Method of calculating a valve timing command for an engine
US6557540B1 · kind B1 · utility
3Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L9/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method to calculate valve timing commands for an engine with variable valve timing is hereby disclosed. The method includes determining a valve feedforward term based on an engine performance command and an environmental conditions signal, calculating a valve feedback term based on the engine performance command and an engine performance feedback, and calculating a valve timing command based on the valve feedforward term and the valve feedback term.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.