Method for controlling an engine utilizing vehicle position

• US 20030024508A1
• Filed: 07/31/2001
• Published: 02/06/2003
• Est. Priority Date: 07/31/2001
• Status: Active Grant

• Current Assignee: Ford Motor Company
• Original Assignee: Ford Motor Company
• Inventors: Garrett, James, Davison, Lynn Edward, Hellar, Greg, Buckert, John, Reitz, Kay Margaret
• Granted Patent: US 6,575,144 B2
• Time in Patent Office: Days
• US Class Current: 123/491
• CPC Class Codes: F02D 2200/701 Information about vehicle position, e.g. from navigation system or GPS signal
• CPC Class Codes: F02D 2200/703 Atmospheric pressure
• CPC Class Codes: F02D 41/021 Introducing corrections for particular conditions exterior to the engine conjoint control of vehicle sub-units for propelling the vehicle B60W30/18
• CPC Class Codes: F02D 41/064 at cold start F02D41/067 takes precedence

Abstract

A method is provided for controlling an internal combustion engine in a vehicle. The method includes adjusting a fuel injection amount during engine crank based on a barometric pressure. The barometric pressure is determined from at least one signal received from at least one transmitter external from the vehicle.

Claims

1. A method for controlling an internal combustion engine of a vehicle, comprising:

adjusting a fuel injection amount during engine crank based on a barometric pressure, and said barometric pressure determined from at least one signal received from at least one transmitter external from said vehicle.

2. The method of claim 1 wherein said at least one signal is indicative of longitudinal and latitudinal position of said vehicle, or an altitude of said vehicle.

3. The method of claim 1 wherein said at least one transmitter is a global positioning system.

4. The method of claim 3 wherein said step of adjusting said fuel injection amount includes:

determining an altitude of said vehicle based on said at least one signal received from said global positioning system; and

,

determining said barometric pressure based on said altitude.

5. The method of claim 3 wherein said step of adjusting said fuel injection amount includes:

determining a position of said vehicle based on said at least one signal received from said global positioning system;

determining an altitude of said vehicle based on said position and stored elevational information corresponding to said position; and

,

determining said barometric pressure based on said altitude.

6. The method of claim 3 wherein said step of adjusting said fuel injection amount includes:

determining a position of said vehicle based on said at least one signal received from said global positioning system; and

,

determining said barometric pressure based on said position and stored barometric pressure information corresponding to said position.

7. The method of claim 1 wherein said step of adjusting said fuel injection amount includes:

determining a cylinder air charge amount responsive to said barometric pressure; and

,

determining a desired fuel injection amount based on said cylinder air charge amount.

8. The method of claim 1 wherein said barometric pressure is ambient air pressure communicating with said vehicle.

9. The method of claim 1 wherein said at least one signal is indicative of barometric pressure and said external transmitter is a communication station transmitter or a satellite transmitter.

10. A method for controlling an internal combustion engine of a vehicle, comprising:

determining a barometric pressure communicating with said vehicle based on at least one signal received from a global positioning system; and

,

adjusting a fuel injection amount in said engine during engine crank responsive to said barometric pressure.

11. The method of claim 10 wherein said at least one signal is indicative of an altitude of said vehicle.

12. The method of claim 10 wherein said at least one signal is indicative of a longitudinal position and a latitudinal position of said vehicle.

13. A method for controlling an internal combustion engine of a vehicle, comprising:

determining a barometric pressure communicating with said vehicle based on at least one signal indicative of said barometric pressure received from a communication station or a satellite; and

,

adjusting a fuel injection amount during engine crank responsive to said barometric pressure.

14. The method of claim 13 wherein said step of determining said barometric pressure includes:

transmitting a first signal indicative of a position of said vehicle to a communication station or a satellite;

determining said barometric pressure utilizing said position and stored barometric pressure information corresponding to said position; and

,

transmitting a second signal indicative of said barometric pressure to a receiver in said vehicle from said communication station or said satellite.

15. A method for controlling an internal combustion engine, comprising:

adjusting a fuel injection amount in a port fuel injection engine based on a barometric pressure, and said barometric pressure determined from at least one signal received from at least one transmitter external from said vehicle.

16. A control system for an internal combustion engine, comprising:

a receiver receiving at least one signal from at least one transmitter external from said vehicle, said signal being indicative of barometric pressure; and

,

a controller operably connected to said receiver, said controller adjusting a fuel injection amount in said engine during engine crank responsive to said barometric pressure.

17. The control system of claim 16 wherein said at least one transmitter is a global positioning system.

18. The control system of claim 16 wherein said at least one transmitter is a communication station transmitter or a satellite transmitter.

19. The control system of claim 16 wherein said at least one signal is indicative of an altitude of said vehicle.

20. The control system of claim 16 wherein said at least one signal is indicative of a longitudinal position and a latitudinal position of said vehicle.

21. The control system of claim 16 wherein said at least one signal is a barometric pressure signal.

22. An article of manufacture comprising:

a computer storage medium having a computer program encoded therein for controlling an internal combustion engine, said computer storage medium comprising;

code for determining a barometric pressure based on at least one signal received from at least one transmitter external from said vehicle; and

,

code for adjusting a fuel injection amount in said engine during engine crank responsive to said barometric pressure.