Gm Global Technolgoy Operations, Inc.

Cheryl A Williams

Christopher E Whitney

Robert Charles Simon, Jr

Michael Livshiz

Ning Jin

Birendra P Bhattarai

John L Lahti

Vivek Mehta

Anthony H Heap

Paul Alan Bauerle

William Conrad Albertson

William R Cawthorne

Jeffrey M Kaiser

Richard B Jess

James L Worthing

Rafat F Hattar

Leonard G Wozniak

Todd R Shupe

Robert J Genslak

Joseph E Ploucha

Krishnendu Kar

Mike M Mc Donald

Timothy John Hartrey

Douglas J Babcock

Craig Michael Sawdon

Eric B Ferch

Etsuko Muraji Stewart

R Travis Schwenke

Jinchun Peng

Christopher R Graham

Bruce A Rogers

Edward Stuteville

James B Nicholson

Steven G Bryde

Natalie Ann Wienckowski

Jon C Wasberg

Robert Francis Semrau

Michael S Emmorey

Matthew M Manning

Jacob Andrew Gerrit Kuiper

In exemplary embodiments, methods, systems, and vehicles are provided, with the vehicle including vehicle systems, a communication bus, a first processor, and a communication bus transceiver. The first processor is configured to at least facilitate: determining whether a potential safety concern is present pertaining to control the vehicle systems; and providing communications along the communication bus of the vehicle, the communications including an indication of the potential safety concern. The communication bus transceiver is coupled to the first processor and configured to at least facilitate: recognizing the indication of the potential safety concern; and inhibiting the control for the vehicle systems when the indication of the potential safety concern is recognized by the communication bus transceiver.

Eliminatinon of safety enable hardware through use of can transceiver wakeup functions

A vehicle control module is provided and includes a hybrid memory and a processor. The hybrid memory includes: application memory that stores application code; boot memory that stores a first RMTS code, where the first RMTS code includes first risk functions; and ETM that temporarily stores a second RMTS code. The second RMTS code includes second risk functions. The processor: based on an operating mode of the vehicle control module, executes the application, first RMTS and second RMTS codes; erases the ETM prior to installation of the vehicle control module in a vehicle or delivery of the vehicle; and based on the first RMTS code, permits execution of the first RMTS code prior to and subsequent to installation of the vehicle control module in the vehicle and the second RMTS code prior to installation of the vehicle control module in the vehicle or delivery of the vehicle.

Resident manufacturing test software based system for mitigating risks associated with vehicle control modules

An engine control system includes a mode selection module that is configured to select an operating mode from one of an open loop control mode, a torque control mode, and a speed control mode based on an engine speed and a driver input. An axle torque arbitration (ABA) module generates ABA predicted and immediate torque requests based on the driver input. A speed control (SC) module generates a first set of SC predicted and immediate torque requests based on engine speed. A propulsion torque arbitration (PTA) module generates PTA predicted and immediate torque requests based on one of the ABA predicted and immediate torque requests and the first set of SC predicted and immediate torque requests based on the operating mode. A torque output control module controls output torque of an engine based on the PTA predicted and immediate torque requests.

Speed control systems and methods for internal combustion engines

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 of a vehicle comprises a reserves module and a fault diagnostic module. The reserves module controls airflow into an engine based on a driver torque request, increases the airflow into the engine when a reserve torque request is received, and outputs a torque output command for the engine based on the driver torque request. The fault diagnostic module selectively diagnoses a fault in the reserves module when the torque output command is greater than a sum of the driver torque request, a predetermined torque, and a load applied to the engine.

Engine torque reserve system diagnostic systems and methods

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

A coordinated torque control (CTC) system is provided that includes an engine capacity module, a multi-pulse enable module, and a catalyst light off torque reserve module. The engine capacity module determines a torque capacity of an engine and generates a maximum engine torque capacity signal. The multi-pulse enable module enables a multi-pulse mode that includes the injection of at least two pulses of fuel into a cylinder of the engine during a combustion cycle. The multi-pulse enable module generates a multi-pulse desired signal to operate in the multi-pulse mode based on the maximum engine torque capacity signal, a catalyst light off signal, and a brake torque request signal. The catalyst light off torque reserve module generates a torque reserve corrected signal based on the multi-pulse desired signal.

Multi-pulse enable determination and transition control systems and methods

A method of operating an engine control system includes reducing pressures within cylinders of an engine based on an auto start command signal including: receiving a torque request signal; calculating a powertrain output torque; and controlling air flow to the engine based on the powertrain output torque. During a startup of the engine: electric motor torque is increased to a predetermined level and reduced to increase a current speed of the engine; combustion torque of the engine is activated and increased after the current speed is within a predetermined range and a manifold absolute pressure is less than a predetermined level; and the electric motor torque is increased based on a crankshaft output torque signal to increase a crankshaft output torque subsequent to the reducing of the electric motor torque and while performing the activating of the combustion torque.

Hybrid vehicle auto start systems and methods

An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.

Managing lean air/fuel transients in coordinated torque control

A diagnostic system that detects a faulty lifter oil manifold assembly solenoid includes a current measurement module, a time delay module, a voltage measurement module, and a diagnostic module. The current measurement module measures current flowing through the solenoid when a trigger signal is enabled. The time delay module determines a time delay based on the measured current. The voltage measurement module measures a supply voltage that powers the solenoid. The diagnostic module determines whether the solenoid is faulty based on the time delay and supply voltage.

Faulty lifter oil manifold assembly solenoid diagnostic system

A diagnostic apparatus is suitable for use in an automobile controller and includes a power supply terminal conducting a reference voltage, a sampling circuit and a reference voltage diagnostic circuit. The sampling circuit is coupled to the power supply terminal and has an output terminal for providing sampled values of the reference voltage. The reference voltage diagnostic circuit has an input terminal coupled to the output terminal of the sampling circuit. The reference voltage diagnostic circuit maintains a historical value of the reference voltage over a predetermined time period, compares a current sampled value of the reference voltage to the historical value, and indicates a fault in the reference voltage in response to the current sampled value being different from the historical value by more than a predetermined threshold.

Reference voltage diagnostic suitable for use in an automobile controller and method therefor

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Howell, MI, United States of America

Cheryl A Williams