Method for remote engine start
US6853895B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/024
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for remote start of a vehicle engine is disclosed. Immediately upon engine start the volatility characteristics of the fuel are determined and this information used to adjust the quantity of fuel injected into the cylinders of the engine during open-loop fuel injection control. Passenger compartment electrical loads are turned off until the catalytic exhaust system is heated to permit closed-loop fuel control. Thereafter, pending operator intervention, the fan, A/C, defroster, and the like, are sequentially turned on and operated for a limited time to prepare the passenger compartment for the absent driver. The method results in minimum emissions, and reduces fuel consumption during extended idle operation while maintaining smooth engine start operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.