System and method for exhaust gas sensor monitoring
US11649780B1 · kind B1 · utility
1Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2022 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jun 13, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- 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 adjusts an estimate of an exhaust gas oxygen sensor delay time based on a fuel injection ramping time. The fuel injection ramping time compensates for fuel that is injected to the engine while the engine enters or exits a fuel cut-off mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.