Optimization Design and Analysis of Speed Ratio of Three-Geared Transmission-By-Wire for Electric Vehicle | |
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( Volume 5 Issue 7,July 2019 ) OPEN ACCESS | |
Author(s): | |
Zhuowen Zhao, Hu Mu, Lin Guo, Jinyu Qu | |
Abstract: | |
A new type of three-geared transmission-by-wire for electric vehicles is proposed,The preliminary matching of the powertrain parameters of the transmission-by-wire(TBW) is carried out to optimize the electric vehicle gear ratio with the shortest acceleration time and the maximum driving range. In order to verify the rationality and effectiveness of the optimization results, the vehicle model was built by the advisor simulation platform, and its dynamic and economic simulation was carried out under NEDC conditions. The simulation results show that compared with pre-optimization, the optimized vehicle mileage is increased by 2.16%, the 0-50km acceleration time is shortened by 4.88%, and the 50-80km acceleration time is shortened by 1.59%, the maximum speed is increases by 4.81% indicating that the proposed shifting device is reasonable and feasible. |
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