Fuel injected engine control device and method performing wall-adhered fuel accounting
US4388906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1982 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | May 5, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/047
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling an internal combustion engine with a fuel injection valve fitted to its intake manifold. Repeatedly a first quantity representing the desired amount of fuel to be supplied to the combustion chambers in the next fuel injection pulse, a second quantity representing the proportion of fuel in one pulse which will adhere to the walls of the intake system, and a third quantity representing the proportion of fuel adhering to these walls which will be sucked off into the combustion chambers between two successive pulses are determined, based upon sensed values of certain operational parameters. Simultaneously, at proper injection time points in the engine's operational cycle, first from the third quantity and a fourth quantity representing the total fuel amount adhering to the walls a fifth quantity representing the actual fuel amount sucked off from the walls between two successive pulses is determined; then from the first, second, and fifth quantities a sixth quantity representing the actual fuel amount to be injected in the next pulse is determined; then from the sixth and second quantities a seventh quantity representing the actual amount of fuel from the next …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.