| AUTOMOTIVE ENGINEERING |
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Simulation and experimental demonstration of a seamless two-speed automatic mechanical transmission for electric vehicles |
| NGUYEN Truong Sinh, SONG Jian, FANG Shengnan, SONG Haijun, TAI Yuzhuo, LI Fei |
| State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China |
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Abstract This paper describes a two-speed automatic mechanical transmission (AMT) for an efficient, uninterrupted powertrain for electric vehicles. This paper describes the transmission structure, which consists of a single planetary gear system, a disk friction clutch and a drum brake that allows seamless shifting between two gears. A dynamic model is given for a front drive wheel powertrain system in an electric vehicle in a MATLAB/Simulink environment that is more suitable for real-time simulations for designing the transmission. A real-time dynamic transmission test bench was setup with a hardware-in-the-loop simulation platform. The simulation and test results indicate that the power interrupt during shifting is eliminated and the transmission significantly improves the electric motor efficiency as well as the vehicle dynamics and energy consumption.
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| Keywords
two-speed transmission
electric vehicle
automatic mechanical transmission (AMT)
test bench
real-time simulation
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Issue Date: 15 October 2017
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| [1] |
XI Junqiang, XIONG Guangming, ZHANG Yan. Application of automatic manual transmission technology in pure electric bus[C]//Proceedings of the 2008 IEEE Vehicle Power and Propulsion Conference. Harbin, China:IEEE, 2008:1-4.
|
| [2] |
Hofman T, Dai C. Energy efficiency analysis and comparison of transmission technologies for an electric vehicle[C]//Proceedings of the 2010 IEEE Vehicle Power and Propulsion Conference. Lille, France:IEEE, 2010:1-6.
|
| [3] |
Walker P D, Rahman S A, ZHU Bo, et al. Modelling, simulations, and optimisation of electric vehicles for analysis of transmission ratio selection[J]. Advances in Mechanical Engineering, 2013, 5:1-13.
|
| [4] |
Hong S, Son H, Lee S, et al. Shift control of a dry-type two-speed dual-clutch transmission for an electric vehicle[J]. Journal of Automobile Engineering, 2016, 230(3):308-321.
|
| [5] |
ZHOU Xingxing, Walker P D, ZHANG Nong, et al. Numerical and experimental investigation of drag torque in a two-speed dual clutch transmission[J]. Mechanism and Machine Theory, 2014, 79:46-63.
url: http://dx.doi.org/10.1016/j.mechmachtheory.2014.04.007
|
| [6] |
吉毅. 纯电动汽车用AMT参数设计及换挡控制策略优化[D]. 重庆:重庆大学, 2014.JI Yi. Parameter Design and Shifting Control Strategy Optimization of AMT for Pure Electric Vehicle[D]. Chongqing:Chongqing University, 2014. (in Chinese)
|
| [7] |
QIN Datong, YAO Mingyao, CHEN Shujiang, et al. Shifting process control for two-speed automated mechanical transmission of pure electric vehicles[J]. International Journal of Precision Engineering and Manufacturing, 2016, 17(5):623-629.
|
| [8] |
Sorniotti A, Holdstock T, Pilone G L, et al. Analysis and simulation of the gearshift methodology for a novel two-speed transmission system for electric powertrains with a central motor[J]. Journal of Automobile Engineering, 2012, 226(7):915-929.
|
| [9] |
Lacerte M O, Pouliot G, Plante J S, et al. Design and experimental demonstration of a seamless automated manual transmission using an eddy current torque bypass clutch for electric and hybrid vehicles[J]. SAE International Journal of Alternative Powertrains, 2016, 5:13-22.
url: http://dx.doi.org/10.4271/2015-01-9144
|
| [10] |
Shin J, Kim J, Choi J, et al. Design of 2-speed transmission for electric commercial vehicle[J]. International Journal of Automotive Technology, 2014, 15(1):145-150.
|
| [11] |
Mousavi M S R, Pakniyat A, WANG Tao, et al. Seamless dual brake transmission for electric vehicles:Design, control and experiment[J]. Mechanism and Machine Theory, 2015, 94:96-118.
url: http://dx.doi.org/10.1016/j.mechmachtheory.2015.08.003
|
| [12] |
Tsai M C, HUANG Chengchi, Lin B J, et al. Kinematic analysis of planetary gear systems using block diagrams[J]. Journal of Mechanical Design, 2010, 132(6):1-10.
|
| [13] |
Sato Y, Ishikawa S, Okubo T, et al. Development of high response motor and inverter system for the Nissan LEAF electric vehicle[N]. SAE Technical Paper, 2011-01-0350, 2011.
|
| [14] |
Ng H K, Vyas A D, Santini D J, The prospects for hybrid electric vehicles, 2005-2020:Results of a Delphi study[N]. SAE Technical Paper, 1999-01-2942, 1999.
|
| [15] |
朱虹燃. 纯电动汽车两挡自动变速器的研究开发[D]. 青岛:青岛大学, 2014.ZHU Hongran. Research and Development of a Two-speed Automatic Transmission for Pure Electric Vehicles[D]. Qingdao:Qingdao University, 2014. (in Chinese)
|
| [16] |
FANG Shengnan, SONG Jian, SONG Haijun, et al. Design and control of a novel two-speed uninterrupted mechanical transmission for electric vehicles[J]. Mechanical Systems and Signal Processing, 2016, 75:473-493.
url: http://dx.doi.org/10.1016/j.ymssp.2015.07.006
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2017,
Vol. 57
