ELECTRONIC CONTROL UNIT, ELECTRONIC VEHICLE CONTROL SYSTEM, DIFFERENTIAL DATA CONSISTENCY METHOD AND DIFFERENTIAL DATA CONSISTENCY PROGRAM

摘要

An electronic control unit (19) contains a difference data acquisition unit (103a) which is designed to acquire difference data which is data to be written in a data storage area of the electronic control unit, the difference data being a difference between old data and new data, a consistency determination unit ( 103b) which is designed to determine whether the difference data is consistent with the data storage area or the storage data on the basis of first determination information relating to storage data stored in the data storage area and second determination information which is acquired in connection with the data storage area or the storage data, an update data recovery unit ( 103c) configured to restore update data as the new data using the difference data and the storage data when the consistency determination unit determines that the difference data is consistent, and a data writing unit (103d) configured to write the update data recovered by the update data recovery unit into the data storage area.