System for controlling the operation of an internal combustion engine
US4807581A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 13, 1986 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Nov 13, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/187
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling the operation of an internal combustion engine on the basis of air/fuel ratios and engine loads. A flow rate of intake air sucked into the engine and the cycle of engine revolutions are detected to determine an average flow rate of intake air, which is then used in cooperation with a compression ratio and an engine displacement to determine a net flow rate of intake air or the charging efficiency of the engine. This parameter represents a precise engine load and is used to regulate fuel injected into the engine. As a result, engine operations may be optimally controlled even during transitional operating states of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.