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International Journal of Engineering and Advanced Research Technology

Volume 5 Issue 7 (July 2019)

S.No. Title & Authors Page No View
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Title : Optimization Design and Analysis of Speed Ratio of Three-Geared Transmission-By-Wire for Electric Vehicle

Authors : Zhuowen Zhao, Hu Mu, Lin Guo, Jinyu Qu

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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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2

Title : Impact of Electric Vehicle on Energy and Environment

Authors : Juan Wang, Kai Li, Chundong Li, Chaochao Li, Minghui Li

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Abstract :

China's current energy is made up of a large amount of coal, a small amount of oil and lack of gas., so since 2005, the National Development and Reform Commission has proposed to develop clean vehicles such as hybrid vehicles, gas vehicles and so on. After that, the Chinese government gave a series of supportive policies to vigorously promote the development of electric vehicles, but there are still some objections to whether electric vehicles are conducive to energy conservation and emission reduction. This article analyzed energy and emission impact of electric vehicles from the whole process of life cycle of electric vehicles. Results show that all conventional atmospheric pollutants for electric vehicles will be lower than conventional gasoline vehicles in 2050, while NOx, PM, and SO2 emissions increased in the near future. Through the above methods, it provides a theoretical basis for the future development of electric vehicles in China.

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