Patent ID: 11967188
Assignee: AUTONETWORKS TECHNOLOGIES, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC G

Claim 6:
7. A program update method comprising:
obtaining update information regarding a plurality of updates and an update program that are transmitted from an outer-vehicle external server;
determining, based on the update information, a transmission order in which update programs respectively corresponding to the plurality of updates are to be transmitted to the vehicle-mounted ECU;
transmitting the update program corresponding to a single update of the plurality of updates and a self-diagnosis processing program for the vehicle-mounted ECU to perform self-diagnosis processing to the vehicle-mounted ECU, based on the determined transmission order;
determining success or failure of the single update of the vehicle-mounted ECU based on a result of the self-diagnosis processing performed by the vehicle-mounted ECU according to the self-diagnosis processing program;
transmitting the update program next in the transmission order to the update program corresponding to the single update to the vehicle-mounted ECU, if the single update is determined as having succeeded; and
interrupting the plurality of updates without transmitting the update program next in order to the vehicle-mounted ECU, if the single update is determined as having failed.