Electric Vehicle Electromagnetic Compatibility Testing and Electromagnetic Emission Mitigations

Amidst the rapidly evolving landscape of road transportation, the imperative for sustainable and eco-friendly solutions is underscored by global regulations aimed at reducing CO2 emissions from vehicles. This heightened global awareness thrusts electric vehicles (EVs) into the forefront. While transitioning to EVs promises a reduction in CO2 emissions compared to conventional vehicles, it also raises concerns regarding electromagnetic compatibility (EMC) assurance. This study initiates by examining electromagnetic compatibility standards and testing requirements for electric vehicles. Then, technical approaches and critical factors such as grounding strategy, cable routing considerations and electromagnetic shielding to mitigate electromagnetic emissions are investigated. After that, vehicle-level EMC testing and assessment of electromagnetic emissions from an electric vehicle is conducted, in compliance with UNECE regulation no. 10. Radiated and conducted emissions are measured during EV charging by following CISPR 12 standard. It is obtained that the measurements of emission testing conform to the specified limits delineated in CISPR 12. Consequently, the electric vehicle under examination successfully meets both radiated and conducted emissions requirements.