Air fuel mixture control system and method
US4350130A · kind A · utility
5Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1980 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Aug 27, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1456
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This specification discloses an apparatus and method for controlling the air fuel ratio in an internal combustion engine in response to a signal from an exhaust gas oxygen sensor. A signal proportional to the average air fuel ratio indicated by exhaust gases is integrated to produce a control signal which governs the air fuel ratio. A feedback loop around the integrator provides for an advantageously fast time response of the controller with no over-shoot or instability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.