Fuel injection control for internal combustion engine
US6578551B2 · kind B2 · utility
7Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2002 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Aug 14, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/105
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The startup time of an engine is shortened by performing initial fuel injection after the start of cranking on a cylinder undergoing an intake stroke and a cylinder undergoing an exhaust stroke. After the initial fuel injection, HC emissions are suppressed by performing fuel injection in cylinders undergoing an exhaust stroke. Furthermore when it is determined that initial combustion has not occurred after the initial fuel injection, an additional injection is performed on the cylinder undergoing an intake stroke. In this manner, it is possible to minimize increases in the startup time and adverse effects on exhaust emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.