Systems and methods for characterization of aged fuel for an engine cold start
US10865724B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Aug 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0088
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for characterizing aged fuel, which loses volatility over time. In one example, a method may include estimating a fuel vapor pressure during an engine cold start using a pre-determined fuel distillation curve and adjusting one or more combustion parameters based on the estimated fuel vapor pressure. Because the fuel vapor pressure directly relates to the fuel volatility, adjusting the one or more combustion parameters based on the estimated fuel vapor pressure may reduce aged fuel-related engine performance degradation, such as hesitation and emissions during cold start.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.