Method and device for optimizing air filling in an internal combustion engine cylinder
US5690065A · kind A · utility
14Cited by
10References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1996 |
| Grant date | Nov 25, 1997 |
| Priority date | — |
| Expiry date | May 10, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A value (RFD.sub.tab) of a lag in the closure of an intake valve (2) associated with the cylinder (4.sub.1), as a function of the engine speed (N), is obtained from a table, and the closure of this valve (2) is controlled as a function of this lag. During operation at a stabilized speed under a heavy load, the applied closure lag is gradually varied from the stored value in steps (.epsilon.), the load of the cylinder is measured and compared before and after each successive step, and the stored value (RFA.sub.tab) of the lag is updated when a comparison reveals an increase in said load, until a maximum for the latter is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.