Method of correcting engine maps based on engine temperature
US5586538A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/389
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In one aspect of the present invention, a method for correcting an engine map for use in an electronic control system that regulates the quantity of fuel that a hydraulically-actuated injector dispenses into an engine. The engine map stores a plurality of engine operating curves. The method modifies at least one of the engine operating curves in response to the engine temperature, which is indicative of the temperature of the actuating fluid used to hydraulically actuate the injector. Consequently, the engine map curves are corrected to compensate for changing engine temperatures to insure that the hydraulically-actuated fuel injectors dispense a desired quantity of fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.