Inlet air temperature sensor diagnostics
US9114796B2 · kind B2 · utility
4Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for diagnosing an intake air temperature sensor in a hybrid electric vehicle. An engine temperature is compared to each of an intake air temperature sensed before an engine start but after sufficient engine soak, as well as an intake air temperature sensed after selected vehicle operating conditions have elapsed since the engine start. Based on discrepancies between the air temperature and the engine temperature, degradation of the sensor is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.