scholarly journals Optimization of Powertrain in EV

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 725
Author(s):  
Grzegorz Sieklucki
Keyword(s):  
Mechanical Characteristic ◽  
Gear Ratio ◽  
Vehicle Model ◽  
Traction Motor ◽  
Motor Torque ◽  
Optimization Program ◽  
Ratio Optimization ◽  
Powertrain Design

The method for preliminary powertrain design is presented in the paper. Performance of the EV is realized by motor torque–speed curve and gear ratio optimization. The typical two-zone mechanical characteristic of a PMSM traction motor is included in the optimization program. The longitudinal vehicle model is considered in the paper. Some examples try to show the calculation possibilities in application to existing vehicles: Tesla Model S and Mini Cooper SE.

Gear ratio optimization of two-speed transmission in electric off-road vehicle

2019 ◽  
Author(s):  
Xinxin Zhao ◽  
Jingkai Wang ◽  
Yaran Zhang ◽  
Jing Tang ◽  
Xiaoyan Zhao
Keyword(s):  
Gear Ratio ◽  
Road Vehicle ◽  
Ratio Optimization

Electric Vehicle Transmission Gear Ratio Optimization Based on Particle Swarm Optimization

2012 ◽  
Vol 187 ◽  
pp. 20-26 ◽  
Author(s):  
Qiang Gu ◽  
Xiu Sheng Cheng
Keyword(s):  
Particle Swarm Optimization ◽  
Energy Consumption ◽  
Electric Vehicle ◽  
Particle Swarm ◽  
Gear Ratio ◽  
Swarm Optimization ◽  
Driving Range ◽  
Ratio Optimization ◽  
Power Component ◽  
Transmission Gear

The driving range of electric vehicles is less than traditional vehicles due to the restriction of energy storage. It is raising the efficiency of each power component that is one of increasing electric vehicle driving range methods. A particle swarm optimization is used to optimize transmission gear ratio on established electric vehicle power component models. A simulation that simulates the energy consumption of vehicle after gear ratio optimization is given to compare with the actual energy consumption data of the vehicle before gear ratio optimization. The results show that the energy consumption and driving range of the latter are better than the former therefore this optimization is valid.

Research on Overloading Protection of Permanent Magnetic Coupler in Coal Mine

2014 ◽  
Vol 597 ◽  
pp. 492-497
Author(s):  
Wen Qi Yuan ◽  
Yue Liu ◽  
Dong Li ◽  
Guo Ying Meng
Keyword(s):  
Experimental Data ◽  
Mechanical Characteristic ◽  
Coal Mine ◽  
Mechanical Characteristics ◽  
Input Power ◽  
Maximum Torque ◽  
Characteristic Curves ◽  
Motor Torque ◽  
Output Torque

In this paper, with simulations and experiments analysed by the software of Ansoft Maxwell, research on overloading protection of permanent magnetic coupler in coal mine is carried out and the conclusive curves of mechanical characteristics are plotted through experimental data. The conclusion can be gained from mechanical characteristic curves: when the output value of torque reaches the maximum torque of magnetic coupler, the output torque and speed will drop along with increases of the slip, and the input power value of motor is less than the power value at the time when the motor torque value is at the maximum. It explains that the magnetic coupler has the function for overloading protection.

scholarly journals Method of Selecting Energy-Efficient Parameters of an Electric Asynchronous Traction Motor for Diesel Shunting Locomotives—Case Study on the Example of a Locomotive Series ChME3 (ЧMЭ3, ČME3, ČKD S200)

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 317
Author(s):  
Valeriy Kuznetsov ◽  
Ewa Kardas-Cinal ◽  
Piotr Gołębiowski ◽  
Borys Liubarskyi ◽  
Magomedemin Gasanov ◽  
...  
Keyword(s):  
Electric Drive ◽  
Energy Efficient ◽  
High Efficiency ◽  
Gear Ratio ◽  
Traction Motor ◽  
Term Operation ◽  
Asynchronous Electric Drive ◽  
Asynchronous Traction Motor ◽  
Modernization Process ◽  
Electric Traction

One of the assumptions made during the modernization process of diesel shunting locomotives is the replacement of a diesel traction motor with a DC generator with an electric asynchronous traction motor. The article aimed to develop a method of selecting energy-efficient parameters of an asynchronous electric traction motor for diesel shunting locomotives, which will ensure that its operating energy efficiency will be as high as possible. The method was verified on the example of a locomotive series ChME3 (ЧMЭ3, ČME3, ČKD S200). It has been found that using a traction asynchronous electric drive on a ChME3 locomotive, its efficiency increases in comparison with DC electric motors by 3–5% under the long-term operation modes and by 7–10% during locomotive operation with traction at the adhesion limit. Using a new traction gearbox with a higher gear ratio expands the speed range in which the asynchronous traction drive operates with a high-efficiency factor. It is effective to use a traction asynchronous electric drive to modernize ChME3 diesel locomotives in case of their use under the modes requiring the implementation of maximum traction forces at low speeds. A further increase in the efficiency of the traction asynchronous electric drive is possible based on the optimal design of the wheel-motor unit and the asynchronous traction electric drive.

Gear Ratio Optimization of a Multifunctional Walker Robot Using Dual-Motor Actuation

2021 ◽  
Author(s):  
John Bell ◽  
Emily Kamienski ◽  
Seiichi Teshigawara ◽  
Hirofumi Itagaki ◽  
H. Harry Asada
Keyword(s):  
Gear Ratio ◽  
Ratio Optimization

3315 Dynamics Control of Truck with Parallel Cardan Drives by Traction Motor Torque

2009 ◽  
Vol 2009.18 (0) ◽  
pp. 137-140
Author(s):  
Shingo MAKISHIMA ◽  
Shinobu YASUKAWA ◽  
Masao NAGAI
Keyword(s):  
Traction Motor ◽  
Motor Torque
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