Minimization of steering corruption during front axle torque vectoring

The effect of torque vectoring at the front steered axle on the steering torque is studied in this paper. A strategy is developed to implement front torque vectoring while preventing steering torque disturbances to the driver. This strategy is implemented in a Model Predictive Controller (MPC) based on a five degrees of freedom non-linear model. The controller provides optimal compromises between good yaw rate following performance and small steering torque corruption. The implementation of the strategy is compared against the passive vehicle and the unconstrained control cases using IPG CarMaker.