Systems and methods for relative humidity sensor diagnostics
US11306670B1 · kind B1 · utility
0Cited by
9References
20Claims
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Key dates
| Filing date | Jan 4, 2021 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 4, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for diagnosing a humidity sensor in an engine. In one example, a method may include heating intake air entering an intake passage of an engine using heat recirculated from an exhaust system of the engine. A response of the humidity sensor to the heating of the intake air may be used to assess an integrity of the humidity sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.