公开(公告)号：US20230182757A1

公开(公告)日：2023-06-15

申请号：US17924995

申请日：2021-12-15

申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

发明人： Wanzhong ZHAO ,  Xiaochuan ZHOU ,  Chunyan WANG ,  ZHONGKAI LUAN ,  Ziyu ZHANG ,  Yixin ZHONG ,  BO ZHANG

IPC分类号： B60W50/12 ,  B60W50/10 ,  B60W40/09

CPC分类号： B60W50/12 ,  B60W50/10 ,  B60W40/09 ,  B60W2510/20

摘要： Disclosed are a drive-by-wire chassis cyber-physical system under an intelligent traffic environment and a control method. The system includes: an SoS-level CPS, a system-level CPS, and a unit-level CPS, data transmission is realized between a plurality of unit-level CPSs and one system-level CPS, and data transmission is realized between a plurality of system-level CPSs and one SoS-level CPS. The system integrates a hub motor with a suspension, cancels traditional structures such as an engine and a clutch, and simplifies the structure of a chassis. A motor directly drives a vehicle to run, and different driving, braking or torque is applied to different wheels through four hub motors, so as to meet independent control of the wheels and improve active safety and operational stability.

公开(公告)号：US20210269087A1

公开(公告)日：2021-09-02

申请号：US17258378

申请日：2019-11-06

申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

发明人： Wanzhong ZHAO ,  An WANG ,  Xiaochuan ZHOU ,  Chunyan WANG ,  Lijuan CHEN

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

摘要： 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.

公开(公告)号：US20230120929A1

公开(公告)日：2023-04-20

申请号：US17924332

申请日：2021-12-15

申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

发明人： Wanzhong ZHAO ,  Ziyu ZHANG ,  Chunyan WANG ,  Xiaochuan ZHOU ,  Gang WU ,  Zhongkai LUAN ,  Yulin YE

IPC分类号： B62D3/08 ,  B62D5/04 ,  B62D15/02 ,  H02K7/06 ,  H02K7/08 ,  H02K16/02

摘要： Disclosed are a multifunctional electric recirculating ball steering system for commercial vehicles and a control method thereof, including: an electric power module, a mechanical transmission module and a control module; the electric power module includes: a dual-rotor motor module (14) and a power motor (22); the mechanical transmission module includes: a steering wheel (1), a steering shaft (4), couplings (5), a recirculating ball steering gear (16), a gear sector (19), a gear sector shaft (6), a steering drag link (7), a steering tie rod (12), a steering knuckle arm (8), a left tie rod arm (11), a right tie rod arm (26), a left steering knuckle (10), a right steering knuckle (25), a left wheel (9) and a right wheel (24); and the control module includes: an electronic control unit (21), torque sensors (3), a vehicle speed sensor (20), a steering angle sensor (2) and current sensors (23). The system ensures system reliability.