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14 October 2021 Electromagnetic coupling prediction for the low voltage wire harness of electric vehicle
Guiying Ren, Mingli Zhao, Zilong Wang, Chong Wang, Jiajia Guo, Dongsheng Wang
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Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 119302Q (2021) https://doi.org/10.1117/12.2611045
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China
Abstract
Multi-port network theory can simplify complex systems by the equivalence of ports. Therefore, the wiring harness model is equivalent to the port network in the electromagnetic coupling prediction for the low-voltage wiring harnesses of electric vehicle. The scattering parameters between the ports of the wire harness are obtained by simulation in Feko, then the characteristics of the wire harness coupling network can be established. According to the relationship between the voltage and current of ports, the voltage and current prediction formula of the interfered harness port is derived. Comparing the port current of the interfered harness collected from the vehicle with the current obtained from the simulation, and qualitatively analyzing whether there is a risk of electromagnetic interference, it verified the effectiveness of the multiport network method to predict the electromagnetic coupling between the wiring harnesses. To a certain extent, the EMC performance of the vehicle can be guaranteed if the method is applied to the vehicle development stage.
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Guiying Ren, Mingli Zhao, Zilong Wang, Chong Wang, Jiajia Guo, and Dongsheng Wang "Electromagnetic coupling prediction for the low voltage wire harness of electric vehicle", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 119302Q (14 October 2021); https://doi.org/10.1117/12.2611045
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KEYWORDS
Electromagnetic coupling
Electromagnetic interference
Electromagnetism
Safety
Vehicle control
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