An electronic control system and method for checking the correct function of a computer unit in an electronic control system

摘要

In an electronic control system (11) with at least two control units (12, 13), which via a data bus (14) are connected, each control unit, a microcontroller (15, 17) with an arithmetic unit (16, 18), checks one be tested control unit (12) the correct function of a checked control unit (13). The checking control unit (12) sends a test request to the tested control unit (13). The tested control unit (13) is determined by a functional result is obtained from the calculation of a checking function is integrated in the computer unit (18) of the tested control unit (13) and sends a response to the test query with the function result to the checking control unit (12). The checking control unit (12) compares the function result is intended to - function result with a.