Test Research on Radiated Susceptibility of Automobile Electronic Control System

Research into the influences of electromagnetic radiation on automobile electronic control system (ECS) is of great significance to improve and enhance its performance under adverse electromagnetic environment. Therefore, an analog device of an ECS of a certain typed automotive engine is devised, a radiated susceptibility (RS) test is conducted, and the results are then analyzed. The test results indicate that the sensitive frequency of this ECS are HF (high frequency) and VHF (very high frequency), and when the field strength of electromagnetic radiation within the sensitive bandwidth grows to a certain degree, there will be signal derangement, signal loss and even damage to the electronic components of the ECS.