IP Library › Granted Patent US 9,752,300
Granted Patent B2
US 9,752,300 · App. 14/697,657 · Granted Sep 5, 2017

System and method for positioning implement of machine

Inventors: Insu Chang (Peoria, IL); Salim A. Jaliwala (Peoria, IL); Yanchai Zhang (Dunlap, IL); James S. Chase (Chillicothe, IL)
Assignee: Caterpillar Inc.
E02F3/844E02F3/7627E02F3/7631E02F9/265
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Quick Facts
Patent No.
US 9,752,300
App. No.
14/697,657
Granted
Sep 5, 2017
Kind
B2
Abstract

A system associated with an implement of a machine is provided. The system includes a plane determination module configured to determine a track plane based on a relationship between at least two tracks of the machine. The system also includes an implement control module. The implement control module is configured to compute a location of two or more blade tip points of the implement of the machine in three dimensional space based on at least one constraint of a geometry of the implement. The implement control module is also configured to determine a blade tip point plane based on a relationship between at least two blade tip points of the implement. The implement control module is further configured to compare the blade tip point plane with the track plane and determine if the blade tip point plane is parallel to the track plane based on the comparison.

Claims (44)

1. A system associated with an implement of a machine, the system comprising:

a plane determination module configured to determine a track plane based on a relationship between at least two tracks of the machine; and

an implement control module coupled to the plane determination module, the implement control module configured to:

compute a location of two or more blade tip points of the implement of the machine in three dimensional space based on at least one constraint of a geometry of the implement;

determine a blade tip point plane based on a relationship between at least two blade tip points of the implement;

compare the blade tip point plane with the track plane; and

determine if the blade tip point plane is parallel to the track plane based on the comparison.

2. The system of claim 1 , wherein the implement control module is further configured to:

set a position of the implement in three dimensional space based on the determination.

3. The system of claim 2 , wherein the implement control module is configured to adjust a tilt angle of the implement for setting the position of the implement.

4. The system of claim 3 , wherein the implement control module is coupled to an output module.

5. The system of claim 4 , wherein the implement control module is configured to notify an operator of the tilt angle of the implement.

6. The system of claim 1 , wherein the implement control module is coupled to actuators associated with the implement.

7. The system of claim 1 , wherein the at least one constraint includes matching of an elevation of the two or more blade tip points of the implement and an elevation of a blade midpoint of the implement.

8. A method for analyzing a position of an implement of a machine, the method comprising:

determining a track plane based on a relationship between at least two tracks of the machine;

computing a location of two or more blade tip points of the implement of the machine in three dimensional space based on at least one constraint of a geometry of the implement;

determining a blade tip point plane based on a relationship between at least two blade tip points of the implement;

comparing the blade tip point plane with the track plane; and

determining if the blade tip point plane is parallel to the track plane based on the comparison.

9. The method of claim 8 further comprising:

setting a position of the implement in three dimensional space based on the determination.

10. The method of claim 9 , wherein the setting step further comprises:

adjusting a tilt angle of the implement for setting the position of the implement.

11. The method of claim 10 further comprising:

notifying an operator of the tilt angle of the implement.

12. The method of claim 8 , wherein the at least one constraint includes matching of an elevation of the two or more blade tip points of the implement and an elevation of a blade midpoint of the implement.

13. A track-type machine comprising:

an engine;

a frame;

an implement coupled to the frame of the machine;

a plane determination module configured to determine a track plane based on a relationship between at least two tracks of the machine; and

an implement control module coupled to the plane determination module, the implement control module configured to:

compute a location of two or more blade tip points of the implement of the machine in three dimensional space based on at least one constraint of a geometry of the implement;

determine a blade tip point plane based on a relationship between at least two blade tip points of the implement;

compare the blade tip point plane with the track plane; and

determine if the blade tip point plane is parallel to the track plane based on the comparison.

14. The machine of claim 13 , wherein the implement control module is further configured to:

set a position of the implement in three dimensional space based on the determination.

15. The machine of claim 14 , wherein the implement control module is configured to adjust a tilt angle of the implement for setting the position of the implement.

16. The machine of claim 15 , wherein the implement control module is coupled to an output module.

17. The machine of claim 16 , wherein the implement control module is configured to notify an operator of the tilt angle of the implement.

18. The machine of claim 13 , wherein the implement control module is coupled to actuators associated with the implement.

19. The machine of claim 13 , wherein the at least one constraint includes matching of an elevation of the two or more blade tip points of the implement and an elevation of a blade midpoint of the implement.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2015
From: CHANG, INSU; JALIWALA, SALIM A; ZHANG, YANCHAI; CHASE, JAMES S.
To: CATERPILLAR INC.
Reel/Frame 035507/0338 →
Continuity (1)
Related Publication 20160319511A1 · Nov 3, 2016