Simulation and Measurement of Narrowband Susceptibilities of Digital Automotive Sensors

Automotive sensors need to fulfill severe electromagnetic compatibility (EMC) requirements. To improve the robustness of a sensor in early product development stages, an accurate immunity simulation is essential. Furthermore, a fast and reliable broadband immunity measurement to cover all sensor susceptibilities is necessary. In this paper, a new approach to simulate the digital output values of a pressure sensor in a closed-loop Bulk Current Injection (BCI) procedure is introduced. In addition, a sensor specific measurement method of both high accuracy and short test time is presented. Finally, the simulations are validated with measurements using automotive pressure sensors.