Fuel control system for an internal combustion engine
US4329960A · kind A · utility
11Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1980 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Feb 27, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An i.c. engine fuel control system includes a closed loop roughness control, utilizing a roughness sensor circuit, an integrator which integrates the error between the roughness signal and a reference signal and modifies the fuel flow to the engine via a main fuel control with a variable frequency clock. During acceleration and deceleration the closed loop is interrupted by means of a circuit including two differentiators which are sensitive to throttle opening (speed demand) and actual speed respectively, and switches controlled by these differentiators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.