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논문 기본 정보

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한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제10권 제3호
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    초록·키워드

    In this paper, the control strategy of ratio changing system for a metal belt CVT adopting primary pressure regulation is developed, and the shifting performance of pressure regulating type CVT with the suggested control strategy is investigated. The control strategy suggested in this study is composed of 2 feedback loop, one is speed ratio feedback and the other is primary pressure feedback. The pressure feedback is adopted to ensure prohibiting a belt slip during transient period in a fast downshift mode. Simulation results show that the system with suggested control strategy gives appropriate response time and tracking performance for upshift and also gives a proper primary pressure which can prohibit the belt slip. In addition, it is found that the given system has an acceptable servo property in tracking the target speed ratio and robustness for the disturbance of line pressure.

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      UCI(KEPA) : I410-ECN-0101-2009-556-013992292