Installed program's modification validating method for engine control unit of motor vehicle, involves verifying coherence of new program based on updated table, and authorizing reprogramming of unit by computer if new program is coherent

摘要

The method involves receiving information of an open diagnostic data exchange type file concerning new software modules of a new program. Verification information concerning installed software modules of an installed program is received in the form of a verification table by a computer from an engine control unit. The table is updated by the computer by replacing the verification information with the file information. Internal coherence of the new program is verified based on the updated table. Reprogramming of the unit is authorized by the computer if the new program is coherent. An independent claim is also included for a system for validating modification of a program that is installed in an engine control unit (ECU) of a motor vehicle, into a new program.