ELECTROMAGNETIC COMPATIBILITY DESIGN FOR POWERTRAIN CONTROL MODULE (PCM)

摘要

Design for electromagnetic compatibility (EMC) is an issue which has rapidly increased in importance in recent years, driven by legal, reliability and commercial demands. This paper analyzed working principle and electromagnetic (EM) characters of signals adopted by a typlcal powertrain control module (PCM). By using measures such as shielding, cabin dividing, grounding, power protecting and drive cable interference suppressing, the conducted emission is reduced by 20dB; meanwhile, the radiated emission is reduced by 30dB compared to system without any measurements. Finally, the EMC authentication corresponding to ground military equipments in US MH-STD-461D has been achieved.