Air dynamic steady state and transient detection method for cam phaser movement
US7464676B2 · kind B2 · utility
24Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air dynamic steady state detection system for movement of a cam phaser of an internal combustion engine includes a cam position sensing device and a control module. The cam position sensing device generates a position signal based on a position of the cam phaser of the engine. The control module receives the position signal and applies first and second filters to the position signal to select either a transient or steady state condition. The control module also calculates an estimated air value based on the selection of the transient or steady state condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.