Fuel delivery control based on estimated fuel temperature
US5902346A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1996 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jun 7, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0608
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In one embodiment of the present invention, a method for estimating temperature of fuel in a fuel delivery system of a motor vehicle engine includes the step of calculating a fuel temperature estimate in an engine running state as a function of fuel flow rate, engine coolant temperature and intake air temperature. In a second embodiment of the present invention, a method for estimating temperature of fuel in a fuel delivery system of a motor vehicle engine includes the step of calculating a fuel temperature estimate in an engine not running state as a function of a fuel temperature estimate when the engine was last in a running state, time the engine has been in the not running state, engine coolant temperature and intake air temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.