Volkswagen Ag

Klaus Wahnschaffe

Holger Manz

Olaf Kwasny

A device and a method for measuring torque for an electromechanical steering system comprises a steering means that is connected in a driving manner to a steering mechanism via a torsion rod which is provided with an input shaft part () and an output shaft part (), an electric servomotor for driving the steering mechanism, the driving activity by the servomotor causing a relative rotational displacement between the input shaft part () and the output shaft part (), a sensor unit () for detecting a steering angle (d), a sensor unit () for detecting a rotor angle of the servomotor (), and a virtual torque sensor () in which a steering moment (&#x3c4;) is determined from the steering angle (d) and the rotor angle.

Growing community of inventors

Wolfsburg/Hattorf, Germany

Klaus Wahnschaffe