Steven Joseph Klein

US Patent:

6735507, May 11, 2004

Filed:

Jun 4, 2003

Appl. No.:

10/454447

Inventors:

Paul A. Grougan - Novi MI
Kenneth D. Norman - Ann Arbor MI
Thomas C. Zebehazy - Rochester MI
Scott P. Sherman - Fenton MI
Karen A. Boswell - Freeland MI
Steven D. Klein - Munger MI
Charles R. Worner - Freeland MI

Assignee:

General Motors Corporation
Delphi Technologies, Inc. - Troy MI

International Classification:

B62D 600

US Classification:

701 41, 180408, 180418, 180445

Abstract:

An all wheel steering system for a vehicle comprising a controller having a first input for receiving a signal from a hand wheel position sensor, a second input for receiving a signal from a vehicle speed sensor, and a third input for receiving a signal that varies depending upon whether a trailer is hitched the vehicle. The controller generates an output for controlling a rear wheel steering actuator. The output varies as a function of the first, second, and third inputs such that when a trailer is hitched to the vehicle the out-of-phase rear steer amount at low speeds is reduced and the in-phase rear steering amount at high speeds is increased.

US Patent:

7835836, Nov 16, 2010

Filed:

Nov 8, 2006

Appl. No.:

11/557673

Inventors:

Farhad Bolourchi - Novi MI, US
Steven D. Klein - Munger MI, US
Edward J. Bedner - Brighton MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

B62D 5/04

US Classification:

701 41, 340465, 180421, 180197, 180446

Abstract:

A method, system, and computer program product for calculating a torque overlay command in a steering control system is provided. The method includes receiving a current hand wheel angle, receiving a change in vehicle yaw moment command, and calculating a lateral force in response to the change in vehicle yaw moment command. The method also includes determining a new tire side slip angle from the lateral force and calculating a commanded hand wheel angle from the new tire side slip angle. The method further includes calculating an error signal as a difference between the commanded hand wheel angle and the current hand wheel angle, and generating a torque overlay command from the error signal.

Address:

2301 W Market St, Louisville, KY 40212

Phone:

5022988307

VIN:

5FNRL5H60BB071546

Make:

HONDA

Model:

ODYSSEY

Year:

2011

Address:

2301 W Market St, Louisville, KY 40212

Phone:

5022439071

VIN:

4T1CE30P87U760169

Make:

TOYOTA

Model:

CAMRY SOLARA

Year:

2007