Multi-mode graded fault reconstruction method

The embodiment of the invention provides a multi-mode graded fault reconstruction method, and the method comprises the steps: health monitoring logic is used for monitoring the working state of each module in a main and co-driver display unit, generating a fault code, and respectively reporting the module fault code to system management of the main and co-driver display unit through a monitoring bus; the fault level judgment logic divides system software and hardware faults into first-level system-level faults and second-level partial acquisition circuit faults; according to data cross transmission path planning management, system management realizes multi-mode fault online planning of a transmission path according to a fault code reported by health monitoring logic by adopting a reverse traversal searching method based on the principle of reconstructing normal display of at least one display unit, and informs a module of opening or closing a data reconstruction channel through a monitoring bus; and the data