Patent ID: 11960875
Assignee: DENSO CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC G

Claim 6:
7. A vehicle master device that is configured to distribute update data received from a center device to a plurality of rewrite target electronic control units (ECUs) and to instruct the rewrite target ECUs to write the update data, the vehicle master device comprising:
at least one processor that is configured to:
download rewrite specification data and update data from the center device upon determining that there is a campaign notification from the center device;
determine whether a program is to be rewritten or configuration information is to be rewritten based on the rewrite specification data;
instruct the rewrite target ECUs to rewrite the program with reprogramming data, which is the update data downloaded from the center device, upon determining that the program is to be rewritten; and
instruct the rewrite target ECUs to rewrite the configuration information with new configuration information, which is the update data downloaded from the center device, upon determining that the configuration information is to be rewritten, wherein

the at least one processor is further configured to specify an order for instructing the rewrite target ECUs to write the update data based on the rewrite specification data.