internal combustion engine having a plurality of cylinders allocated between a first bank having a first cylinder head and a second bank having a second cylinder head. A medial space is defined between the first bank and the second bank. An exhaust system is in fluid... Cummins Inc

03/30/17 / #20170089273

Dual-fuel engine combustion mode transition controls

Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of... Cummins Inc

03/30/17 / #20170089314

Engine start/stop function management

A system and method for controlling automatic start/stop operations for an engine. While the engine is shutdown, operation of the engine may be automatically started upon expiration of a threshold time limit or in response to one or more adverse or deteriorated conditions of a power storage device, such as,... Cummins Inc

03/30/17 / #20170089426

Gear mechanism providing passive ratio switching

A gearbox includes a first shaft operatively coupled to an output of an engine, with the first shaft having a first longitudinal axis. A second shaft is operatively coupled to a driveshaft of an electric machine, the second shaft having a second longitudinal axis. The second longitudinal axis is non-coaxial... Cummins Inc

03/30/17 / #20170089274

System, method, and driver optimization

The systems, methods, and apparatuses provided herein disclose interpreting a performance criteria for a vehicle, wherein the performance criteria is indicative of a desired operating parameter for the vehicle; interpreting a good driver definition value indicative of a good driver profile for the interpreted performance criteria; determining a performance value... Cummins Inc

03/23/17 / #20170080945

Intelligent coasting management

Methods of operating internal combustion engines are provided. A controller detects a coasting event while an associated vehicle is in motion. In response to the coasting event, the controller directs at least a portion of an exhaust gas output by an exhaust system of an internal combustion engine of the... Cummins Inc

03/23/17 / #20170080919

Systems and methods of engine stop/start control of an electrified powertrain

Systems, apparatuses, and methods disclosed provide for receiving internal information, external static information, and external dynamic information of a hybrid vehicle, and selectively enable or disable a stop/start function for the engine of the hybrid vehicle based on the internal hybrid vehicle information, external static information, and external dynamic information.... Cummins Inc

03/16/17 / #20170074185

Cylinder deactivation for catalyst drying

An engine control system and method of controlling an engine system are provided. The engine control system includes at least one sensor module configured to generate an exhaust condition signal based on a determined condition in an exhaust component and a cylinder bank control module communicatively coupled to the at... Cummins Inc

Patent Packs
03/16/17 / #20170074201

Multi-fuel engine controls including multi-factor cost optimization

One exemplary embodiment is a system comprising a multi-fuel engine structured to selectably combust varying proportions of a first type of fuel and a second type of fuel, and an electronic control system structured to control the provision of at least one of the first type of fuel and the... Cummins Inc

03/09/17 / #20170066427

System and diagnosing failures in brake systems and discrete vehicle inputs

A device includes at least one of a brake position sensor operationally coupled to a brake and providing a brake position signal, or a clutch position sensor operationally coupled to a clutch and providing a clutch position signal. The device further includes a controller having a communication module structured to... Cummins Inc

03/02/17 / #20170058729

Cooling assembly for a filter head of an engine

A filter head of an engine includes a conduit extending along a longitudinal axis and a thermostat extending longitudinally within the conduit. The thermostat is movable between an open position and a closed position. The filter head also includes a sealing member positioned within the conduit downstream from the thermostat.... Cummins Inc

03/02/17 / #20170058755

Electrically driven cooling system for vehicular applications

Some exemplary embodiments include an electrically driven cooling system for cooling non-engine components of a vehicle. The electrically driven cooling system includes a closed loop coolant flowpath including an electrically driven coolant pump and a radiator connected to the closed loop coolant flowpath, and one or more components connected in... Cummins Inc

02/23/17 / #20170050631

Engine start/stop control system and method

The present disclosure provides an engine stop/start control system for a vehicle comprising a first engine restart module configured to set a restart frequency and duration of an engine in response to a sensed ambient temperature, a second engine restart module configured to control the engine in response to a... Cummins Inc

02/23/17 / #20170051686

Modulated valve timing to achieve optimum cylinder pressure target

A system includes an engine and a controller in operative communication with the engine. Engine operating conditions are determined. At least one engine operating condition is determined. Based on the determined at least one engine operating condition, brake-specific fuel consumption is determined for each of a plurality of candidate cylinder... Cummins Inc

02/23/17 / #20170051713

Nozzle combustion shield and sealing member with improved heat transfer capabilities

An injector combustion shield assembly comprising a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; and a valve positioned between the fluid jacket and the fluid... Cummins Inc

02/23/17 / #20170051654

Diagnostic methods for a high efficiency exhaust aftertreatment system

An apparatus includes a nitrogen oxide (NOx) module and a selective catalytic reduction (SCR) diagnostic module. The NOx module is in exhaust gas communication with an exhaust flow of an exhaust aftertreatment system from an engine. The NOx module is structured to interpret NOx data indicative of an amount of... Cummins Inc

02/16/17 / #20170043757

Mild hybrid powertrain controls

Mild hybrid powertrain controls and apparatuses, methods and systems including the same are disclosed. One exemplary embodiment is a mild-hybrid system comprising an engine, an electrical machine, power electronics, an energy storage system, and an electrical load. The system includes a controller structured to receive an electrical machine power command... Cummins Inc

02/16/17 / #20170043776

Active acceleration limit management and gear shift scheduling based on driving environment

A system and method for controlling performance of a vehicle engine by sensing and/or accessing data regarding the driving environment and adjusting at least one of an engine output torque limit and a shifting schedule for the vehicle based on the sensed data.... Cummins Inc

02/16/17 / #20170043777

Systems and methods for controlling a vehicle equipped with start-stop logic in response to vehicle mass and route grade

Controls for improved drivability of a vehicle equipped with start/stop logic are disclosed. A nominal control stop for the internal combustion engine of the vehicle is disabled or prevented from occurring in response to a vehicle mass and route grade indicating a roll back condition for the vehicle exists if... Cummins Inc

02/16/17 / #20170044999

Cooperative cam phaser and air throttle control

Methods and apparatus relate to air handling for an internal combustion engine system, particularly utilizing premixed air and fuel. The engine system includes an intake air throttle (IAT) having a position set in response to the engine speed and a variable valve timing module having an intake valve timing set... Cummins Inc

02/16/17 / #20170045023

Fuel cooled injector tip

A fuel injector is provided comprising an outer housing, a nozzle housing disposed within the outer housing, a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source, and a circumferential gap in flow communication with the flow path... Cummins Inc

02/09/17 / #20170036528

Electric machine with variable torque drive

Electric machine assemblies and methods of manufacturing and operating electric machine assemblies for internal combustion engines are provided. The electric machine assembly includes an electric machine configured to generate electric current by induction via a prime mover causing rotation of one of a rotor and a stator with respect to... Cummins Inc

02/09/17 / #20170037758

Ammonia sensor control, with nox feedback, of an scr aftertreatment system

An exemplary method includes determining an NH3 reference target in an exhaust conduit between a first SCR catalyst and a second SCR catalyst. The method includes determining a present amount of NH3 in the exhaust conduit between the first SCR catalyst and the second SCR catalyst, and determining an NH3... Cummins Inc

02/09/17 / #20170037777

System and optimizing the integration of engines and vehicle driveline retarders

A coolant diverter system and method of controlling coolant flow are provided. The coolant diverter system includes a coolant diverter body having a coolant inlet opening, a driveline retarder outlet opening and a bypass outlet opening. The coolant diverter system also includes a valve positioned in the coolant diverter body.... Cummins Inc

02/09/17 / #20170037809

Pressure controlled dynamic seal with captured fluid transfer tubes

A system and method for fluidly sealing a cylinder head interface between an engine block and a cylinder head of an internal combustion engine. An example apparatus includes a perimeter seal disposed on an outer periphery of the cylinder head. The perimeter seal has a first surface to abut a... Cummins Inc

02/02/17 / #20170028988

Method and system for controlling operation of an engine powered device having cyclical duty cycles

A method of controlling operation of a powered device is provided, comprising determining whether the device is experiencing a cyclical load profile including high load conditions and low load conditions, applying a first power component to the device using an engine, the first power component corresponding to an average power... Cummins Inc

01/26/17 / #20170022952

Two stage valve with conical seat for flow shut-off and spool knife edge for metering flow control

A valve (100) comprises a barrel (104) having a central bore (110), an inlet (112), and an outlet (114, 116), and a spool (120) disposed for motion within the central bore, including a ball tip (128), a metering edge (130), and a bore (132). The spool is moveable between a... Cummins Inc

01/26/17 / #20170024943

System and service assessment

Systems, apparatuses, and methods disclosed provide for service assessment. The method includes receiving at least one fault code of an engine control unit (ECU); determining at least one root cause based on the at least one fault code of the ECU; determining an estimated labor time for fixing the at... Cummins Inc

01/12/17 / #20170009671

Cylinder pressure based control of dual fuel engines

Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.... Cummins Inc

01/12/17 / #20170008514

Power regeneration optimization in a hybrid vehicle

A hybrid controller unit includes a detection module, a gear-hold module, a gear-skip module, and an optimizing module. The detection module is structured to detect a deceleration event. The gear-hold module is structured to determine whether a certain gear of a transmission should be maintained for a certain period of... Cummins Inc








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