Learning control system of air-fuel ratio in electronic control engine
US4571683A · kind A · utility
61Cited by
14References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1982 |
| Grant date | Feb 18, 1986 |
| Priority date | — |
| Expiry date | Jul 29, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/248
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This system computes final fuel injection amount TAU on the basis of the following formula; EQU TAU=A.times.TP+B+J where PA1 A : a first learning term PA1 B : a second learning term PA1 TP : basic fuel injection amount PA1 J : correction amount Learning control is effected by correcting the second learning term B during idling periods and by correcting the first learning term A when an engine has larger than a predetermined load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.