Exhaust control device of internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 8, 1997
Grant Date -
N/A
app pub date -
Dec 26, 1995
filing date -
Dec 26, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The leak of exhaust system is detected by leak detection element, and when leak was detected, the diagnosis relating to air-fuel ratio feedback control or catalyst is stopped or corrected. A place and an amount of the leak are detected and as various control or diagnosis etc. are stopped or corrected according to the detected effect, over heat of the catalyst, incrementation of the harmful exhaust-gas and the false diagnosis of the catalyst can be prevented suitably.
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