System and method for diagnosing an exhaust gas sensor
US12169155B2 · kind B2 · utility
0Cited by
7References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 13, 2023 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Feb 13, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2700/0287
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and system for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one example, the method determines an estimate of an exhaust gas oxygen sensor time constant according to a comparison of air/fuel ratios and a system time constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.