CAR STEERING WHEEL ELECTROMECHANICAL BOOSTER

摘要

The invention relates to car control means. The stator of an electric motor is provided with a magnet core comprising pronounced poles and a rotor comprising n-2 poles embodied in the form of permanent magnets. The stator three-phase winding is provided with coils placed in the six equal alternating phase areas in such a way that one area is assigned to one pole and with several coils belonging to one phase in each phase area. The winding coils in the areas belonging to one phase are connected in a parallel aiding configuration. The steering wheel booster body is provided with input and output shafts which are interconnected with the aid of a torsion bar embodied in the form of a torque sensor sensing element and are linked with the sheering wheel and sheering mechanism by the other ends thereof. The electric motor rotor is mounted on the output shaft. The inventive device also comprises a controllable source for supplying the stator winding, a rotor position sensor and a control unit which is connected to the outputs of the torque and rotor position sensors by the inputs thereof and to the control input of the supply source by the output thereof. Said invention excludes the transmission of an outside disturbance torque to the steering wheel and makes it possible to improve the producibility of the electric motor and the steering wheel buster and to increase the useful properties thereof.