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International Journal of Automotive Technology > Volume 10(1); 2009 > Article
International Journal of Automotive Technology 2009;10(1): 115-121.
PERFORMANCE ANALYSIS OF A CVT CLUTCH SYSTEM FOR A HYBRID ELECTRIC VEHICLE
W. RYU1, N. CHO2, I. YOO3, H. SONG4, H. KIM5
1Hyundai Powertech
2NGV
3Hyundaimotor Co.
4ANSAN College of Technology
5Sungkyunkwan University
ABSTRACT
In this study, the performance of a CVT clutch system for a hybrid electric vehicle was investigated. To analyzed the vehicle performance at restart, the restart delay and driveshaft torque was investigated by simulations and experiments. It was found from the simulation results that the vehicle restart response depends on the clutch pressure buildup time to the point where the clutch torque begins to overcome the vehicle road load, and driving comfort at restart is directly related to the rate change of the clutch pressure.
Key Words: CVT, Hybrid electric vehicle, Clutch, Restart response
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