Service-oriented intelligent automobile network dormancy control method and device

The invention discloses a service-oriented intelligent automobile network dormancy control method and device, and the method comprises the steps: enabling a central arithmetic unit to carry out the communication interaction with each ECU in a service manner after a whole automobile is powered on, obtaining the network dormancy condition information of each ECU, and setting the corresponding dormancy control time according to the network dormancy condition information of each ECU; and after the whole vehicle is powered off, the central arithmetic unit judges whether each ECU is dormant or not according to the network dormancy condition information of each ECU, the dormancy control time and the actual state of the vehicle, and controls the non-dormant ECUs to enter the dormancy state. According to the invention, the dormancy condition information of each network node of the whole vehicle can be dynamically found and updated, and each ECU is actively controlled to enter dormancy according to the network dormancy