Gregory M Matthews

US Patent:

6585621, Jul 1, 2003

Filed:

May 3, 2001

Appl. No.:

09/847080

Inventors:

Gregory Paul Matthews - West Bloomfield MI
Charles Henry Folkerts - Troy MI
Jeffrey James Allen - Brighton MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16H 5924

US Classification:

477115, 477 21, 123198 F

Abstract:

A vehicle control system includes a variable displacement internal combustion engine, a transmission coupled to the variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a throttle coupled to the intake manifold, an engine controller for controlling the throttle and the variable displacement internal combustion engine, and a transmission controller for controlling the transmission. The engine controller transfers a throttle position or load value to the transmission controller. This throttle position or load value is independent of the actual displacement of the variable displacement internal combustion engine.

US Patent:

6615804, Sep 9, 2003

Filed:

May 3, 2001

Appl. No.:

09/847106

Inventors:

Gregory Paul Matthews - West Bloomfield MI
Charles Henry Folkerts - Troy MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 4304

US Classification:

123481, 123399, 12340623, 123198 F

Abstract:

An engine control system including a variable displacement internal combustion engine, a plurality of cylinders located in the internal combustion engine, a plurality of fuel injectors for providing fuel to the plurality of cylinders, a plurality of valves coupled to the plurality of cylinders, the plurality of valves controlling the air flow in and out of the cylinders, an actuation apparatus for actuating the plurality of valves, an intake manifold coupled to the internal combustion engine, a throttle coupled to the intake manifold, a controller electronically coupled to the fuel injectors, an accelerator pedal position sensor electronically coupled to the controller, and where the controller determines the number of the cylinders to provide with fuel and air and a desired engine output torque based on at least the accelerator pedal position sensor and the controller controls the throttle to control the amount of air entering the intake manifold, where the controller is capable of eliminating torque disturbances upon changes in displacement of the engine.

US Patent:

6736108, May 18, 2004

Filed:

May 16, 2002

Appl. No.:

10/150640

Inventors:

Allen B. Rayl - Waterford MI
William R. Aro - Detroit MI
Gregory Paul Matthews - West Bloomfield MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 1702

US Classification:

12340623, 123198 F, 12340647, 123481

Abstract:

An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller varies the spark for a reactivating cylinder during the transition from deactivation to reactivation.

US Patent:

6760656, Jul 6, 2004

Filed:

May 17, 2002

Appl. No.:

10/150900

Inventors:

Gregory Paul Matthews - West Bloomfield MI
Charles Henry Folkerts - Troy MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

G06F 1900

US Classification:

701101, 123480, 123481, 701102, 701103

Abstract:

A control method and system according to the present invention for a displacement on demand engine estimates cylinder air charge and/or predicts cylinder air charge for future cylinder interrupts. A model is provided that estimates cylinder air charge and/or predicts cylinder air charge for future cylinder interrupts. The model includes a history vector of inputs and states. The history vector of inputs and states are updated when a cylinder firing interrupt occurs. An operating mode of the engine is determined. Based on the operating mode, model parameters and model inputs are selected. The cylinder air charge is estimated and predicted for future cylinder interrupts.

US Patent:

6769403, Aug 3, 2004

Filed:

May 17, 2002

Appl. No.:

10/150879

Inventors:

Allen B. Rayl - Waterford MI
Gregory Paul Matthews - West Bloomfield MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02P 500

US Classification:

12340623, 123198 F

Abstract:

An engine control system and method calculates spark retard during cylinder activation and deactivation for a displacement on demand engine. A torque reduction calculator calculates a torque reduction signal based on desired and measured air per cylinder. A spark retard (RTD) calculator generates a RTD signal based on the torque reduction signal.

US Patent:

6782865, Aug 31, 2004

Filed:

Mar 22, 2002

Appl. No.:

10/104111

Inventors:

Allen B. Rayl - Waterford MI
Gregory Paul Matthews - West Bloomfield MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02B 7700

US Classification:

123198F

Abstract:

An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, a pressure sensor sensing manifold pressure, the pressure sensor electronically coupled to the controller, and where the controller receives pressure information from the pressure sensor and changes the displacement of the variable displacement internal combustion engine in response to the pressure information.

US Patent:

6874462, Apr 5, 2005

Filed:

Jul 24, 2003

Appl. No.:

10/626002

Inventors:

Gregory P. Matthews - West Bloomfield MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02B077/00

US Classification:

123198F

Abstract:

An engine control system in a vehicle including a variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, where the controller adaptively determines a torque threshold used to switch the variable displacement internal combustion engine between a partially displaced operating mode and a fully displaced operating mode.

US Patent:

6895941, May 24, 2005

Filed:

Jul 30, 2003

Appl. No.:

10/630623

Inventors:

Gregory P. Matthews - West Bloomfield MI, US
Charles H. Folkerts - Troy MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D017/02

US Classification:

123481, 123399

Abstract:

An engine control system including a variable displacement internal combustion engine, a plurality of cylinders located in the internal combustion engine, a plurality of fuel injectors for providing fuel to the plurality of cylinders, a plurality of valves coupled to the plurality of cylinders, the plurality of valves controlling the air flow in and out of the cylinders, an actuation apparatus for actuating the plurality of valves, an intake manifold coupled to the internal combustion engine, a throttle coupled to the intake manifold, a controller electronically coupled to the fuel injectors, an accelerator pedal position sensor electronically coupled to the controller, and where the controller determines the number of the cylinders to provide with fuel and air and a desired engine output torque based on the accelerator pedal position sensor and a hysteresis value.