Engine mass air flow calculation method and system
US9689335B2 · kind B2 · utility
20Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Aug 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for determining an engine mass air flow (MAF) for use in an engine air to fuel ratio (AFR) calculation to operate an engine includes monitoring engine operation, determining in the electronic controller a first estimation of engine MAF based on a regression model, determining in the electronic controller a second estimation of engine MAF based on a flow model, and selecting the first or second estimation of engine MAF based on an operating state of the engine. Each estimation can use various engine parameters interchangeably to provide a robust system against sensor failures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.