Fault diagnosis device and method for giant magnetostrictive brake-by-wire system

The invention discloses a giant magnetostrictive brake-by-wire system fault diagnosis device and method. The giant magnetostrictive brake-by-wire system fault diagnosis device comprises a brake state detection unit, a brake action detection unit, a current detection unit, a brake displacement detection unit, a brake displacement transmission detection unit, a tire detection unit and a calculation unit. On the basis of the giant magnetostrictive brake-by-wire system, various sensors are used for detecting components of each brake system in the braking process, and then faults are diagnosed based on sensor data; the device is easy to integrate with an existing giant magnetostrictive brake-by-wire system, and is easy to realize. 本发明公开了一种超磁致伸缩线控制动系统故障诊断装置及方法，包括：制动状态检测单元、制动动作检测单元、电流检测单元、制动位移检测单元、制动位移传递检测单元、轮胎检测单元及计算单元；本发明在超磁致伸缩线控制动系统的基础上，在制动过程中使用多种传感器对各制动系统组成部分进行检测，再基于传感器数据对故障进行诊断；该装置易与现有超磁致伸缩线控制动系统整合，利于实现。