Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the DYC 4WS Control Method for Improving the Dynamic Characteristics of Vehicle

자동차의 주행성능 향상을 위한 DYC 4WS 제어방법에 관한 연구

  • 김형내 (한국항공대학교 기계설계학과 대학원) ;
  • 김석일 (한국항공대학교 기계설계학과) ;
  • 김동룡 (기아기술센터 차량연구실) ;
  • 김건상 (기아기술센터 차량연구실)
  • Published : 1998.03.01
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Abstract

The 4WS system is usually developed to improve the maneuverability at low speed and the straight line stability at high speed, but it is found to have the severe understeer characteristics at high speed. Therefore a 4WS vehicle requires to turn the steering wheel much more than a 2WS vehicle at high speeds even a driver goes through the same curved road. In this study, to enhance the cornering performance of the 4WS vehicle at high speed, a DYC 4WS system is proposed based on the nonlinear 4WS system and direct yaw moment control system. Especially the proposed DYC 4WS system is able to realize a zero side slip angle for vehicles and a cornering performance similar to the 2WS vehicle at high speed.

Keywords

References

  1. Vehicle System Dynamics v.18 no.1 A Review of Four-Wheel Steering Studies from the Viewpoint of Vehicle Dynamics and Control Y. Furukawa(et al.)
  2. 한국자동차공학회지 v.3 no.3 운전자-자동차모델을 이용한 4륜조향자동차의 주행특성 해석 이영화;김석일;서명원;김대영;김동룡
  3. 한국자동차공학회 차량동역학 학술강연초록집 핸들조향속도를 고려한 4WS제어방법에 관한 연구 이영화;김석일;김대영;김동룡
  4. SAE-Paper 90174 Design of 2-Degree-of-Freedom Control System for Active Front-and-Rear-Wheel Steering M. Aga(et al.)
  5. AVEC-Paper 923046 Adaptive Control of 4WS System by Using Neural Network T. Shiotsuka;A. Nagamatsu;K. Yoshida
  6. SAE-Paper 921604 Improving Vehicle Handling Performance by a Closed-Loop 4WS Driving Controller Y. Lin
  7. AVEC-Paper 923043 Optimal Control of Four Wheel Steering Vehicle A. Higuchi;Y. Saito
  8. AVEC-Paper 9438204 Yaw Rate and Lateral Acceleration Feedback for Four-Wheel Steering J. Ackermann
  9. AVEC-Paper 923080 Effect of Traction Force Distribution Control on Vehicle Dynamics S. Motoyama;H. Uki;K. Isoda;H. Yuasa
  10. AVEC-Paper 923081 The Improvement of Vehicle Maneuverability by Direct Yaw Moment Control Y. Shibahata;K. Shimada;T. Tomari
  11. AVEC-Paper 9438132 Torque Split Control for Electric Vehicle with 4-Wheel Direct-Drive Motors T. Fujioka;N. Yanase
  12. AVEC-Paper 9438196 Comparison of 4WS and Direct Yaw Moment Control for Improvement of Vehicle Handling Performance M. Abe;N. Ohkubo;Y. Kano
  13. 한국자동차공학회 차량동역학 학술강연초록집 비선형 타이어모델을 이용한 4WS 자동차의 주행특성 해석 김형내;김석일;김동룡;김건상
  14. 한국자동차공학회지 v.3 no.4 타이어의 코너링강성이 4륜조향자동차의 조향특성에 미치는 영향 이영화;김석일;서명원;김대영;김동룡