System and method for estimating volumetric efficiency for engines with intake and exhaust cam phasers
US7472013B1 · kind B1 · utility
6Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2007 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control module comprises a table that outputs a parked VE estimate based on an input parameter when intake and exhaust cam phasers of an engine are in a parked position. A calculation module calculates VE estimate when the intake and exhaust cam phasers are not in a parked position based on the parked VE estimate and a mathematical relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.