Abstract: 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.

Abstract: 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.