KEVIN JAMES ZELENKA
Pilots at White Lk Rd, Highland Twp, MI

6408229, Jun 18, 2002

Sep 25, 2000

09/669436

Steven Paul Loudon - Howell MI
Michael Douglas Rizzo - White Lake MI
Kevin J Zelenka - Highland MI
Todd David Brown - Brooklyn MI

Delphi Technologies, Inc. - Troy MI
General Motors Corporation - Detroit MI

A63B 7100

701 1, 701 70, 340438

A motor vehicle mounted system is responsive to sensed or estimated vehicle lateral acceleration and vehicle speed for detecting and signaling when the vehicle is operating on a racetrack. The system determines whether the vehicle is in a high lateral acceleration state or a low lateral acceleration state and when the vehicle is maintaining a minimum speed. The system increments a count when the vehicle is in the high lateral acceleration state if the vehicle has maintained the minimum speed for a first time since the last increment or decrement of the count and decrements the count when the vehicle is in the low lateral acceleration state if the vehicle has maintained the minimum speed for a second time since the last increment or decrement of the count. The system detects and signals operation on a racetrack while the count exceeds a predetermined threshold count and otherwise detects and signals no operation on a racetrack. Racetrack driving is thus detected through repeated episodes of high lateral acceleration during high speed turns on racetrack curves and corners.

6397134, May 28, 2002

Sep 13, 2000

09/661241

David Andrew Shal - Bellbrook OH
Raymond Kurt Schubert - Mountain View CA
Kevin J Zelenka - Highland MI

Delphi Technologies, Inc. - Troy MI

B60G 1700

701 37, 701 48, 701 91, 280 55, 280 5512, 280 5515, 180 41

A vehicle suspension control stores, for each direction of vehicle lateral acceleration, a first set of enhanced vehicle damping commands that provide enhanced damping in compression for the suspension dampers on the outside of a turn and in rebound on the inside of the turn and a second set of enhanced body damping commands that provide enhanced damping in compression and rebound on both sides of the vehicle. Responsive to a sensed vehicle lateral acceleration, the control applies the first set of enhanced damping commands to the suspension dampers if a sensed steering angle is in the same direction as the sensed lateral acceleration and applies the second set of enhanced body damping commands to the suspension dampers if the sensed steering angle is in the opposite direction as the sensed lateral acceleration. The control may derive a demand force command for each of the dampers from the determined relative velocities of the dampers and apply each of the demand force commands to its respective damper only when a comparison of the direction of the demand force command with the sensed relative velocity of the damper indicates that a force corresponding to the demand force command can be effectively exerted by the damper. The enhanced body damping commands are applied to the suspension dampers without regard for any application of the demand force command.