Fuel injection system for internal combustion engine and control method for internal combustion engine
US9765722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system for an engine, the fuel injection system includes injectors and an electronic control unit. The injectors include needle valves; and the ECU is configured to: (i) execute partial lift injection and full lift injection with the injectors, the partial lift injection being injection during which the needle valve does not reach a fully-open state and the full lift injection being injection during which the needle valve reaches the fully-open state; (ii) operate the engine in a partial lift injection region where the injection of a required injection amount of a fuel is shared by the partial lift injection and the full lift injection; and (iii) perform the amount of correction of the required injection amount with respect to the injection amount shared by the full lift injection when the required injection amount is corrected while the engine is operated in the partial lift injection region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.