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

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  1. monitoring two cross criteria (calculated sensor signal has to cross the mean value characteristic curve twice)
  2. monitoring of delta threshold for minimum and maximum of trim control set-point (O2 CAT is a calculated value, taking 02 rear signal as a basis)
  3. 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 O2 Sensor Signals Of One Period
    G05357392Courtesy of BMW OF NORTH AMERICA, INC.
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