Method for checking and, if necessary, improving the setting of at least one parameter of a
control unit monitoring function of a vehicle
diagnostic system, taking into account at least one robustness indicator, in particular taking into account four robustness indicators, - where at least one robustness parameter R z [n] is calculated according to the following equation: R z [ n ] = 1 r max_pos / max_neg ⋅ N 0 ∑ i = n n+N 0 ri - where r max_pos / max_neg the largest positive or largest negative distance value when monitoring against a positive or a
negative deviation is, - where N0 is the number of data points in the
data series that represents the
minimum time, in particular the debounce time, for error detection, - where n is an element of a
data series of consecutive feature values, - where r ithe distance of a characteristic value from a positive or
negative error threshold, determined on the basis of the raw distance, - where the setting of at least one parameter is retained if the calculated value R z or the calculated values R z above a minimum robustness index R z,min lies / lie - and where the setting of at least one parameter is adjusted when the calculated value R z or the calculated values R z below the minimum robustness index R z,min lies / lie or the calculated value R z or the calculated values R z the minimum robustness index R z,min corresponds / correspond to, - wherein, in order to check the setting of at least one parameter, the results of the
control unit monitoring function are calculated by inputting an input
data set of a functioning
system and an input
data set of a non-functioning
system into the
control unit monitoring function, characterized in that - that, to check the setting of at least one parameter, the results determined by the control unit monitoring function are compared with certain values of a characteristic of a functioning
system, and, to monitor against a positive error threshold exceedance, a value R is calculated. z,max_threshold,False Fail to check whether a functioning system is incorrectly identified as non-functional, - that, in order to verify the setting of at least one parameter, the results obtained by the control unit monitoring function are compared with certain values of a characteristic of a functioning system for monitoring against a
negative error threshold undercutting by calculating a value R z,min_threshold,False Fail to check whether a functioning system is incorrectly identified as non-functional, - that, in order to verify the setting of at least one parameter, the results determined by the control unit monitoring function are compared with certain values of a feature of a non-
functional system for monitoring against a positive error threshold undercutting by calculating a value R z,max_threshold,False Pass to check whether a non-
functional system is incorrectly identified as functional, - and that, to verify the setting of at least one parameter, the results obtained by the control unit monitoring function are compared with certain values of a feature of a non-
functional system for monitoring against a
negative error threshold exceedance by calculating a value R z,min_threshold,False Pass It should be checked whether a non-functional system is incorrectly identified as functional.