Oxygen sensor control responsive to resistance and impedance
US9664132B2 · kind B2 · utility
1Cited by
10References
19Claims
0Family size
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Key dates
| Filing date | Dec 12, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jul 8, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various methods are provided for operating an oxygen sensor. In one example, a method of operating an oxygen sensor including a heater comprises sampling a first heater resistance at a first temperature, and determining a resistance-temperature transfer function relating heater resistance to heater temperature based on the first heater resistance and a second heater resistance at a second temperature, the second temperature different from the first temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.