Study of FlexRay Bus Test Methods

FlexRay bus is widely used in applications due to its efficient network utilization and system flexibility characteristics, but variations in physical transmission characteristics in complex usage environments can lead to unstable communication quality. In this paper, the test methods for FlexRay physical layer testing are analysed, test evaluation items such as insertion loss, return loss, crosstalk, characteristic impedance and eye diagram are proposed, a test equipment is designed and the metrics are verified.