Smooth gear-change control for EV Clutchless Automatic Manual Transmission

in International Symposium (oral presentation paper), 國際研討會(全文口頭發表)
標題Smooth gear-change control for EV Clutchless Automatic Manual Transmission
AuthorsChih-Hsien Yu, 余致賢, Chyuan-Yow 曾全佑, & 王金平
出版日期Jul 11 2012 12:0
會議地點Kaohsiung, Taiwan

Electric vehicles (EV) equipped with automatic
manual transmission (AMT) offer many advantages in terms of
transmission efficiency, improvement of driving comfort, and
shifting quality. Conventional AMT for vehicles powered by
internal combustion engine (ICE) requires an electronic
controlled clutch to separate/engage engine power for gear change
smoothly, because of high inertia of the ICE. This complicates the
system and thus raises higher cost. Hence, a Clutchless Automatic
Manual Transmission (CLAMT) with the advantages of high
efficiency, low cost, and simple structure is adopted and developed
in this paper. The objective of this article is focused on
gear-change control technique of CLAMT, including model
parameters identification, synchronization speed control during
gear engagement and motion control of gear-change actuated
mechanism. Through theoretical analysis, simulation, as well as
experimental verification, the results confirm that the designed
control technique is able to make smoothly gear-shifting and the
feasibility of CLAMT is verified.

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