Apparatus and method of valve timing control for internal combustion engine
US6574544B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Nov 9, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/143
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a valve timing control apparatus for an internal combustion engine to control a rotation phase of a camshaft relative to a crankshaft so that opening and closing timing of intake and exhaust valves is variably controlled, a feedback correction amount of the rotation phase is calculated by a sliding mode control using a switching function obtained by adding a deviation between a target value and an actual value to a differential value of the deviation, to thereby feedback control using the feedback correction amount. According to this constitution, a control can be executed with high robust and with low influence due to disturbances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.