Firing fraction transition control
US10138860B2 · kind B2 · utility
14Cited by
63References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Sep 7, 2037 |
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 effective firing fractions during dynamic firing level modulation 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 effective firing fractions during transitions such that the resulting changes in the effective firing fraction better track cylinder air charge changing dynamics associated with the transition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.