Air-fuel ratio control for transient modes of internal combustion engine operation
US4712529A · kind A · utility
17Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1987 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Jan 8, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The outputs generated by the throttle position sensor and the pressure responsive type air flow sensor (or alternatively a flap type air flow meter or the like) are used to generate correction factors which when combined permit the correction of the air flow sensor output for a short period following the initiation of a demand for engine acceleration to obviate the discrepency between the actual and indicated air flows and thus improve the real-time control of the air-fuel ratio (A/F) of the mixture and the level of emission control and performance of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.