Intake-air quantity control apparatus for internal combustion engine with variable valve timing system
US6390063B1 · kind B1 · utility
57Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an intake-air quantity control apparatus for an internal combustion engine with a variable valve timing system, an electronic engine control module has a microprocessor programmed to perform selecting one of a first control mode in which an intake-air quantity of the engine is controlled by adjusting the throttle opening, and a second control mode in which an intake-air quantity of the engine is controlled by adjusting the intake-valve closure timing. The microprocessor is programmed to perform a number of calculating and setting steps regarding the intake-air quantity and in-take valve closure timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.