Online monitoring and diagnostics in vehicle powertrains
US11624334B2 · kind B2 · utility
0Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2022 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems for calculating a plurality of aging factors in a system operating an engine. The calculated aging factors may include one or more of fuel injector drift, exhaust gas recirculation valve obstruction, and mass air flow sensor bias. Mass flow throughout the system, and pressures and temperatures within the system, are observed in an approach that relies on mass preservation concepts to estimate fuel injector drift, exhaust gas recirculation valve obstruction, and mass air flow sensor bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.