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International Journal of Automotive Technology > Volume 20(1); 2019 > Article
International Journal of Automotive Technology 2019;20(1): 147-156.
doi: https://doi.org/10.1007/s12239-019-0014-y
NOVEL SELF-CLAMPING CLUTCH MECHANISM FOR MICRO ELECTRIC VEHICLE TRANSMISSION
Seung-uk Park1, Kyung-woong Kim1, Byung-chul Na2, Jin-yong Kim2
1KAIST
2Korea Automotive Technology Institute
PDF Links Corresponding Author.  Kyung-woong Kim , Email. kimkw@kaist.ac.kr
ABSTRACT
This paper deals with a novel clutch mechanism for transmission applications, which aims at easy application of the transmission as the micro-electric vehicle models expand in variety. The new mechanism actuated by the torque and rotational inertia of the traction motor instead of the conventional hydraulic or electronic actuator and features a simple structure compared to the conventional mechanism. The operating principle, structure and mathematical modeling of the new clutch mechanism are presented, and verification of mathematical modeling was done through comparison of experimrntal and analytical results. To investigate the automotive suitability of the new clutch mechanism, the shift characteristics are analyzed by longitudinal directional vehicle dynamic model applying new clutch mechanism. As a result of the analysis, it was confirmed that the shift shock absorbing ability and required time for shifting are applicable to the vehicle transmission.
Key Words: Self clamping, Clutch mechanism, Electric vehicle, Transmission, Shift shock absorbing
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