Controlling an internal combustion engine system
US11215132B1 · kind B1 · utility
2Cited by
81References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Dec 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A first pressure upstream of a throttle is received. A temperature upstream of the throttle is received. A throttle position is received. A second pressure at a convergent end of a convergent nozzle positioned downstream of the throttle is received. An air flow is estimated based on the received first pressure, the received temperature, the received throttle position, and the received second pressure, wherein estimating the air flow includes determining one or more models to use for calculating air flow based on the throttle position, the models including a throttle flow model, a convergent nozzle flow model, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.