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US 6,145,302 AGranted
Method for monitoring a catalytic converter
AssigneeSiemens Aktiengesellschaft
InventorsHong Zhang, Johannes Beer
Life of this patent
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Abstract
A method for monitoring a catalytic converter includes ascertaining a measured variable at the catalytic converter and comparing it with a comparison value. The comparison value is ascertained in accordance with a model that uses at least one parameter of a comparison catalytic converter. The parameter of the comparison catalytic converter is adapted on the basis of a measured variable of the catalytic converter to be monitored.
Claims11
A method for monitoring a catalytic converter having a catalytic layer, which comprises:
- ascertaining a measured variable at a catalytic converter to be monitored;
- ascertaining a comparison value in using a model, the comparison value depending on at least one parameter of the catalytic converter;
- comparing the measured variable with the comparison value;
- and
- adjusting the at least one parameter of the model of the catalytic converter on the basis of the measured variable of the catalytic converter.
2 more elements
Dependencies are inferred from the claim text.