Yaw stability control system capable of returning the vehicle to a pre body-force-disturbance heading

Patent application, 2009

The present invention relates to a yaw stability control system for a vehicle. At least one yaw rate sensor (5) is arranged to generate a signal indicative of the vehicle yaw rate. A controller is responsive to a yaw rate error. The controller is arranged to activate yaw angle control part (1) of the controller, in response to a body-force-disturbance being detected by at least one body-force-disturbance detection unit (7), and to start performing control of the yaw angle error in order to obtain a correction of the vehicle yaw angle resulting from the body-force-disturbance, and input to the system for performing vehicle yaw stability control operations (6) a signal to perform a body-force-disturbance yaw stability control operation for eliminating the vehicle yaw angle resulting from the body-force-disturbance and returning the vehicle to a pre body-force-disturbance heading.