Abstract
Electric automated manual transmission usually adopts direct current motors and intermediate gearings to accomplish gear change. The structure can be simplified further to achieve better dynamic re...
Highlights
Due to the fast growth of the electric vehicle (EV) market, it is urgent to develop EVs with more efficiency and higher dynamic performance.[1]
The time optimal (TO)-active disturbance rejection control (ADRC) method is developed to improve the gearshift performance in this work
The sensor signals are processed by the analog-to-digital converter (ADC) module and all of the data are transmitted to a PC through RS232
Summary
Due to the fast growth of the electric vehicle (EV) market, it is urgent to develop EVs with more efficiency and higher dynamic performance.[1]. The special characteristics of the ADRC method are that it treats all the influence factors including chattering of synchronizer components, shaft vibration, shift force fluctuation, and other uncertainties as disturbances[30] and it is applicable to the direct-drive electromagnetic gearshift system since there are vibrations, crashes, parameter variations, and uncertainties during the gearshift process. In order to examine the parameter adaptability of the three controllers, two kinds of different target displacement are given as 4 and 2.5 mm which, respectively, match the first and third phases of the gearshift process exactly. According to the comparative simulation results, it can be concluded that the TO-ADRC controller achieves the faster displacement response, and its perfect robustness is beneficial to improve the gearshift performance
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