차량 모델의 복잡성이 차량동력학 해석에 미치는 영향 : 모델의 비교 및 검증

An Effect of the Complexity in Vehicle Dynamic Models on the Analysis of Vehicle Dynamic Behaviors: Model Comparison and Validation

  • 배상우 (회원, 서울대학교 대학원 기계항공공학부) ;
  • 윤중락 (회원, 서울대학교 대학원 기계항공공학부) ;
  • 이장무 (회원, 서울대학교 기계항공공학부) ;
  • 탁태오 (회원, 강원대학교 기계공학과)
  • 발행 : 2000.11.01

초록

Vehicle dynamic models in handing and stability analysis are divided into three groups: bicycle model, roll axis model and full vehicle model. Bicycle model is a simple linear model, which hag two wheels with load transfer being ignored. Roll axis model treats left and right wheels independently. In this model, load transfer has a great effect on nonlinearity of tire model. Effects of suspension system can be analyzed by using full vehicle model, which is included suspension stroke motions. In this paper, these models are validated and compared through comparison with road test, and the effects of suspension kinematics and compliance characteristics on vehicle motion are analyzed. In handling and stability analysis, roll axis model can simulate the real vehicle motion more accurately than full vehicle model. Compliance steer has a significant effect, but the effect of suspension kinematics is negligible.

키워드

참고문헌

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