1.1.3 Validation of the calculated sensor signals (O2_cat_i) of one period

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monitoring two cross criteria (calculated sensor signal has to cross the mean value characteristic curve twice)
monitoring of delta threshold for minimum and maximum of trim control set-point (O2 _CAT is a calculated value, taking O2 rear signal as a basis)
difference of mean value of the calculated sensor signals related to one period to the next one [(O2_CAT_MVn) -(O2_CAT_MVn-1)]

Fig 1: Validation Of Calculated Sensor Signals Diagram
Courtesy of BMW OF NORTH AMERICA, INC.

Variables list:

CAT DIAGNOSIS RESULT REFERENCE

Siemens Parameter SAM/Specification	Description
EFF_CAT_DIAG	result value of cat diagnosis
CTR_CAT_DIAG	counter increment