Transition fuel multiplier
US5003944A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | May 14, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/105
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention is a method of firing fuel injectors for an engine of an automotive vehicle. The method includes the steps of determining whether injection timing for firing fuel injectors has changed from one predetermined state to another predetermined state of a distributor reference signal, firing the injectors for a predetermined time period and delivering a calculated amount of fuel for the one predetermined state if the injection timing has not changed. The method also includes determining whether a need for transition fuel has ended if the injection timing has changed and firing the fuel injectors for another predetermined time period and delivering a calculated amount of transition fuel at another predetermined state if the need for transition fuel has not ended. The method further includes firing the fuel injectors for another predetermined time period and delivering a calculated amount of fuel for the another predetermined state either after completion of the firing of transition fuel or if the need for transition fuel has ended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.