| 摘要 |
<p>The method involves determining a time delay between a change of operating condition and a change of exhaust gas temperature. An aging condition of the catalytic converter is determined from the time delay. The delay between starting of changing of the operating condition for the catalytic converter and occurrence of characteristics attribute of timing temperature-profile of the exhaust gas is selected for evaluation of the aging condition of the catalytic converter. A rising edge or trailing edge of the profile or a maximum of the profile is used as the characteristics attribute.</p> |
