This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Study on Heat Dissipation of Electric Vehicle Motor Based on Heat-Pipe Heat Transfer Analysis
Technical Paper
2021-01-0208
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
With the increasingly serious problems of environmental pollution and energy shortage, electric vehicles have a promising future. As a core component of electric vehicles, the drive motor is developing towards high power density of which remains temperature rise problems, which affects the performance, efficiency and service life of the drive motor. Liquid cooling has high energy consumption and poor reliability. The heat-pipe has excellent heat conduction and temperature uniformity capabilities. Therefore, this paper proposes a heat pipe-based drive motor heat dissipation system to make the heat-pipe act on the inside of the motor to reach a specified range of driving conditions. The drive motor can better dissipate heat through the heat-pipe. Firstly, analysis of the internal heat generation mechanism of the motor, heat transfer characteristics of the heat-pipe and the heat-pipe layout plan was established. The motor heat transfer model and the vehicle dynamics model is designed to simplify the driving condition of the car to a constant driving speed condition and improve the heat dissipation efficiency, as well as the overall motor analysis of the heat dissipation performance. The results demonstrate that the use of the heat dissipation method in this paper improved the reliability of the drive motor cooling system and the overall efficiency of the drive motor under the same operating conditions. By comparing the temperature values of motors with and without heat pipes at certain vehicle speeds, it is found that the temperature of each node of the internal thermal network of the motor with heat pipe cooling is reduced by about 5-7° at the highest. Under the same working conditions of the vehicle, the heat pipe can make the electric vehicle work at a higher speed at a constant speed, which can increase the vehicle speed by 6.0 km/h. This paper considers the heat dissipation of permanent magnet synchronous motors for vehicles based on heat-pipe heat transfer. It shows that the extra heat-pipes heat dissipation scheme can effectively reduce the internal temperature of the motor during operation and provide a reference for improving the stability of the motor heat dissipation system.
Recommended Content
Authors
Topic
Citation
Liu, L., Tan, G., Zhou, F., Sun, M. et al., "A Study on Heat Dissipation of Electric Vehicle Motor Based on Heat-Pipe Heat Transfer Analysis," SAE Technical Paper 2021-01-0208, 2021, https://doi.org/10.4271/2021-01-0208.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Wei , Y. , Meng , D. , and Wen , J. Heat Exchange in the Motor China Machine Press 1998
- Liu , Y. 2014
- Han , W. , Lei , B. , Li , Z. , and Li , H. The Summary of Cooling Mode for the Installation like Electromagnetism Machine Equipment Manufacturing Technology 9 116 118 2009
- He , W. 2013
- Liu , Y. 2014
- Wang , Q. , Han , B. , Wang , P. , Li , F. et al. Motor Cooling System Design and Optimal Cooling Temperature Control of Electric Vehicle Journal of Jilin University (Engineering and Technology Edition) 1 1 6 2015
- Huang , S. , Tan , G. , Kuang , J. et al. Analysis of Passive Low Power Phase Change Heat Dissipation Method for Electric Vehicle Motor SAE Technical Paper 2019-01-1256 2019 https://doi.org/10.4271/2019-01-1256
- Sun , Y. , Chen , L. , and Bao , X. The Effect of the Screw Holes in the Stator Yoke of Induction Motors on the Three-Phase No-load Current Balance and Stator Iron Loss Transactions of the Electrical Engineering Society 10 10 69 74 2015
- Liu , W. 2016
- Han , X. , Zhang , H. , Jia , J. et al. Thermal Analysis of Axial Flux Permanent Magnet Motor Based on Equivalent Thermal Network Method Micromotor 49 04 6 10 2016
- Wang , X. Permanent Magnet Motor China Electric Power Press 2011
- Wang , W. 2014
- Zhang , J. and Yong , J. Thermal Analysis of Fixed-Frequency Dual-Rotor Permanent Magnet Wind Turbine Based on Equivalent Thermal Network Method Transactions of the China Electro Technical Society 30 02 87 97 2015
- Yuan , J. , Han , J. , and Su , H. Design of Front-End Air Intake System for Pure Electric Vehicles Auto Parts 07 76 78 2019
- Mo , C. and Li , Q. Heat Transfer and Heat Dissipation Analysis of Heat Pipes Journal of Maoming University 03 31 34 2006
- Liu , W. , Zhang , S. , and Li , C. Matching and Simulation of Power Performance Parameters of Pure Electric Vehicles Journal of Shanghai University of Engineering Science 30 01 46 50 2016