The Research On Fault Diagnosis System Of Car Suspension

With the development of automobile industry, the car driving control performance and the requirements of the ride comfort are getting higher and higher by people. The function of suspension system is to support the body and improve on comfort feeling, and different suspension setting will make drivers have different driving experience. Suspension performances affect not only the ride comfort and the car driving safety, but also to the car driving safety, steering stability, passing ability and fuel economy in varying degrees. Due to suspension system structure is complicated and the installation position is particular, fault diagnosis is very difficult. At present, suspension detection is still stay in the diagnosis of artificial experience. It will waste time and undeserved maintenance will cause new fault and increase the maintenance cost. So the suspension fault diagnosis system has an important significance.For this article, it mainly around the research of the car suspension fault detection and diagnosis. In the paper, first, it analysises the situation of suspension fault diagnosis in the domestic and foreign as well as performance test methods of car suspension. Then based on the suspension structure and characteristics, it determines the fault phenomena and fault location through to the research of suspension common fault mechanism. Again, through the analysis of the vehicle testing and the failure instance in the maintenance company, it finds out the regularity of suspension failure and it maps out the various fault diagnosis flow chart through to malfunction examples combine with the operation procedures. Finally, it sets up the suspension fault diagnosis system in the aforementioned study. The system combines the analysis of experimental test parameters and expert advice. Users can diagnosis suspension faults for simple operation. The system can be applied to maintenance enterprise. It has strong practicability and easy to use to promotion. With the development of automobile industry and increasing possession, it will bring a lot of social and economic value.