CAR STEERING WHEEL ELECTROMECHANICAL BOOSTER Russian patent published in 2011 - IPC B62D5/04 H02K21/16 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, namely, to car steering wheel electromechanical booster. Proposed booster comprises housing accommodating two aligned shafts (input and output), m-phase motor excited from tangentially magnetised permanent magnets, stator magnetic core built in booster housing, rotor magnetic core, rotor position pickup and torque pickup. Stator magnetic core features salient poles arranged in Nm equal alternating phase zones, where N is number of phase zones, and with Nmk poles, where k=1…n is number of poles in phase zone whereon coils are fitted, one per one pole. Several coils connected in parallel aiding are arranged in each zone. Rotor windingless multi-pole magnetic core is fitted on output shaft. Number of poles on stator and rotor differ by N. Torque pickup is made up of torsion box and torsion box twisting angle metre. Torsion box is arranged inside space formed by input and output shafts. Pole tips are arranged on stator poles via nonmagnetic air gap, whereto like poles of excitation system permanent magnets adjoin.

EFFECT: improved ergonomics due to reduced force to applied to steering wheel.

4 cl, 4 dwg