Skip fire transition control
US9777658B2 · kind B2 · utility
35Cited by
59References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | May 6, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire operation of an engine in order to help reduce undesirable NVH consequences and otherwise smooth the transitions. In general, both feed forward and feedback control are utilized in the determination of the firing fractions during transitions such that the resulting changes in the firing fraction better track cylinder air charge changing dynamics associated with the transition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.