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Design Parameter Analysis of the Proportional Control Valve for Wheel-Loader Automatic Transmission  

Park, Young-Jun (System Engineering Research Division, KIMM)
O, Joo-Young (Department of Mechanical design & Mechatronics Engineering, Hanyang Univ.)
Yun, Ung-Kwon (System Engineering Research Division, KIMM)
Lee, Guen-Ho (System Engineering Research Division, KIMM)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.5, 2010 , pp. 27-35 More about this Journal
Abstract
A loader used for uploading materials into truck is a kind of construction equipment. Mainly, a wheel loader is applied to construction work. Recently, an automatic transmission for the wheel loader is used to help drivers get the repetitive works done comfortably. It is composed of geartrain, clutch pack, hydraulic control system and TCU. Especially, a high-performance proportional control valve and its control algorithm is demanded to achieve the shift quality during a change of speed. In this paper, the commercial package program was used in order to justify model of the proportional control valve and simulate it. Steady-state and dynamic characteristics of PCV were analyzed to classify attractive forces and hydraulic control characteristics. This model also was verified the validity compared to the experimental result. Using the developed model, performances of PCV were predicted as studying design parameters.
Keywords
Proportional Control Valve; Attractive Force; Pilot Control; Wheelloader Automatic Transmission;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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