Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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An Investigation of the Lateral Stability Criteria for Integrated Chassis Control

통합 샤시 제어를 위한 횡방향 안전성 판단 조건에 관한 연구

  • 안국진 (서울대학교 차량동역학 및 제어연구실) ;
  • 좌은혁 (서울대학교 차량동역학 및 제어연구실) ;
  • 고영일 (서울대학교 차량동역학 및 제어연구실) ;
  • 이경수 (서울대학교 차량동역학 및 제어연구실) ;
  • 손기모 (현대자동차)
  • Received : 2017.04.21
  • Accepted : 2017.06.27
  • Published : 2017.06.30
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Abstract

This paper presents the lateral stability criteria for integrated chassis control. To determine the intervention timing of chassis control system, the lateral stability criteria is needed. The proposed lateral stability criteria is based on velocity-yawrate gain domain to determine whether vehicle is stable. If the yawrate gain violates the proposed criteria, the stability of the vehicle is considered as unstable. Characteristic velocity and critical velocity are employed to distinguish lateral stability criteria. The inside of the two boundaries is stable and the outside is unstable. If yawrate gain of vehicle violates the lateral stability criteria, the chassis control begin to intervene. To validate the lateral stability criteria, both computer simulations and vehicle test are conducted with respect to circular turn scenario. The proposed lateral stability criteria makes it possible to reduce intervention of chassis control system.

Keywords

References

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