Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Analysis of Primary and Secondary Thrust of a Metal Belt CVT Part I : New Formula for Speed Rtio-Torque-Thrust Relationship Considering Band Tension and Block Compression

금속벨트 CVT 의 구동 및 종동 드러스트 해석 Part I : 밴드 장력과 블록 압축력을 고려한 새로운 변속비-토크-트러스트 관계식

  • 이희라 (성균관대학교 대학원) ;
  • 김현수 (성균관대학교 기계공학부)
  • Published : 1999.11.01
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Abstract

In this paper, a new formula for primary and secondary thrust of metal belt CVT is proposed considering variation of band tension, block compression and active arc for each of the primary and secondary pulleys. For the secondary thrust, effective friction coefficient is introduced considering the effect of flange deflection. Nondimensional primary and secondary thrust of the metal belt CVT by the new formula agree well with the experimental results except for low torque range, $0\;<\;{\lambda}\;<\;0.2$ at speed ration i = 1.0. The new formula can be used in design of the primary and secondary thrusts control system for the metal belt CVT.

Keywords

References

  1. SAE 930667 A Study of a Metal Pushing V-Belt Type CVT-Part 2: Compression Force Betwcen Metal Blocks and Ring Tension T. Fujii;T. Kurokawa;S. Kanehara
  2. SAE 930666 A Study of a Metal Pushing V-Belt TypeCVT-Part 1: Relation Between Transmitted Torque and Pulley Trust T. Fujii;T. Kurokawa;S. Kanehara
  3. 대한기계학회 논문집 v.14 no.2 금속 V-벨트 CVT의 동력전달 특성과 변속비-부하토크-축력관계 김광원;김현수
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  5. 自動車技術會 論文集 no.44 Analysis of Behavior of CVT Belt A. Katsuya;T. Sato;K. Kurimoto
  6. ASME v.43-1 A discrete Analysis of Metal V-Belt Drive D. Karam;D. Play
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  8. 자동차공학회 추계학술대회 논문집 v.2 금속벨트 CVT 변속비-토크-드러스트 특성과 유효마찰계수 이병준;김현수