Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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Lateral Stability Control for Rear Wheel Drive Vehicles Using Electronic Limited Slip Differential

전자식 차동 제한장치를 이용한 후륜구동 차량의 횡방향 안정성 제어

  • 차현수 (서울대학교 기계항공공학부) ;
  • 이경수 (서울대학교 기계항공공학부)
  • Received : 2020.11.06
  • Accepted : 2021.06.18
  • Published : 2021.09.30
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Abstract

This paper presents a lateral stability control for rear wheel drive (RWD) vehicles using electronic limited slip differentials (eLSD). The proposed eLSD controller is designed to increase the understeer characteristic by transferring torque from the outside to inside wheel. The proposed algorithm is devised to improve the lateral responses at the steady state and transient cornering. In the steady state response, the proposed algorithm can extend the region of linear cornering response and can increase the maximum limit of available lateral acceleration. In the transient response, the proposed controller can reduce the yaw rate overshoot by increasing the understeer characteristic. The proposed algorithm has been investigated via computer simulations. In the simulation results, the performance of the proposed controller is compared with uncontrolled cases. The simulation results show that the proposed algorithm can improve the vehicle lateral stability and handling performance.

Keywords

Acknowledgement

본 연구는 국토교통부 도심도로 자율협력주행 안전·인프라 연구 사업의 연구비지원(과제번호 19PQOW-B152473-01)에 의해 수행되었습니다.

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