Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the Speed-based Active Compensation of the Kiss-Point of Dry-type Clutch Equipped with Automated Manual Transmission

자동화 수동변속기용 건식클러치의 속도기반 Kiss-Point 능동 보상에 관한 연구

  • Choi, Woo-Seok (Department of Automotive Engineering, Seoul National University of Science and Technology) ;
  • Lee, Kyo-Bum (Department of Automotive Engineering, Seoul National University of Science and Technology) ;
  • Lim, Wonsik (Department of Automotive Engineering, Seoul National University of Science and Technology)
  • 최우석 (서울과학기술대학교 자동차공학과) ;
  • 이교범 (서울과학기술대학교 자동차공학과) ;
  • 임원식 (서울과학기술대학교 자동차공학과)
  • Received : 2016.01.12
  • Accepted : 2016.03.04
  • Published : 2016.05.01
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Abstract

Clutch torque control is the key to the ride comfort improvement of a vehicle equipped with AMT (automated manual transmission). For such control, the torque transfer starting point, known as the "kiss point," should be indicated or at least estimated to compensate for the clutch torque. The kiss point changes due to wear, high temperature, and fatigue; as such, it should be estimated while the vehicle is being driven. In this study, the method of kiss point active estimation for an AMT vehicle with a dry-type clutch was devised. The kiss point is learned while the engine is in an idle state and while the transmission is at a neutral gear position. It is determined when the input shaft of the transmission starts to rotate by slowly engaging the clutch. The noise of the shaft speed signal during the slow engagement process is filtered for accurate control. The kiss point estimation at various clutch engagement speeds was analyzed via a vehicle test.

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References

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