System and method for controlling busyness of cylinder mode changes
US10337431B2 · kind B2 · utility
4Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | May 27, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0616
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for operating an engine with deactivating and non-deactivating valves are presented. In one example, mode changes between deactivating cylinders is based on an amount of time a valve is deactivated, and the longer the valve is deactivated the sooner cylinder valves may be deactivated. If the amount of time the valve is deactivated is short, the time that valves may be deactivated may be delayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.