Research on an Electric Power Steering System with Active Steering Ability

【Author】

Junwei Qiao;Jinfa Xie;Zhenwei Yang;

【Abstract】

To introduce a new type of electric power steering system, the structure and working principle of the system were introduced, and the models of the car, the tire and the steering system were established. The assist characteristic of the power steering and the ideal steering ratio were also designed and optimizedAt last, the simulation tests were carried out. The double planetary wheel mechanism is the most important component of the system. With this mechanism, the system synthesizes the force or motion from the steering wheel and the motor. So the power steering and a small steering ratio can be provided at a low speed, and the steering ratio can be changed initiatively at a medium or high speed. What's more, the steering ability still exists when there is a fault in the system. The simulation results show this steering system can effectively improve the steering portability, low-speed sensitivity, and the vehicle handling stability.

【Keywords】

Electric power steering system;;Double planetary wheel mechanism;;Active steering;;Low-peed sensitivity

References

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Springer Journals Database

Total: 12 articles

  • [1] SHI Guo-biao,ZHAO Wan-zhong,WANG Cheng-ling,LI Qiang,LIN Yi(School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China), Influence of Variable Steering Ratio for Steer-by-Wire System on Vehicle Handling Stability, Transactions of Beijing Institute of Technology,
  • [2] Shang Gaogao,Hong Ze,Zhang Hongdang,Luo Shi,He Ren(School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China), Modeling of variable steering ratio with steady-state gain for active steering system, Journal of Jiangsu University(Natural Science Edition),
  • [3] HU Ai-jun,LV Bao-zhan(School of Mechanics and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China), Development Tendency of Vehicle Steering System, Tractor & Farm Transporter,
  • [4] ZHAO Wanzhong1, *, SHI Guobiao2, LIN Yi2, and NIE Hong1 1 College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China 2 School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China, Tracking Performance of Electric Power Steering System Based on the Mixed H_2/H_∞ Strategy, Chinese Journal of Mechanical Engineering,

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