公开(公告)号：US20210269087A1

公开(公告)日：2021-09-02

申请号：US17258378

申请日：2019-11-06

Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

Inventor： Wanzhong ZHAO ,  An WANG ,  Xiaochuan ZHOU ,  Chunyan WANG ,  Lijuan CHEN

IPC: B62D5/04 ,  B62D15/02 ,  B62D5/00 ,  B62D6/00 ,  B62D3/12

Abstract: An active fault tolerance and fault mitigation system based on steer-by-wire dual motors and a mode switching control method thereof are provided. The system includes an acquisition unit, a steering wheel assembly, an ECU control module, a front wheel steering assembly, and a fault tolerance controller (18) which are sequentially connected. The acquisition unit transmits an acquired vehicle signal to the ECU control module, and then a corresponding compensation strategy is selected by means of a fault tolerance control strategy unit, a yaw rate calculation unit, a stability control unit, and a dual-motor compensation unit to act on a rack and pinion mechanism (15). The system and method can perform switching in an active fault tolerance and fault mitigation mode to achieve optimal control of the real-time performance of a vehicle, thereby ensuring the driving performance and higher performance of the vehicle in a field fault condition.