Automobile function failure analysis method, system and equipment based on fault tree and medium

The invention discloses an automobile function failure analysis method, system and device based on a fault tree and a medium, and the method specifically comprises the steps: traversing each related item function in a whole vehicle system, and carrying out the failure influence analysis of a component corresponding to each related item function based on the fault tree to determine a component failure mode, the fault tree takes the related item function violation safety target as a top event, and takes component failure, input component failure and transmission component failure as intermediate events of the fault tree; and judging whether each component failure mode violates a corresponding safety target or not, matching a corresponding safety mechanism for the component failure mode violating the safety target, and summarizing and outputting a corresponding FMEA analysis table for each related item in the whole vehicle system. According to the invention, a comprehensive failure mode and a complete safety mec