Gm Global Technolgoy Operations, Inc.

Delco Electronics Corporation

Robert Charles Simon, Jr

Christopher E Whitney

Leonard G Wozniak

David C Poirier

Todd R Shupe

Jeffrey M Kaiser

Ning Jin

Joseph M Tolkacz

Peter M Medich

Paul Alan Bauerle

William R Cawthorne

Michael Livshiz

David J Stroh

Richard B Jess

Richard A Marsh

Vivek Mehta

John L Lahti

Cheryl A Williams

Jun Lu

George C Mitchell

Donovan L Dibble

Mark Henry Costin

Jon C Miller

Charles Henry Folkerts

Scott Joseph Chynoweth

Birendra P Bhattarai

Mario Vincent Maiorana, Jr

Emil Ritzen

Robert J Schaller

John C Haraf

George T Stephens

James T Purcell

Steven Joseph Swantick

Thomas Magnusson

Richard C Mamolen

Magnus Wall

Dennis D Thompson

Gerald J Wroblewski

Mark T Matheny

Anthony H Heap

Kerfegar Khurshed Katrak

Allen B Rayl, Jr

Igor Anilovich

William Leonard Aldrich, Iii

David S Mathews

James L Worthing

Daniel G Brennan

Mark D Carr

John W Siekkinen

Joseph R Dulzo

John Norman Stockbridge

Louis A Avallone

Robert J Genslak

Adam J Heisel

Douglas J Babcock

Gary Arthur Nichols

Craig Michael Sawdon

Klaus Pochner

Eric B Ferch

Alfred E Spitza, Jr

Kevin J Storch

Etsuko Muraji Stewart

Grant William Brady

Ronald W Van Diepen

Edward Stuteville

Daniel B O'Connell

Jaehak Jung

Jon C Wasberg

Weixin Yan

Kirk A Bailey

Jeffry A Helmick

Michael S Emmorey

Patrick J Westphal

Helmut Oswald

Harold M Martin

William Joseph Bolander

Gary J Brand

Richard M Backman

Christopher A Gillanders

Enrico Tropschug

Peter Jarzyna

Dale L Phillips

Charles M Grimm

Robert S Wickman

Douglas J Tackitt

Douglas W Menck

Dale W Deutscher

Robert C Cameron

William G Polom

Mats A Reimark

Edward G Himes

Janet M Koch

Xuan Dung T Avallone

John A Calkins

Meera Raja

An engine control system comprises an air control module and a spark control module. The air control module controls a throttle valve based on a first desired torque when the throttle valve is in an operable state. The spark control module controls spark advance based on the first desired torque and a second desired torque when the throttle valve is in a fault state. The throttle valve is maintained in a predetermined fault position when in the fault state.

Cooridnated torque control operation with de-energized throttle

A method of regulating a torque output of a vehicle powertrain includes generating a plurality of torque requests and associating each of the plurality of torque requests with one of a plurality of arbitration domains to form torque request sets associated with each of the plurality of arbitration domains. A first torque request set is arbitrated within a first of the plurality of arbitration domains to provide a first torque request. The first torque request is introduced into a second torque request set associated with a second of the plurality of arbitration domains. The second torque request set is arbitrated within the second arbitration domain to provide a second torque request. A torque source is regulated based on the second torque request.

Torque control arbitration in powertrain systems

A torque estimation system for a vehicle comprises an operating parameter module, a torque estimation module, and an estimation control module. The operating parameter module determines an estimated engine operating parameter based on engine speed. The torque estimation module estimates engine torque based on the engine speed and the estimated engine operating parameter. The estimation control module provides a plurality of engine speeds to the operating parameter module and the torque estimation module to determine estimated engine torque as a function of engine speed.

Use of torque model at virtual engine conditions

A hybrid controller for controlling a hybrid vehicle is set forth. The hybrid vehicle has an engine, an electric motor and an engine controller determining a crankshaft torque. The hybrid controller includes an optimization module determining an electric motor torque, determining an engine torque and communicating the engine torque from the hybrid controller to the engine controller. The hybrid controller also includes a motor control module controlling the electric motor based on the electric motor torque.

Method and system for controlling a hybrid vehicle

An engine control system includes an air control module, a spark control module, and a reserves module. The air control module controls a throttle valve of an engine based on an adjusted predicted torque request. The spark control module controls spark timing of the engine based on an adjusted immediate torque request. The reserves module determines an arbitrated reserve based on a maximum one of a minimum reserve and an additive reserve sum. The reserves module also generates the adjusted predicted torque request based on a sum of an arbitrated predicted torque request and a requested reserve, wherein the requested reserve is based on the arbitrated reserve.

Method and apparatus for arbitrating torque reserves and loads in torque-based system

A minimum torque module selectively determines a first minimum propulsion torque based on second and third minimum propulsion torques when a torque converter clutch is in unlocked and locked states, respectively. A zero pedal torque module selectively sets a zero pedal torque equal to the first minimum propulsion torque. A pedal request module determines a pedal torque request based on an accelerator pedal position, a vehicle speed, and the zero pedal torque. A driver request module determines a driver axle torque request based on the pedal torque request. A shaping module selectively shapes the driver axle torque request into a shaped driver axle torque request. A conversion module converts the first minimum propulsion torque into a minimum axle torque. A final driver request module sets a final driver axle torque request equal to a greater of the shaped driver axle torque request and the minimum axle torque.

Driver torque request systems and methods

A method of torque-based control for an internal combustion engine may include determining a desired airflow rate into an intake manifold of the internal combustion engine during an engine start condition, determining a torque limit for a torque-based engine control module based on the desired airflow rate, and regulating engine torque based on the determined torque limit.

Airflow-based crank throttle control in a torque-based system

A reserve torque system comprises a first module and a reserve torque module. The first module generates a first signal a predetermined period before an equivalence ratio (EQR) of an air/fuel mixture supplied to an engine is transitioned from a non-lean EQR to a lean EQR. The reserve torque module creates a reserve torque between when the first signal is generated and when the EQR is transitioned to the lean EQR.

Reserve torque for lean equivalence ratio requests

An engine control system comprises a pedal torque determination module, a driver interpretation module, and an actuation module. The pedal torque determination module determines a zero pedal torque based on a desired engine torque at a zero accelerator pedal position and a minimum torque limit for an engine system. The driver interpretation module determines a driver pedal torque based on the zero pedal torque and an accelerator pedal position. The actuation module controls at least one of a throttle area, spark timing, and a fuel command based on the driver pedal torque.

Method to include fast torque actuators in the driver pedal scaling for conventional powertrains

An engine control system comprises a clutch cut off enable module and a torque control module. The clutch cut off enable module generates an enable signal based on a clutch engagement signal and an accelerator pedal signal. The torque control module reduces a spark advance of an engine to a minimum value and disables fueling of cylinders of the engine based on the enable signal. The minimum value is a minimum allowed spark advance for current engine airflow.

Torque based clutch fuel cut off

A powertrain control system for a vehicle includes a plurality of axle torque request modules that generate respective axle torque requests based on respective performance criteria of a vehicle, an axle torque arbitration module that generates a net axle torque request based on the plurality of axle torque requests, a plurality of propulsion torque request modules that generate respective propulsion torque requests based on respective performance criteria of an engine of the vehicle, a propulsion torque arbitration module that determines a net engine torque request based on the net axle torque request and the plurality of propulsion torque requests, and a propulsion torque control module that controls a plurality of actuators based on the net engine torque request such that the engine produces an output torque in accordance with the net engine torque request.

Association of torque requesting modules in a coordinated torque architecture

An engine control module comprises a torque control module, an engine speed (RPM) control module, and an actuator module. The torque control module determines a first desired torque based on a requested torque. The RPM control module selectively determines a second desired torque based on a desired RPM. The torque control module determines the first desired torque further based on the second desired torque when the engine control module is transitioning from an RPM control mode to a torque control mode. The RPM control module determines the second desired torque further based on the first desired torque when the engine control module is transitioning from the torque control mode to the RPM control mode. The actuator module controls an actuator of an engine based on the first and second desired torques.

RPM to torque transition control

An engine control system includes an oxygen (O) sensor diagnostic module that diagnoses an Osensor and requests a minimum air per cylinder (APC). A throttle actuator module controls a throttle to adjust a mass air flow based on the minimum APC.

Post oxygen sensor performance diagnostic with minimum air flow

A method and system for regulating a drive torque provided to a driveline of a vehicle includes monitoring an accelerator pedal position and a brake pedal position. An adjusted accelerator pedal position is determined based on the accelerator pedal position and the brake pedal position and a drive torque request is determined based on the adjusted accelerator pedal position. Drive torque is generated based on the drive torque request.

Accelerator/brake pedal management for torque-based engine control

A cold-start control system for an internal combustion engine includes a heat estimation module, a torque request module and a propulsion torque determination module. The heat estimation module determines an exhaust system temperature and estimates heat required to heat an exhaust system to a predetermined temperature. The torque request module generates a torque request based on the estimated heat. The propulsion torque determination module determines a desired engine torque based on the torque request.

Cold start emission reduction strategy for coordinated torque control systems

Growing community of inventors

Brighton, MI, United States of America

Robert Charles Simon, Jr