IP Library › Granted Patent US 11,713,073
Granted Patent B2
US 11,713,073 · App. 17/087,465 · Granted Aug 1, 2023

Paving machine with smart steering control

Inventors: Thomas C. Farr (Ellendale, MN); Raymond J. Bumann, III (Ida Grove, IA); Chad M. Schaeding (Ida Grove, IA)
Assignee: Gomaco Corporation
B62D11/003B62D11/20B62D55/065E01C19/004E01C19/4893
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Quick Facts
Patent No.
US 11,713,073
App. No.
17/087,465
Granted
Aug 1, 2023
Kind
B2
Abstract

A smart steering control system a paving or texturing machine receives path elements corresponding to current and future positions of the machine. By comparing the current and future elements, an expected completion time is derived for exiting the current position and entering the future position; the smart steering control system synchronizes adjustments of the machine's steerable tracks from the current path to the future path. The smart steering control system functions as a virtual tie rod, preventing damage, enhancing the traction control and pulling power of the machine, and preserving the operating life of its components.

Claims (83)

1. A computer apparatus comprising:

at least one processor in data communication with a tangible memory storing non-transitory processor executable code for configuring the at least one processor to:

determine a common rotation point associated with a first radius in a paving path;

determine a first angle associated with a first track of a tool carrier, the first angle defined by a distance of the first track from the common rotation point;

steer the first track to the first angle;

determine a second angle associated with a second track of the tool carrier, the second angle defined by a distance of the second track from the common rotation point;

steer the second track to the second angle;

determine a second common rotation point associated with a second radius portion, different from and contiguous with the first radius portion;

determine a third angle associated with the first track defined by a distance of the first track from the second common rotation point; and

determine a fourth angle associated with the second track defined by a distance of the second track from the second common rotation point,

wherein both the first radius and second radius comprises a portion of a path of the tool carrier.

2. The apparatus of claim 1 , wherein the processor executable code further configures the at least one processor to:

determine a fifth angle associated with a third track of the tool carrier, the fifth angle defined by a distance of the third track from the common rotation point; and

steer the third track to the fifth angle.

3. The apparatus of claim 2 , wherein the processor executable code further configures the at least one processor to:

determine a sixth angle associated with the first track defined by a straight portion of the paving path;

determine a seventh angle associated with the second track defined by the straight portion of the paving path; and

determine a eight angle associated with the third track defined by the straight portion of the paving path.

4. The apparatus of claim 3 , wherein the processor executable code further configures the at least one processor to:

transition the first track from the first angle to the sixth angle;

transition the second track from the second angle to the seventh angle; and

transition the third track from the third angle to the eight angle.

5. The apparatus of claim 2 , wherein the processor executable code further configures the at least one processor to:

determine a sixth angle associated with the third track defined by a distance of the third track from the second common rotation point.

6. The apparatus of claim 5 , wherein the processor executable code further configures the at least one processor to:

transition the third track from the third angle to the sixth angle.

7. The apparatus of claim 2 , wherein the processor executable code further configures the at least one processor to:

determine a first track function for smoothly altering the angle of the first track from the first angle to carry a tool through a variable radius curve;

determine a second track function for smoothly altering the angle of the second track from the first angle to carry a tool through the variable radius curve; and

determine a third track function for smoothly altering the angle of the third track from the first angle to carry a tool through the variable radius curve.

8. A method for paving comprising:

determining a common rotation point associated with a first radius in a paving path;

determining a first angle associated with a first track of a tool carrier, the first angle defined by a distance of the first track from the common rotation point;

determining a second angle associated with a second track of the tool carrier, the second angle defined by a distance of the second track from the common rotation point;

steering the first track to the first angle;

steering the second track to the second angle;

determining a second common rotation point associated with a second radius portion, different from and contiguous with the first radius portion;

determining a third angle associated with the first track defined by a distance of the first track from the second common rotation point; and

determining a fourth angle associated with the second track defined by a distance of the second track from the second common rotation point.

9. The method of claim 8 , further comprising:

determining a fifth angle associated with the first track defined by a straight portion of the paving path; and

determining a sixth angle associated with the second track defined by the straight portion.

10. The method of claim 9 , further comprising:

transitioning the first track from the first angle to the fifth angle; and

transitioning the second track from the second angle to the sixth angle.

11. The method of claim 8 , further comprising:

transitioning the first track from the first angle to the fifth angle;

transitioning the second track from the second angle to the sixth angle.

12. The method of claim 11 , further comprising:

determining a first track function for smoothly transitioning the angle of the first track from the first angle to the fifth angle; and

determining a second track function for smoothly altering the angle of the second track from the second angle to the sixth angle.

13. A tool carrier comprising:

a chassis;

at least two steerable tracks connected to the chassis; and

at least one processor in data communication with a memory storing processor executable code for configuring the at least one processor to:

determine a common rotation point associated with a radius in a paving path;

determine a first angle associated with a first track, the first angle defined by a distance of the first track from the common rotation point;

steer the first track to the first angle;

determine a second angle associated with a second track, the second angle defined by a distance of the second track from the common rotation point;

steer the second track to the second angle;

determine a second common rotation point associated with a second radius portion, different from and contiguous with the first radius portion;

determine a third angle associated with the first track defined by a distance of the first track from the second common rotation point; and

determine a fourth angle associated with the second track defined by a distance of the second track from the second common rotation point,

wherein both the first radius and second radius comprises a portion of a path of the tool carrier.

14. The tool carrier of claim 13 , wherein the processor executable code further configures the at least one processor to:

determine a fifth angle associated with a third track, the third angle defined by a distance of the third track from the common rotation point; and

steer the third track to the fifth angle.

15. The tool carrier of claim 14 , wherein the processor executable code further configures the at least one processor to:

determine a sixth angle associated with the first track defined by a straight portion of the paving path;

determine a seventh angle associated with the second track defined by the straight portion of the paving path; and

determine a eight angle associated with the third track defined by the straight portion of the paving path.

16. The tool carrier of claim 15 , wherein the processor executable code further configures the at least one processor to:

transition the first track from the first angle to the sixth angle;

transition the second track from the second angle to the seventh angle; and

transition the third track from the third angle to the eight angle.

17. The tool carrier of claim 14 , wherein the processor executable code further configures the at least one processor to:

determine a sixth angle associated with the third track defined by a distance of the third track from the second common rotation point.

18. The tool carrier of claim 17 , wherein the processor executable code further configures the at least one processor to:

transition the third track from the third angle to the sixth angle.

19. The tool carrier of claim 14 , wherein the processor executable code further configures the at least one processor to:

determine a first track function for smoothly altering the angle of the first track from the first angle to carry a tool through a variable radius curve;

determine a second track function for smoothly altering the angle of the second track from the first angle to carry a tool through the variable radius curve; and

determine a third track function for smoothly altering the angle of the third track from the first angle to carry a tool through the variable radius curve.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2021
From: FARR, THOMAS C.; BUMANN, RAYMOND J., III; SCHAEDING, CHAD
To: GOMACO CORPORATION
Reel/Frame 054879/0400 →
Continuity (3)
Continuation 15873206 · Jan 17, 2018
Provisional Application 62447153 · Jan 17, 2017
Related Publication 20210114655A1 · Apr 22, 2021