Research on Fault Diagnosis of Hydraulic Oil Leakage in the ABS System of Automobile

: At present, the self-test of ABS system cannot detect faults in mechanical parts, such as solenoid valve clamping and hydraulic oil leakage. In an indoor environment, a dynamic monitoring system is built that uses sound signals, vibration signals and pressure signals to detect mechanical parts of the ABS system. The hydraulic oil leakage failure will cause the oil pressure to decrease, fail to meet the working conditions of the hydraulic system, and reduce the working efficiency. In severe cases, the hydraulic system may even fail, which may cause the ABS system to malfunction and cause a traffic accident. The mechanical fault diagnosis of the automotive ABS system is an important way to ensure the safe operation of the vehicle and the good performance of the ABS system .