한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제14권4호
  • /
  • Pages.157-163
  • /
  • 2006
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

CVT 시스템 효율을 고려한 변속 제어

Ratio Control of CVT by Considering the CVT System Efficiency

  • 류완식 (성균관대학교 기계공학부) ;
  • 김현수 (성균관대학교 기계공학부)
  • Ryu, Wan-Sik (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Hyun-Soo (School of Mechanical Engineering, Sungkyunkwan University)
  • 발행 : 2006.07.01
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초록

A modified ratio control algorithm is proposed for the improvement of the fuel economy for a metal belt CVT. In the modified ratio control algorithm, the CVT ratio is controlled to operate the engine on the optimal operation region which provides the best efficiency from the view point of the overall efficiency of the engine-CVT system. In order to construct the modified ratio map, the CVT system loss model is used by assuming that the all the loss is attributed to the torque loss. It is found from the simulation results that the fuel economy by the modified ratio control algorithm is improved by 5.5 percents compared with the existing ratio control.

키워드

참고문헌

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