Method for monitoring a subsystem installed in a motor vehicle

摘要

A method for monitoring a subsystem installed in a motor vehicle involves a diagnostic unit checking the subsystem for system errors at least during driving cycles of the motor vehicle, the check being carried out for an occurrence as well as for a correction of a system error. The diagnostic unit carries out a misuse assessment based on a frequency of detection of the occurrence and/or the correction of the system error in order to determine whether the detected occurrence and/or the detected correction of the system error is/are based on misuse. If occurrence of the system error is detected, a restricted operating mode is activated or an activated restricted operating mode is continued in which drivability of the vehicle is restricted after a predefinable number of driving cycles has elapsed or after a predefinable travel distance has passed without the correction of the system error being detected.

主权项

1. A method for monitoring a subsystem installed in a motor vehicle, the method comprising:
checking, by a diagnostic unit, the subsystem for system errors at least during driving cycles of the motor vehicle, wherein the check is performed for an occurrence of a system error and a correction of the system error; performing, by the diagnostic unit, a misuse assessment based on a frequency of detection of the occurrence and the correction of the system error in order to determine whether the detected occurrence and the detected correction of the system error is based on misuse, wherein misuse is the occurrence of the system error or the correction of the system error due to an intervention in the subsystem impermissibly carried out by a user of the motor vehicle, activating a restricted driving mode or continuing an activated restricted driving mode if occurrence of the system error is detected, wherein in the restricted driving mode drivability of the vehicle is restricted after
a predefined number of driving cycles has elapsed without the correction of the system error being detected, ora predefined travel distance has passed without the correction of the system error being detected.