Flow estimation for secondary air system
US11698014B1 · kind B1 · utility
1Cited by
11References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 20, 2022 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems using model based and iterative calculations of mass flow throughout an internal combustion engine system. A secondary air injection valve is provided to selectively allow intake air to pass to the exhaust side of the engine system to aid in exothermic reaction with exhaust gasses exiting the engine for various purposes. The iterative calculations of mass flow include estimation of the mass flow through the secondary air injection valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.