Study of EMI Stress on DC-to-DC converter based on Software Simulations

From the first electronic control unit (ECU) in the car (e.g., radio 50 years ago) to more than 80 ECUs in the car nowadays (e.g.., vehicle-to-vehicle communication - V2V, vehicle-to-environment communication - V2I, vehicle-to-everything communication - V2X and ultra-high-speed-mobile-low-latency internet) the electromagnetic interference (EMI) problems increased dramatically. In a modern self-driving car, the EMI stress is a safety critical issue. A good design of an ECU must also provide a robust concept of all safety applications in a harsh EMI environment but not only the comfort. This paper shows different developing directions of an EMI robust ECU. For better understanding, an example for studying the EMI stress on a dc-dc converter used in automotive LED light application is carried out by numerical simulations to check the robustness of the electronic system under study by compliance with the EMC requirement of the customers or the standards. (Abstract)