| 제목 |
DUAL-MOTOR FULL-WEIGHT ELECTRIC POWER STEERING SYSTEM FOR COMMERCIAL VEHICLE |
| 분야 |
Chassis |
| 언어 |
English |
| 저자 |
Yaohua Li(Chang’an University), Qianlong Feng(Chang’an University), Yangsen Zhang(Chang’an University), Youfei Nan(Chang’an University) |
| Key Words |
Power steering system, Dual-motor, Full-weight, Current distribution schemes, Fault-tolerant control strategies |
| 초록 |
In order to study the electric power steering system (EPS) which is suitable for the steering characteristics of commercial vehicles, the effect of weight on steering performance is analyzed, and a dual-motor full-weight EPS system is proposed. Firstly, the full-weight assist characteristics are studied, and two current distribution schemes and corresponding fault-tolerant control strategies are proposed according to the structural characteristics of dual-motor EPS system. By comparing with the traditional single-weight EPS system, it is proved that the full-weight EPS system improves the control stability and makes the driver get a better road feeling. Through the double line change test and step test, the effectiveness of the two current distribution schemes are verified, and it has better fault-tolerance performance. By comparison, the faulttolerance performance of scheme two is better than that of scheme one. |
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