Patent ID: 7323974

Claim:
A method for suppressing incorrect messages in a monitoring system for sensor circuits for motor vehicles, including using a program running on a processor to perform the steps of: monitoring at least one input variable and checking whether the at least one monitored input variable exceeds a limiting value defined for the at least one input variable; deriving a fault message when the at least one input variable being monitored exceeds the limiting value defined for that at least one input variable; incrementing a counter respectively associated with the at least one input variable in response to the fault message by a first predetermined number of counter steps; checking the counter to determine whether at least one fault message is present for one of the at least one input variable; decrementing the counter for the at least one input variable by a second predetermined number of counter steps when a time period elapses without the occurrence of a fault message for that at least one input variable; performing the step of monitoring and checking for the one of the at least one input variable if it is determined that at least one fault message is present for the one of the at least one input variable in said step of checking the counter; and triggering an alarm only if the counter reaches an alarm limit for the at least one input variable.