System and method for detecting an air leak in an exhaust system coupled to an engine
US6568246B1 · kind B1 · utility
7Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for detecting an air leak within an exhaust system is provided. The method includes measuring an exhaust gas constituent in exhaust gases from the engine when the engine is operating in an idle operating mode. The method further includes determining whether the air leak is present in the exhaust system based on a measured exhaust gas constituent, a first air-fuel correction value, and a second air-fuel correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.