Jeffrey J Allen

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:

7370521, May 13, 2008

Filed:

Oct 25, 2006

Appl. No.:

11/552610

Inventors:

Nils Sandmann - Gruenstadt, DE
Noboru Takahashi - Frankfurt am Main, DE
Douglas E. Trombley - Eppstein-Bremthal, DE
Jeffrey J. Allen - Bloomfield Hills MI, US
Dietmar Mueller - Riedstadt, DE
Thomas Wagner - Trebur, DE
Toshio Ichimasa - Zama, JP
Yoshiki Torii - Sagamihara, JP

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

G01M 15/00

US Classification:

73119A

Abstract:

A method of diagnosing a fuel injector of an engine system as contaminated is provided. The method comprises: recording a first fuel injection quantity; commanding a fuel rail pressure high; recording a second fuel injection quantity while the fuel rail pressure is high; and diagnosing the fuel injector as contaminated if the first fuel injection quantity is greater than the second fuel injection quantity.

US Patent:

54451256, Aug 29, 1995

Filed:

Mar 16, 1994

Appl. No.:

8/213854

Inventors:

Jeffrey James Allen - Grosse Pointe MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F02D 1110

US Classification:

123399

Abstract:

An interface for application in electronic throttle control for automotive vehicles allows for improved scope of accelerator authority including at times when competing control algorithms, such as idle speed, cruise and traction control algorithms are operating, and facilitates a smooth interaction between accelerator-based control commands and competing control algorithm control commands to minimize perception of the interaction.