Method for estimating charge air cooler condensation storage and/or release with two intake oxygen sensors
US9732690B2 · kind B2 · utility
13Cited by
10References
11Claims
0Family size
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Key dates
| Filing date | Mar 20, 2017 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Mar 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, engine operation may be adjusted responsive to water storage parameters at the CAC, the water storage parameters based on an output of a first oxygen sensor positioned downstream of the CAC and a second oxygen sensor positioned upstream of the CAC. Further, operation of the first oxygen sensor and the second oxygen sensor may be diagnosed during certain engine operation conditions wherein no condensate is forming in the CAC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.