发明名称 |
Method and system of testing the proper functioning of a catalyzed particulate filter of an internal combustion engine |
摘要 |
A method of testing the proper functioning of a catalyzed particulate filter of an internal combustion engine during regeneration of the catalyzed particulate filter is disclosed. A first value of an oxygen concentration in an exhaust gas upstream of the catalyzed particulate filter and a second value of an oxygen concentration in the exhaust gas downstream of the catalyzed particulate filter is measured during regeneration. The difference between the first value and the second value is calculated and a malfunctioning of the catalyzed particulate filter is indicated when the calculated difference is below a predetermined threshold value thereof. |
申请公布号 |
GB201509638(D0) |
申请公布日期 |
2015.07.15 |
申请号 |
GB20150009638 |
申请日期 |
2015.06.03 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC |
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