ECU control system and ECU control method

Abstract

A management ECU 30 in an ECU control system 100 executes a function improvement process for installing software from outside a vehicle via OTA in order to improve a function executed by software, executes a function improvement process for installing software from outside the vehicle via OTA in order to add a function in response to a user request, and executes the function improvement process with priority over a function addition process in accordance with the degree of importance of the function improvement process when the processing time of the function addition process and the processing time of the function improvement process overlap.

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