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Development of Toroidal Type Continuously Variable-Speed Transmission for Agricultural Tractor(2): Control System  

김의한 (iTEC 대표이사)
이재천 (계명대학교 기계자동차공학부)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.10, no.4, 2002 , pp. 114-121 More about this Journal
Abstract
This paper describes the control system of the toroidal traction driver continuously variable-speed transmission(CVT) fur a tractor. The instrumentation system, the hydraulic power control system and the principle control scheme were introduced. Experimental tests in the bench and the tractor were conducted to validate the performance of the CVT utilizing the proposed controller. The speed of the vehicle was continuously changed to follow the speed set by driver under various operating conditions. Given the reduction ratio of the variator from 2.0 to 1.0, the settling time was about just 0.52 seconds which was satisfactory value for working with the tractor. It was also proved that the tractor could work with continuously variable speed under heavy load disturbances.
Keywords
Toroidal; CVT(Continuously variable-speed transmission); Controller; Variator; RV(Reduction ratio of variator);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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