公开(公告)号：US20220126910A1

公开(公告)日：2022-04-28

申请号：US17258415

申请日：2020-05-14

Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

Inventor： Wanzhong ZHAO ,  Xiaochuan ZHOU ,  Changzhi ZHOU ,  Zhongkai LUAN ,  Weihe LIANG

IPC: B62D5/04 ,  B62D5/06 ,  B62D15/02 ,  B62D5/30 ,  B62D5/00

Abstract: The present invention discloses a drive-by-wire electro-hydraulic steering system based on a double-winding motor and a hybrid control method. The steering system includes a steering wheel (1), a steering column assembly, a road sense assembly, an electro-hydraulic power-assisted module, a double-winding motor power-assisted module (28), a steering control unit, an electromagnetic clutch (8), a steering tie rod (17), a steering trapezoid (13) and steering wheels (12). The steering system can be switched among various steering work modes according to work conditions of a vehicle, meets steering requirements under various work conditions, uses a work mode that two sets of windings of the double-winding motor work at the same time, and has a motor winding redundancy function. When one set of windings fails, the other set of windings can drive the motor to provide power-assisted torque.