System and method for computing asynchronous interrupted fuel injection quantity for automobile engines
US5068794A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Apr 24, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/107
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection control system for an automotive engine, including a device which, before an intake stroke cycle, estimates what an estimated throttle opening degree and an estimated engine speed will be for the engine after a predetermined time period in the intake stroke cycle has lapsed, based on the throttle opening degree and engine speed and calculates a first fuel injection quantity to be injected before an intake stroke cycle, and a device which, during the intake stroke cycle, calculates a second fuel injection quantity and computes an asynchronous interrupted fuel injection quantity to be injected during the intake stroke cycle, based on the difference between the first and second fuel injection quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.