Automotive Electrical Actuation Technologies

The present paper presents an overview of actual high performance electric drives for automotive applications. The field of applications spans a broad range from active steering, power steering, electromechanical brakes, clutch and shift actuators, suspension, damping and stabilization actuators, heating, ventilation, and air conditioning up to starter-generators and traction, including x-by-wire (e.g. steer-by-wire, brake-by-wire). Most of these applications require high performance motors with a high torque/volume (mass) ratio, low inertia, high dynamics, good field-weakening and high temperature standing capability. In the actual situation on the global automotive market the demands for the electric actuators become more stringent