Patent ID: 6629022
Filing Date: 2003-09-30
Classification: G05B

Abstract:
A motor vehicle control unit,having a microprocessor, having a non-volatile program memory storing at least one control program routine for controlling a system which is connected to the control unit and at least one monitoring program routine for continuously or occasionally monitoring the system, and having a volatile or erasable non-volatile monitoring result memory storing one or more monitoring results ((Fi, ti), i=1, 2. . . ) calculated from monitoring data, obtained from the system, by means of the microprocessor when passing through the monitoring program routine, characterized in that the control unit also contains a non-volatile, writable backup memory, and in that the calculated monitoring results or a part thereof ((F1, t1), . . . , (F4, t4)) can be transferred to the non-volatile, writable backup memory.