Method for operating an engine with a hybrid valvetrain
US6470853B1 · kind B1 · utility
39Cited by
7References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Aug 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and system for controlling intake valves in an internal combustion with intake valves operated by more than one type of actuation device includes defining operating modes of the intake valve and mapping these onto engine torque and engine speed operating regions. Torque control within regions and steps to accomplish smooth transitions among regions are defined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.