Patent ID: 11928900
Assignee: HITACHI ASTEMO, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC G  B  H | IPC B  G

Claim 8:
9. A determination method executed by an arithmetic operation device connected to a plurality of electronic control units, wherein
one or more electronic control units of the plurality of electronic control units constitute each function, and
the determination method includes:
receiving, for each function, first verification information and first identification information of the one or more electronic control units constituting the function;
acquiring version information of software installed on the electronic control unit and second identification information of the electronic control unit from each of the plurality of electronic control units;
creating, for each function, second verification information by using the acquired version information which is the version information of all the electronic control units constituting the function and the second identification information of all the electronic control units constituting the function; and
determining, for each function, whether or not the first verification information and the second verification information match, wherein

the function configuration information includes a flag indicating that the execution in the case of mismatch is permitted or rejected for each function; and
stopping the function related to the second verification information determined to mismatch when the first verification information and the second verification information are determined not to match, the function having a flag indicating that the execution in the case of mismatch is rejected as the flag in the function configuration information,
wherein, when the first verification information and the second verification information are determined not to match, deciding whether or not to restrict the function based on the second identification information indicating which version information does not match for the function related to the second verification information determined to mismatch while referring to function restriction information, the function having a flag indicating whether the execution at the time of mismatch is permitted or not.