Inversion restart automatic test method and device for train transmission control unit

The invention discloses an inversion restart automatic test method and device for a train transmission control unit. The method comprises the steps: S1, generating a corresponding control signal according to a target operation condition needing to be simulated, and transmitting the control signal to a tested DCU so as to control the tested DCU to operate under the target operation condition; S2, generating a required interference signal according to a target interference working condition needing to be simulated, and sending the interference signal to the tested DCU so as to control the testedDCU to be under a target interference working condition; and S3, sending a power-off instruction to the tested DCU, sending a restart instruction to the tested DCU after the tested DCU is powered off, obtaining the operation state of the tested DCU after the tested DCU executes restart, and obtaining and outputting a test result. The device comprises an operation condition simulation module, an interference condition sim