Fuel injection control system for an automotive engine
US4928654A · kind A · utility
19Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1988 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The quantity of air inducted in a cylinder of an engine is estimated by using equations based on various coefficients. The coefficients are stored in a memory and derived in accordance with engine operating conditions. A basic injection pulse width is calculated by the estimated inducted air quantity and speed of the engine. The basic injection pulse width is corrected by a feedback coefficient, thereby producing a fuel injection pulse width signal for operating a fuel injector of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.