Method and system for fuel injector balancing
US10989132B2 · kind B2 · utility
7Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jul 18, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for injector correction learned while a direct injector delivers fuel as a group of fuel injections per cylinder event. The correction is learned using a pressure based injector balancing approach while relies on a sensed pressure drop across the group of fuel injections. Errors for individual pulses of the group of injections is learned as a function of inter-injection spacing and individual pulse-width commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.