Patent ID: 11886857
Assignee: DENSO CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 15:
16. A center device that is configured to administer data to be written in a plurality of electronic control units (ECUs) mounted in a vehicle, the center device comprising at least one processor programmed to:
store update data for an update target ECU that is a target ECU for a program update among the plurality of ECUs;
store, together with a type of the vehicle, vehicle-related information related to a device identification for each of the plurality of ECUs and identification for data stored in each of the plurality of ECUs;
store update data-related information related to an attribute of the update target ECU and the update data; and
generate specification data based on the stored type of the vehicle and the stored vehicle-related information and the stored update data-related information, wherein
the specification data is data to be distributed to the vehicle together with the update data to be written in the update target ECU and includes a type of the update target ECU, the attribute of the update target ECU, the update data-related information for the update target ECU, and information indicative of a rewrite environment related to the data update of the update target ECU, wherein
when the update target ECU are a plurality of update target ECUs, the at least one processor is further programmed to:
generate the specification data as one file for the plurality of update target ECUs;
store, as the attribute of each of the plurality of update target ECUs, information related to a connection power supply of each of the plurality of update target ECUs or information related to a memory of each of the plurality of update target ECUs; and
generate the specification data including, as the attribute of each of the plurality of update target ECUs, the information related to the connection power supply of each of the plurality of update target ECUs or the information related to the memory of each of the plurality of update target ECUs, wherein

the information related to the connection power supply is information indicating that a power supply connected to each of the plurality of update target ECUs is one of a battery power supply, an accessory power supply, or an ignition power supply, and
the information related to the memory is information indicating that a memory structure of each of the plurality of update target ECUs is a single-bank memory or a double-bank memory.