LEARNING CONTROLLER FOR THE COMPENSATION OF TORQUE PULSATIONS IN A STEERING ASSEMBLY

摘要

A control device for controlling an electric steering assembly is provided to reduce torque pulsations in the steering assembly. The control device comprises a learning control device for the suppression of periodic disturbances in a steering assembly. The learning control device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. The POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing power steering control loops.