分析了摆式列车倾摆控制系统的可能故障 ;提出由信号的小波变换的奇异点在多尺度上的综合表现是否有突变来检测倾摆控制系统的执行器和传感器故障并对陀螺仪故障诊断进行了计算机仿真分析。结果表明 ,小波变换法诊断摆式列车倾摆系统故障有明显的优越性 The possible failure of tilting control system of tilting train is analyzed. It is put forward that the actuator and sensor failure of tilting control system are detected and the gyroscope fault diagnosis is proposed based on whether there is a sudden change in the comprehensive performance of the singularities of the wavelet transform. Computer simulation was carried out. The results show that wavelet transform has obvious advantages in diagnosing the tilting of tilting train