Fuel injection control device for an internal combustion engine with throttle opening detection means
US4785785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Dec 4, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/2441
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection control device for an internal combustion engine comprising a throttle position sensor, a pressure sensor or a potentiometer for detecting a flow of the intake air in units of a certain physical quantity, and a third detecting device for detecting whether the engine is operating in a steady state. The device further includes a device for estimating the load of the engine from the output of the throttle position sensor and a learning device for correcting the estimation provided by the estimating device based on the output of the air flow sensor when the engine is operating in a steady state, so that the load estimation value can be corrected in accordance with the actual air flow. The amount of fuel to be injected is calculated in response to the most recently corrected load estimation value obtained from the output of the throttle position sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.