Device and method for hydraulic fault self-diagnosis and hydraulic system

The invention discloses a device and method for hydraulic fault self-diagnosis and a hydraulic system. The device comprises a state acquisition module used for acquiring a plurality of state data of the hydraulic system; the data analysis module is in communication connection with the state acquisition module and is used for storing a fault tree analysis database of the hydraulic system; and the fault judgment module is in communication connection with the state acquisition module and the data analysis module, and is used for determining a fault diagnosis result of the hydraulic system according to the multiple pieces of state data sent by the state acquisition module and the fault tree analysis database sent by the data analysis module, and sending the fault diagnosis result to the data analysis module. According to the hydraulic fault self-diagnosis device, the fault diagnosis efficiency and precision of the hydraulic system are improved. 本申请公开了一种用于液压故障自诊断的装置、方法及液压系统。该装置包括：状态采集模块，用于获取液压系统的多个状态数据；数据分析模块，与状态采