System and method for determining a wheel departure angle for a rollover control system

摘要

A control system ( 18 ) and method for an automotive vehicle includes roll rate sensor ( 34 ) generating a roll rate signal, a lateral acceleration sensor ( 32 ) generating a lateral acceleration signal, a pitch rate sensor ( 37 ) generating a pitch rate signal, a yaw rate sensor ( 28 ) generating a yaw rate signal and a controller ( 26 ). The controller ( 26 ) is coupled to the roll rate sensor ( 34 ), the lateral acceleration sensor, the yaw rate sensor and the pitch rate sensor. The controller ( 26 ) determines a roll velocity total from the roll rate signal, the yaw rate signal and the pitch rate signal. The controller ( 26 ) also determines a relative roll angle from the roll rate signal and the lateral acceleration signal. The controller ( 26 ) determines a wheel departure angle from the total roll velocity. The controller ( 26 ) determines a calculated roll signal from the wheel departure angle and the relative roll angle signal.