Patent ID: 6968920

Claim:
A vehicle stability compensation system which is arranged to adjust dynamically a self-centering position and the steering feel of an electrically assisted steering system during a split mu braking operation, the stability compensation system comprising: means for establishing at least one operational variable representing a corrective steer angle for the vehicle and hence representing a target self-centering position; a driver feedback controller that is adapted to be connected to a vehicle steering system and that takes the at least one operational variable representative of the target self-centering position and subtracts therefrom an actual vehicle steering angle to derive a target self-centering error; and gain means for establishing a torque demand proportional to said target self-centering error, the torque demand being added to an assistance torque generated by the electrically assisted steering system to shift the self-centering position so as to encourage the vehicle driver to move the steering wheel such as to reduce the target self-centering error to zero for maintaining the vehicle stable and controllable.