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

Claim 3:
4. A vehicle electronic control system, comprising:
a vehicle master device that is configured to distribute update data received from a center device to a rewrite target electronic control unit (ECU) and to instruct the rewrite target ECU to write the update data; and
an electronic control device (ECU) that is configured to rewrite a program in a non-volatile memory using the update data received from the vehicle master device, wherein
the vehicle master device includes at least one processor configured to:
download rewrite specification data, reprogramming data, and new configuration setting information from the center device upon determining that there is a campaign notification relating to a program update based on a notification from the center device;
determine whether an application program is to be rewritten or configuration setting information is to be rewritten based on the rewrite specification data;
instruct the rewrite target ECU to rewrite the application program upon determining that the application program is to be rewritten;
determine a designated method for rewriting the configuration information based on the rewrite specification data;
upon determining that the configuration setting information is to be rewritten, instruct the rewrite target ECU to rewrite the configuration setting information during rewriting of the application program if the designated method is a method for rewriting the configuration setting information during rewriting of the application program; and
upon determining that the configuration setting information is to be rewritten, instruct the rewrite target ECU to rewrite the configuration information after rewriting of the application program if the designated method is a method for rewriting the configuration setting information after rewriting of the application program.