CENTRAL DEVICE, SPECIFICATION DATA GENERATION METHOD, AND PROGRAM FOR GENERATING SPECIFICATION DATA

摘要

An ECU reprogramming data database 204 of a central device 3 stores data of an update program for an ECU 19, amongst a plurality of ECUs 19 installed in a vehicle, of which an application program is to be updated. A configuration information database 208 stores, along with the vehicle type, an "ECU ID" corresponding to each ECU 19 and vehicle-related information such as an "ECU SW ID" for each application program stored in the ECU 19. An ECU metadata database 205 stores update data-related information pertaining to update data and attributes of the ECU 19 to be rewritten. A specification data generation unit 201 generates, on the basis of the information stored in the configuration information database 208 and the ECU metadata database 205, specification data to be transmitted to the vehicle together with update data to be written to the target ECU 19, such that the data includes information pertaining to the type, attributes and update data for the target ECU 19, and information indicating the rewrite environment pertaining to the data update.