Electronic fuel injection control for an internal combustion engine
US4191137A · kind A · utility
10Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1979 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Feb 7, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic fuel injection control includes a main control circuit which controls fuel flow to the engine by controlling the duration of pulses applied to fuel valves. In addition there is a transient fuel varying control including a differentiating circuit which differentiates the signal from a throttle position transducer. This differentiator controls a variable frequency clock which forms part of the main fuel control so that the pulse duration is lengthened or shortened for a given value of the engine parameter which controls the main fuel control according to the rate of increase or decrease of the throttle position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.