VEHICLE SOIL PRESSURE MANAGEMENT BASED ON TOPOGRAPHY

• US 20130046439A1
• Filed: 08/17/2011
• Published: 02/21/2013
• Est. Priority Date: 08/17/2011
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Anderson, Noel Wayne, Hendrickson, Larry Lee
• Granted Patent: US 8,843,269 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60C 23/002 by monitoring conditions other than tyre pressure or deformation
• CPC Class Codes: B60T 2210/36 Global Positioning System [GPS]

Abstract

Systems and techniques are provided for managing an interface between a machine or work vehicle and a surface that the machine/work vehicle travels on in order to provide an optimum work performance level that balances fuel efficiency and surface adversity. Fleet management and reporting capabilities pertaining to such interface management are also provided.

Claims

1. A method for managing pressure of a vehicle against a surface, comprising steps of:

sensing a vehicle location of the vehicle;

determining a landscape position based on the vehicle location; and

adjusting the pressure of the vehicle against the surface based on the landscape position.

2. The method of claim 1, wherein the vehicle location is sensed using a geographic positioning satellite (GPS) system.

3. The method of claim 1, wherein the landscape position is determined using topographical information pertaining to a work area of the vehicle.

4. The method of claim 1, wherein the topographical information is stored in a geographic information system (GIS) database that comprises representative types of surface characteristics including soil density, moisture content and slope.

5. The method of claim 1, further comprising:

determining a vehicle mass of the vehicle, and wherein the pressure of the vehicle against the surface is adjusted based on both the landscape position and the vehicle mass of the vehicle.

6. The method of claim 5, wherein determining the vehicle mass of the vehicle comprises using at least one of a fixed value, using a sensed value, adding the sensed value to the fixed value, using a value received wirelessly from an off-board location, and a calculated value from a volume measurement to determine the vehicle mass of the vehicle.

7. The method of claim 1, wherein the vehicle location serves as an index into a landscape position zone for a work area of the vehicle.

8. The method of claim 1, wherein adjusting the pressure of the vehicle against the surface comprises at least one of changing a tire pressure, changing a shape of a ground contacting element, and changing a number of ground contacting elements contacting the surface.

9. The method of claim 1, wherein adjusting the pressure of the vehicle against the surface comprises changing a shape of a ground contacting element that comprises at least one of magneto-rheological and electro-rheological materials.

10. The method of claim 1, wherein the surface is one of ground, soil, snow, ice and a floor.

11. A surface pressure management system comprising a data processor coupled to a memory comprising instructions for performing steps of:

sensing a vehicle location of a vehicle;

determining a landscape position based on the vehicle location; and

adjusting pressure of the vehicle against a surface based on the landscape position.

12. The surface pressure management system of claim 11, wherein the vehicle location is sensed using a geographic positioning satellite (GPS) system.

13. The surface pressure management system of claim 11, wherein the landscape position is determined using topographical information pertaining to a work area of the vehicle.

14. The surface pressure management system of claim 11, wherein the topographical information is stored in a geographic information system (GIS) database that comprises representative types of surface characteristics including soil density, moisture content and slope.

15. The surface pressure management system of claim 11, further comprising:

determining a vehicle mass of the vehicle, and wherein the pressure of the vehicle against the surface is adjusted based on both the landscape position and the vehicle mass of the vehicle.

16. The surface pressure management system of claim 15, wherein determining the vehicle mass of the vehicle comprises using at least one of a fixed value, using a sensed value, adding the sensed value to the fixed value, using a value received wirelessly from an off-board location, and a calculated value from a volume measurement to determine the vehicle mass of the vehicle.

17. The surface pressure management system of claim 11, wherein the vehicle location serves as an index into a landscape position zone for a work area of the vehicle.

18. The surface pressure management system of claim 11, wherein adjusting the pressure of the vehicle against the surface comprises at least one of changing a tire pressure, change a shape of a ground contacting element, and changing a number of ground contacting elements contacting the surface.

19. The surface pressure management system of claim 11, wherein adjusting the pressure of the vehicle against the surface comprises changing a shape of a ground contacting element that comprises at least one of magneto-rheological and electro-rheological materials.

20. The surface pressure management system of claim 11, wherein the surface is one of ground, soil, snow, ice and a floor.