DOI QR코드

DOI QR Code

Design of C-EPS (Column type - Electric Power Steering) Simulator and Development of Control Algorithm

C-EPS (C-type Electric Power Steering) 시뮬레이터 설계 및 제어 알고리즘 개발

  • Received : 2010.03.15
  • Accepted : 2010.04.30
  • Published : 2010.06.01

Abstract

EPS (Electric Power Steering) is important device for improving vehicle's dynamics and static performances. This paper deals with simulator design for C-EPS (Colum type-EPS), development assist and returnability control algorithm. First, C-EPS system model was simply designed because EPS system is complex control system that has many unknown variables. These parameters were simplified through assumptions. Second, C-EPS simulator was designed for development of control algorithm. This simulator has SAS (Steering Angle Sensor), dual torque sensor, dual load cell for measuring rack force, dual linear actuator for generating tire force and Data Acquisition System. Using this simulator, control methods ware tested. Third, control algorithm was designed for torque assist and returnability. Assist torque map and returnability torque map were found by lots of simulation test. These torque maps were tuned for EPS actuator control. The simulation result was compared with non-EPS system result. In this research, the C-EPS simulator was designed for development of control algorithm about torque assistant and returnability. Using this simulator, control algorithm was improved.

Keywords

References

  1. 송정훈, "Prototype의 새로운 Electron Power Steering.(EPS) System의 개발," 대한기계학회논문집 A권, 제30권 제6호, pp. 684-690, 2006. https://doi.org/10.3795/KSME-A.2006.30.6.684
  2. A. Badawy, J. Zuraski, F. Bolourchi, and A. Chandy, "Modeling and Analysis of an Electric Power Steering system," SAE, 1999- 01-0399.
  3. H. Kawazoe, T. Murakami, O. Sadano, K. Suda amd H. Ono, "Development of a Line-keeping Support System," SAE, 2001- 01-0797.
  4. A. Sugiyama, M. Kurishige, H. Hamada, and T. Kifuku, "An EPS Control Strategy to Reduce Steering Vibration Associated with Disturbance from Road Wheel," SAE Paper 2006-01-1178.
  5. 김기현, 김창준, 신현수, 한창수, "HILS를 이용한 RMDPS 제어 알고리즘 개발," 한국자동차공학회 춘계학 술대회논문집, pp. 800-806, 2007.
  6. Angleviel, Frachon and Masson, "Development of a Contactless Hall effect Torque Sensor for Electric Power Steering," SAE paper 2006-01-0939.
  7. 김지훈, 송재복, "토크맵을 이용한 컬럼형 전기식 동력조향 시스템의 제어로직," 한국자동차공학회, 제8권 제4호, pp. 186-193, 2000.
  8. KunWoo Lee, Principles of CAD/CAM/CAE System, Addison- Wesley Longman Publishing Co., Inc., 2000.