Vehicle master device, vehicle electronic control system, configuration setting information rewrite instruction method, and configuration setting information rewrite instruction program product

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.

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, when instructing one of the rewrite target ECUs to rewrite both the program and the configuration information, instruct the one of the rewrite target ECUs to rewrite the configuration information after installation of a new program into the one of the rewrite target ECUs was completed.

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.

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, wherein the rewrite specification data indicates whether rewriting of the rewrite target ECU is rewriting of a program or rewriting of configuration information;
• determine whether the program is to be rewritten or the configuration information is to be rewritten based on the rewrite specification data;
• instruct the rewrite target ECU 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 ECU to overwrite 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.

A configuration information rewrite instruction method implemented by 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 the program is to be rewritten or the configuration information is to be rewritten based on the rewrite specification data;
• instruct the rewrite target ECU 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 ECU 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, the method comprising:
• specifying an order for instructing the rewrite target ECUs to write the update data based on the rewrite specification data.

A configuration information rewrite instruction method implemented by 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 method comprising:

• downloading rewrite specification data and update data from the center device upon determining that there is a campaign notification from the center device, wherein the rewrite specification data indicates whether rewriting of the rewrite target ECUs is rewriting of a program or rewriting of configuration information;
• determining whether the program is to be rewritten or the configuration information is to be rewritten based on the rewrite specification data;
• instructing the rewrite target ECU 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
• instructing the rewrite target ECU to overwrite 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.