한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제14권4호
  • /
  • Pages.32-38
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  • 2006
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  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

자동차 수동 클러치 유압 실린더의 마찰 특성

Friction Characteristics of an Hydraulic Cylinder for an Automotive Manual Clutch

  • 이병수 (계명대학교 기계자동차공학부)
  • Lee, Byoung-Soo (School of Mechanical and Automotive Engineering, Keimyung University)
  • 발행 : 2006.07.01
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초록

A clutch hydraulic system for automotive manual transmissions transfers hydraulic pressure generated by driver's pedal manipulation to the clutch mechanism. The foot effort when the clutch pedal is pushed is different than that when the clutch is returned. The effort or load difference, called hysteresis, is caused by the friction produced between rubber seal and inner wall inside the hydraulic cylinder. This clutch pedal travel foot effort hysteresis is essential for a clutch hydraulic system design and analysis. The dynamic model for a clutch hydraulic system is developed and a simulation analysis is performed to estimate the fiction coefficient as a function of the cylinder pressure. The simulation result is then compared to the measurements obtained from a clutch hydraulic system tester to ensure the reliability of the dynamic model and the coefficients estimated. Also the estimated friction coefficients at various pressure values are compared to those reported by an independent study.

키워드

참고문헌

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