System and method for controlling valve timing of continuous variable valve duration engine
US9863331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; retarding an intake valve closing (IVC) timing and limiting a valve overlap between an intake valve and an exhaust valve in a first control region; advancing the IVC timing and applying a maximum duration to the exhaust valve in a second control region; advancing the IVC timing according to an increase of the engine load in a third control region; controlling a throttle valve to be fully opened and advancing the IVC timing in a fourth control region; and controlling the throttle valve to be fully opened and retarding the IVC timing in a fifth control region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.