Determination of a rotor angle of an electric motor in a vehicle with wheel sensors

摘要

The method involves determining angle of rotation of a wheel (3) by a wheel sensor (4). The relative rotor angle of the wheel is calculated from rotational angle by a computing device (5). An initial angle of rotor of the electric motor (2) is determined by a pole position measuring device (6) on the basis of drive signals of the electric motor. The absolute rotor angle is determined from initial angle and the relative rotor angle. An independent claim is included for vehicle.