Apparatus and method for controlling variable valve actuation mechanism
US7188594B2 · kind B2 · utility
1Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2006 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an internal combustion engine equipped with a variable valve actuation mechanism, which varies a lift amount of an intake valve, when the lift amount is forcedly controlled at the minimum to learn a detection result of the lift amount at that time, a throttle opening, an ignition timing, and a fuel injection amount are corrected such that an engine torque is not largely decreased in association with a decrease in lift amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.