The ECU of a rear wheel steering system

Rear wheel steering systems provide reduced turning circles at low speed and improved dynamic stability in high speed ranges. Using the techniques of modern electronics to meet these aims, a rear wheel steering system has been realized and tested. The authors describe the ECU of such a system, its configuration and its steps of development. A general overview is given to explain the whole system function and its main components which consist of the electronic control unit (ECU); the actuator; a position sensor; a steering wheel angle sensor; a wheel speed sensor; a tacho sensor; and a pressure sensor