Control method of exhaust emission purification system and exhaust emission purification system
US8307629B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Oct 27, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust emission purification system and a related method of control, wherein an exhaust throttle valve is opened if an engine load reaches at least a predetermined first judgment value during execution of forced regeneration control, and generating an alarm of failure of the exhaust throttle valve if the engine load reaches at least a second judgment value which is larger than the predetermined first judgment value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.