This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Simulation Study on the Influence of the Shielding Mechanism of the Battery Pack Shell on the Vehicle Radiation Emission
Technical Paper
2021-01-0149
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
From the perspective of the three elements of electromagnetic interference, the main function of shielding is to cut off the propagation path of electromagnetic noise. The battery pack casing can be regarded as shielding the electromagnetic interference conducted on its internal and external wiring harnesses, but because the battery pack casing has power lines in and out, the battery pack casing is an incomplete shield. In the field of electromagnetics, shielding can be divided into electrical shielding, magnetic shielding and electromagnetic shielding. Therefore, this paper studies its influence on the electromagnetic radiation emission of the whole vehicle from the perspective of shielding mechanism.
Due to the role of the switch components in the power battery system, strong current fluctuation di/dt and voltage fluctuation dv/dt will be generated on the power cable, and these interferences will have an important impact on the radiation emission of the vehicle. This paper analyzes the mechanism of electromagnetic shielding, and uses the three-dimensional electromagnetic field simulation software CST to establish a vehicle radiation model. Based on the electromagnetic shielding mechanism, different materials, thicknesses, and structures of battery pack shells and internal wiring harnesses are incorporated into the vehicle electromagnetic radiation emission model. In the simulation study, the influence of the shielding of different battery pack shells on the radiation emission of the whole vehicle is studied, and the simulation results have a good reference significance for suppressing the radiation emission of the whole vehicle.
Authors
Topic
Citation
Zhang, J., Wang, J., and Lv, X., "Simulation Study on the Influence of the Shielding Mechanism of the Battery Pack Shell on the Vehicle Radiation Emission," SAE Technical Paper 2021-01-0149, 2021, https://doi.org/10.4271/2021-01-0149.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- Cai , L. , Zeng , Y.L. , Su , B.W. et al. Electromagnetic Compatibility Detection Analysis and Optimization and Improvement Ideas Communication Power Technology 35 8 168 171 2018 10.19399/j.cnki.tpt.2018.08.070
- Zhang , J. , Lv , Y. , and Shen , M. The Dynamic Electromagnetic Distribution and Electromagnetic Interference Suppression of Smart Electric Vehicle SAE Technical Paper 2019-01-1061 2019 10.4271/2019-01-1061
- Wen , Y.H. , Zhou , K.S. , and Cui , Y. Electromagnetic Field and Electromagnetic Compatibility Beijing Science Press 2010 238 251
- Zhang , J. , and Lv , Y. High Frequency Impedance and Electromagnetic Interference Suppression of Lithium-Ion Power Battery Pack SAE Technical Paper 2019-01-1060 2019 10.4271/2019-01-1060
- Wang , Y.F. , Wen , Q. , Zhao , X.H. et al. The Research of Vehicle Electromagnetic Shielding Effectiveness in High Power Electromagnetic Pulse IEEE International Conference on Information Management and Engineering (ICIME) 2010, CN, April 16-18 2010
- Hosseinipour , M. , Soorki , M.N. , and Ahmadian , M. On Effective Electromagnetic Shielding of Modern Pulse Width Modulating Adjustable Speed Drives IEEE Transactions on Electromagnetic Compatibility 60 4 875 884 2018 10.1109/TEMC.2017.2738840
- Wang , C.Q. , Sun , X.M. , Cai , C. et al. Electromagnetic Compatibility of Metallic Enclosure of EV Battery Management System Based on FEM Electrical Engineering and Electronics Engineering 238 963 971 2013