Exhaust heat recovery system abnormality detection device
US8146344B2 · kind B2 · utility
4Cited by
8References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2005 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jul 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An ECU executes a program including the steps of: when a switching valve is controlled to be closed, comparing exhaust gas's temperature, as detected, with a map value; if the exhaust gas's temperature is larger than the map value, determining that the switching valve normally operates; and if the exhaust gas's temperature is smaller than the map value, determining that the switching valve has abnormality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.