전자 제어 공 기현가 장치의 높이 센서 고장 진단

Height sensor is used in many vehicle suspension system.. This paper presents a method to diagnose height sensor fault for Electronic Air Suspension System. This approach is assuming that height sensors are attached at 4 corners of vehicle body and a sensor fault occurs at one of 4 height sensor. In this paper, fault detection performed only with height sensors and fault isolation with the roll angle and pitch angle which might be estimated using other sensors such as acceleration sensor. yaw rate sensor, wheel speed sensor. The fault detection and isolation method proposed in this paper are verified by the simulation.