System for controlling engine fueling according to vehicle location

• US 5,983,156 A
• Filed: 09/03/1997
• Issued: 11/09/1999
• Est. Priority Date: 09/03/1997
• Status: Expired due to Term

• Current Assignee: Cummins Engine IP Inc (Cummins Incorporated)
• Original Assignee: Cummins Incorporated
• Inventors: Andrews, Eric B.
• Primary Examiner(s): WOLFE JR, WILLIS RAY
• Application Number:
  US08/922,961
• Time in Patent Office: 797 Days
• Field of Search: 123/436, 123/486, 180/167, 180/168, 180/169, 701/1, 701/2, 701/25, 701/103, 701/104, 701/105, 701/115, 701/207, 701/213, 701/215, 701/218, 701/219, 340/438, 340/439, 340/459, 340/825.3, 340/825.31, 340/425.5, 307/9.1, 307/10.1, 307/10.4, 307/10.5
• US Class Current: 701/115
• 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 41/0007 for control of turbo-charged or super-charged engines control of the pumps per se F02B37/12
• 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 41/2422 Selective use of one or more tables
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A system for controlling fueling of an internal combustion engine includes a receiver associated with the vehicle, such as a GPS, GLONASS or LORAN-C receiver, operable to receive radio signals relating to vehicle location, a fueling system responsive to fueling signals to provide fuel to the engine and a control computer with a memory having a number of different engine fueling maps stored therein. The control computer is responsive to the radio signals to determine therefrom a geographical position of the vehicle, retrieve an appropriate one of the number of engine fueling maps from memory which corresponds to the geographical location of the vehicle, and provide the fueling signals according to the appropriate one of the number of engine fueling maps. In an alternative embodiment, the system includes a communications transceiver operable to transmit either the radio signals or the geographical location of the vehicle to a remote computer system, wherein the remote computer system is operable to determine an appropriate engine fueling map, based on the geographical location of the vehicle, and transmit the engine fueling map information back to the control computer for fueling the engine in accordance therewith. In either embodiment, engine fueling maps corresponding to at least a low emissions fueling mode, a fuel economic fueling mode and a high engine output fueling mode are provided for fueling the engine when the vehicle is located in an urban, rural and hilly geographical location respectively.

Claims

1. A system for controlling fueling of an internal combustion engine of a vehicle according to vehicle location, comprising:

a receiver associated with a vehicle for receiving radio signals relating to vehicle location;

a fueling system responsive to a fueling signal to provide fuel to an internal combustion engine of said vehicle;

means responsive to said radio signals relating to vehicle location for determining a geographical location of said vehicle;

means responsive to said geographical location of said vehicle for determining an engine fueling map corresponding to said geographical location of said vehicle; and

a control computer providing said fueling signal to said fueling system according to said engine fueling map.

2. The system of claim 1 further including a memory unit having a number of different engine fueling maps stored therein;

and wherein said means for determining an engine fueling map is responsive to said geographical location of said vehicle to retrieve from said memory unit an appropriate one of said number of different engine fueling maps corresponding to said geographical location of said vehicle.

3. The system of claim 2 wherein said number of different engine fueling maps includes a low emissions engine fueling map for fueling said engine in a low exhaust emissions mode of operation.

4. The system of claim 3 wherein said low emissions engine fueling map corresponds to an urban geographical area.

5. The system of claim 2 wherein said number of different engine fueling maps includes a fuel economic engine fueling map for fueling said engine in a fuel economic mode of operation.

6. The system of claim 5 wherein said fuel economic engine fueling map corresponds to a rural geographical area.

7. The system of claim 2 wherein said number of different engine fueling maps includes a high output engine fueling map for fueling said engine in one of a high engine output power and a high engine output torque mode of operation.

8. The system of claim 7 wherein said high output engine fueling map corresponds to a geographical area having inclined road grades.

9. The system of claim 1 wherein said control computer includes said means responsive to said radio signals relating to vehicle location for determining a geographical location of said vehicle.

10. The system of claim 9 wherein said control computer includes said means responsive to said geographical location of said vehicle for determining an engine fueling map corresponding to said geographical location of said vehicle.

11. The system of claim 9 further including:

a first communications transceiver associated wish said vehicle, said first communications transceiver responsive to first control signals provided thereto by said control computer to transmit a first number of communication signals corresponding to said geographical location of said vehicle;

a second communications transceiver located remote from said vehicle and operable to receive said first number of communication signals; and

a base station computer connected to said second communications transceiver and operable to determine said geographical location of said vehicle from said first number of communication signals, said base station computer including said means responsive to said geographical location of said vehicle for determining an engine fueling map corresponding to said geographical location of said vehicle;

wherein said second transceiver is responsive to second control signals provided thereto by said base station computer to transmit a second number of communication signals corresponding to said engine fueling map;

and wherein said first communications transceiver is operable to receive said second number of communication signals, and said control computer is operable to determine said engine fueling map from said second number of communication signals.

12. The system of claim 11 wherein each of said first and second communication transceivers are one of a cellular telephone transceiver, an RF radio signal transceiver and a satellite communications transceiver.

13. The system of claim 1 further including:

a first communications transceiver associated with said vehicle, said first communications transceiver responsive to first control signals provided thereto by said control computer to transmit a first number of communication signals corresponding to said radio signals relating to vehicle location;

a second communications transceiver located remote from said vehicle and operable to receive said first number of communication signals; and

a base station computer connected to said second communications transceiver and operable to determine said radio signals relating to vehicle location from said first number of communication signals, said base station computer including said means responsive to said radio signals relating to vehicle location for determining a geographical location of said vehicle and said means responsive to said geographical location of said vehicle for determining an engine fueling map corresponding to said geographical location of said vehicle;

wherein said second transceiver is responsive to second control signals provided thereto by said base station computer to transmit a second number of communication signals corresponding to said engine fueling map;

and wherein said first communications transceiver is operable to receive said second number of communication signals, and said control computer is operable to determine said engine fueling map from said second number of communication signals.

14. The system of claim 13 wherein each of said first and second communication transceivers are one of a cellular telephone transceiver, an RF radio signal transceiver and a satellite communications transceiver.

15. The system of claim 1 wherein said receiver is one of a GPS, GLONASS and LORAN-C receiver operable to receive one of GPS, GLONASS and LORAN-C radio signals respectively.

16. A system for controlling fueling of an internal combustion engine of a vehicle according to vehicle location, comprising:

a receiver associated with a vehicle for receiving radio signals relating to vehicle location;

a fueling system responsive to a fueling signal to provide fuel to an internal combustion engine of said vehicle;

a memory unit having a number of different engine fueling maps stored therein; and

a control computer connected to said receiver, said fueling system and said memory unit, said control computer responsive to said radio signals relating to vehicle location to determine therefrom a geographical location of said vehicle, retrieve from said memory unit an appropriate one of said engine fueling maps corresponding to said geographical location of said vehicle, and provide said fueling signal to said fueling system according to said appropriate one of said number of engine fueling maps.

17. The system of claim 16 wherein said number of different engine fueling maps includes a low emissions engine fueling map for fueling said engine in a low exhaust emissions mode of operation;

and wherein said low emissions engine fueling map corresponds to an urban geographical area.

18. The system of claim 16 wherein said number of different engine fueling maps includes a fuel economic engine fueling map for fueling said engine in a fuel economic mode of operation;

and wherein said fuel economic engine fueling map corresponds to a rural geographical area.

19. The system of claim 16 wherein said number of different engine fueling maps includes a high output engine fueling map for fueling said engine in one of a high engine output power and a high engine output torque mode of operation;

and wherein said high output engine fueling map corresponds to a geographical area having inclined road grades.

20. The system of claim 16 wherein said receiver is one of a GPS, GLONASS and LORAN-C receiver operable to receive one of GPS, GLONASS and LORAN-C radio signals respectively.

21. A method of controlling fueling of an internal combustion engine according to vehicle location, comprising the steps of:

determining a geographical location of a vehicle having an internal combustion engine;

determining an appropriate engine fueling map corresponding to the geographical location of the vehicle; and

fueling the engine according to the appropriate engine fueling map.

22. The method of claim 21 wherein said step of determining a geographical location of a vehicle having an internal combustion engine includes the steps of:

receiving radio signals relating to vehicle location; and

processing the radio signals to determine therefrom the geographical location of the vehicle.

23. The method of claim 22 wherein the radio signals are one of GPS, GLONASS and LORAN-C radio signals.

24. The method of claim 21 wherein the step of determining an appropriate engine fueling map corresponding to the geographical location of the vehicle includes the steps of:

determining an appropriate one of a number of engine fueling modes corresponding to the geographical location; and

retrieving from a memory unit an engine fueling map corresponding to the appropriate one of a number of engine fueling modes.

25. The method of claim 24 wherein the appropriate one of a number of different engine fueling modes is a low emissions engine fueling mode for fueling said engine in a low exhaust emissions mode of operation.

26. The system of claim 25 wherein the corresponding geographical location is an urban geographical area.

27. The method of claim 24 wherein the appropriate one of a number of different engine fueling modes is a fuel economic engine fueling mode for fueling said engine in a fuel economic mode of operation.

28. The system of claim 27 wherein the corresponding geographical location is a rural geographical area.

29. The method of claim 24 wherein the appropriate one of a number of different engine fueling modes is one of a high engine output power and a high engine output torque fueling mode for fueling the engine in one of a high engine output power and a high engine output torque mode of operation respectively.

30. The system of claim 29 wherein the corresponding geographical location is a geographical area having inclined road grades.