Cummins Inc.

Gm Global Technolgoy Operations, Inc.

Cummins Ip, Inc.

Ford Global Technolgoies, LLC

David J Stroh

Samuel C Geckler

Anthony Kyle Perfetto

Carlos Alcides Lana

Govindarajan Kothandaraman

Karthik Kappaganthu

J Steven Kolhouse

Adrian P Dale

Marten H Dane

Ryan Edward Schultz

Robert Charles Simon, Jr

Leonard G Wozniak

Karim Abdoul Azizou

Thomas M Yonushonis

Adam C Cecil

Charles Henry Folkerts

Leon A LaPointe

Daniel J Mohr

Robin J Bremmer

Steven J Kolhouse

Kartavya Neema

Shashank Tamaskar

Akash S Desai

Benjamin L Olivas

Douglas Sprunger

Vivek Anand Sujan

James Michael Kerns

Christopher E Whitney

William R Cawthorne

Michael Livshiz

Charles Solbrig

J Stephen Wills

Michael B Viola

Robert J Thomas

Scott Joseph Chynoweth

Ying Yuan

Jeffrey A Matthews

Daniel J O'Connor

Craig M Calmer

Zachary Schwab

Anshul Shambhav

Richard S Fox

Ryo Fuchinoue

Rohit Zope

Karthik Kappanganthu

Anshul Shambav

Kent Krajewski

An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler ('CAC'), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.

Engine intake air system including CAC bypass and separate bypass heater, and high-efficiency spark-ignited direct injection liquid propane engine architectures including same

One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors structured to inject fuel into the dedicated EGR cylinder and the non-dedicated EGR cylinder, and an electronic control system operatively coupled with the fueling system and the ignition system. The electronic control system is configured to evaluate engine operating parameters including an engine load and an engine speed. The electronic control system is responsive to variation of the engine operating parameters to control operation of the fueling system to vary combustion in the at least one dedicated cylinder between rich of stoichiometric and stoichiometric.

Techniques for improving fuel economy in dedicated EGR engines

Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary EGR cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the amount of recirculated exhaust gas in a charge flow in response to EGR fraction deviation conditions.

Systems and methods for controlling EGR flow during transient conditions

One embodiment is a system comprising an internal combustion engine having one or more non-dedicated cylinders and one or more dedicated EGR cylinders configured to provide EGR to the engine via an EGR loop, a first spark plug coupled to each of the one or more non-dedicated cylinders, and a second spark plug coupled to each of the one or more dedicated EGR cylinders, wherein the second spark plug has a physical or dimensional characteristic that is different from the first spark plug. In certain forms each of the non-dedicated cylinders has only one of a first type of spark plug and each of the dedicated EGR cylinders has only one of a second type of spark plug. One or more of the characteristics that may vary between the first and second types of spark plugs include spark gap, electrode diameter, heat range, and ion sensing capability.

Spark plug configurations for dedicated-EGR engines

A system for diagnosing engine braking performance of an engine comprising a plurality of cylinders comprises an exhaust manifold pressure sensor configured to detect an exhaust manifold pressure corresponding to exhaust gas emitted from a plurality of cylinders. A controller is configured to determine an exhaust manifold pressure value corresponding to at least one cylinder of the plurality of cylinders that is being used for engine braking, from an exhaust manifold pressure sensor signal received from the exhaust manifold pressure sensor. The controller is also configured to determine an engine braking value based on the exhaust manifold pressure value.

Systems and methods for engine brake diagnostics and control

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 some point during operation, it is determined that a change is desired for a first parameter of engine operation that is at least partially a function of a charge provided to the cylinder (such as the torque output). In response an operational response in the engine is induced by altering the SOI protocol via a first SOI alteration that alters the volumetric efficiency of the cylinder and changes the first parameter.

System and method for control of volumetric efficiency in a direct injection engine

An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves. The internal combustion engine uses vacuum braking and/or compression release braking in response to one or more braking conditions.

Vacuum and compression release braking in spark-ignited engines

A system for controlling combustion misfire in an engine comprising a plurality of cylinders, at least a portion of the plurality of cylinders receiving recirculated exhaust gas, comprises a controller structured to detect a combustion misfire in at least one of the cylinders of the plurality of cylinders. The controller is configured to retard a spark timing of at least the portion of the plurality of cylinders after a time delay.

Engine control based on combustion misfire of exhaust gas recirculation cylinder

A internal combustion engine system includes a gasoline internal combustion engine having a set of donor cylinders and a set of non-donor cylinders. The donor cylinders provide a proportion of the exhaust gas to an exhaust gas recirculation system and the remainder of the exhaust gas to an exhaust gas aftertreatment system including a particulate filter. The non-donor cylinders also provide exhaust gas to exhaust gas aftertreatment system. An engine controller can determine whether the particulate filter needs regeneration, and in response, retard a spark timing of the non-donor cylinders by an amount that is different from an amount or retardation of the donor cylinders.

Regeneration of gasoline particulate filters

The present disclosure relates to a system for managing engine output that includes a machine manager module and a combustion module. In one embodiment, the combustion module includes a slow response pathway and a fast response pathway. The slow response pathway includes managing air and fuel actuators and the fast response pathway includes managing spark timing. According to one embodiment, managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control and involves sacrificing engine efficiency for engine responsiveness. Further, the fast response pathway may be selectively enabled based upon an optimization index.

Arbitration strategy for slow response and fast response torque requests

Growing community of inventors

Columbus, IN, United States of America

David J Stroh