| 제목 |
압력제어 방식 금속 벨트 CVT 변속비 제어 전략 |
| 분야 |
차량동역학 및 제어 |
| 언어 |
Korean |
| 저자 |
김현수(성균관대학교), 최득환(계명대학교) |
| Key Words |
CVT(무단변속기), pressure regulating type(압력제어 방식), Speed ratio(변속비), Primary pressure(구동풀리 압력), Kick down(킥다운) |
| 초록 |
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. |
| 원문(PDF) |
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