Patent ID: 11941384
Assignee: DENSO CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC B  G

Claim 9:
10. A data structure of specification data stored on a non-transitory storage medium and used for a computer including an instruction execution unit that is configured to acquire update data from a distribution device configured to distribute the update data and instruct a plurality of rewrite target electronic control units (ECUs) to perform at least one of installation, rollback, and activation using the update data, the data structure comprising:
device identification information to identify the plurality of rewrite target ECUs; and
group identification information to identify which group the plurality of rewrite target ECUs identified by the device identification information belong to, wherein
the group identification information identifying a group to which at least one of the plurality of rewrite target ECUs belongs is used in a process where the at least one of the plurality of rewrite target ECUs performs, as a group unit, at least one of installation, rollback, and activation; and
when the plurality of rewrite target ECUs include a rewrite target ECU having a single-bank memory and a rewrite target ECU having a double-bank memory, the process includes instructing the rewrite target ECU having the double-bank memory first to perform installation, and then instructing the rewrite target ECU having the single-bank memory last in the one of the one or more groups to perform installation.