Fuel injection control system for an automotive engine
US4967715A · kind A · utility
12Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Nov 24, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0402
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A throttle opening degree of a throttle valve at a time when the throttle opening degree is used for determining quantity of fuel injected from an injector is estimated in accordance with coefficients and engine speed. The quantity of air induced in a cylinder of an engine is estimated by using the estimated throttle opening degree and equations based on various coefficients. A basic injection pulse width is calculated based on the estimated air quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.