Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지

A Study on the Dynamic Analysis and Control Algorithm for a Motor Driven Power Steering System

  • Yun, Seokchan (Department of Precision Mechanical Engineering, Hanyang University) ;
  • Han, Changsoo (Department of Precision Mechanical Engineering, Hanyang University) ;
  • Wuh, Durkhyun (KATECH,Yongjeong 74, Poongse-myeon, Cheonan)
  • Published : 2002.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

The power steering system for vehicles is becoming essential for supporting the steering efforts of the drivers, especially for the parking lot maneuver Although hydraulic power steering has been widely used for years, its efficiency is not high enough. The problems associated with a hydraulic howe. steering system can be solved by a motor driven power steering (MDPS) system. In this study, a dynamic model and a control algorithm for the ball screw type of MDPS system have been derived and analyzed by using the method of discrete modeling technology. To improve steering feel and power steering characteristics, two derivative gains are added to the conventional power boosting control algorithm. Through simulations, the effects of the control gain on the steering angle gain were verified in the frequency domain. The steering returnability and steering torque phase lag in on-center handling test were also evaluated in the time domain.

Keywords

References

  1. Baxter, J., 1989, 'Analysis of Stiffness and Feel for a Power-Assisted RAck and Pinion Streering Gear,' SAE880706, pp. 827-833
  2. Chikuma ,I. and Shimada, S., 1992, 'Electric Power Steering for Passenger Car,' NSK Technical Journal, No. 654, pp. 36-47
  3. Dixson, J.C., 1991, 'Tires, Suspension and Handling, 'Cambridge University Press
  4. ISO 7401, 1988, 1988 Road Vehicles-Transient Open-Loop Response Test with step Steering
  5. Jang, J.H. and Han, C.S., 1997, 'The Sensitivity Analysis of Yaw Rate for the Front Wheel Steering Vehicle: In the Frequency Domain,' KSME International Journal, Vol. 11, No. 1, pp. 56-66 https://doi.org/10.1007/BF02945226
  6. Jang, J.H. 뭉 Han,C.S., 1997, 'Sensitivity Analysis of Side Slip Angle for a Front Wheel Steering Vehicle:a Frequency Domain Approach,' KSME International Journal, Vol. 11, No. 4, pp. 367-378 https://doi.org/10.1007/BF02945075
  7. Karnopp, D.C., Margolis, D.L. and Rosenberg, R.C., 1990, 'System Dynamics:A Unified Approach(2nd Ed.),' John Wiley & Sons Inc.
  8. Lee, S.H., Lee, U.K. and Han, C.S., 1999, 'Four wheel Independent Steering(4WIS) System for Vehicle Handling Improvement by Active Rear Toe Control,' JSME International Journal, Vol. 42, No. 4 https://doi.org/10.1299/jsmec.42.947
  9. Nakayama, T. and Suda, E., 1994, 'The Presence and Future of Electric Power Steering,' International Journal of Vehicle Design, Vol. 15, Nos 3/4/5, pp. 243-254
  10. Norman, K.D., 1984, 'Object Evaluation of On-Center Handling Performance,' SAE840069, pp. 1-13
  11. Sato, H., et al., 1991, 'The Quantitative Analysis of Steering Feel,' JSAE review, 12, 2, pp. 85-87
  12. Schleuter, W., 1989, 'Electric Servo Drive for Front and Rear Wheel Power Steering,' Journal of Automobile Engineering, C382/065, pp. 361-368
  13. Shimizu, Y. and Kawai, T., 1991, 'Development of Electric Power Steering,' SAE910014, pp. 105-119
  14. Takehara, S., et al., 1997, 'Improvement of Motor Inertia Influence of Electric Power Steering,' Proceedings of Automotive Technology, pp. 69-72
  15. Yun, S.C., 2000, 'A Study on the Enhanced Control Algorithm for a Ball Screw Type of Motor Driven Power Steering System,' Ph. D. Thesis, Hanyang University