Fuel control system for automobile engine
US5909726A · kind A · utility
4Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/0042
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel control system for feedback controlling a purge gas flow rate as well as an air-to-fuel ratio which learns the concentration of fuel of a purge gas based on an average of air-to-fuel ratio control values at adjacent reversal there of between an upward tendency and a downward tendency and determines the content of fuel of the purge gas based on the purge gas concentration by which the amount of fuel delivered by an injector is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.