IP Library › Granted Patent US 9,624,650
Granted Patent B2
US 9,624,650 · App. 14/704,401 · Granted Apr 18, 2017

System and method for implement control

Inventor: Kenneth L. Stratton (Dunlap, IL)
Assignee: Caterpillar Inc.
E02F9/265E02F3/7618
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,624,650
App. No.
14/704,401
Granted
Apr 18, 2017
Kind
B2
Abstract

A system associated with an implement of a machine is provided. The system includes a ground speed detection module configured to generate a signal indicative of a ground speed of the machine. The system further includes an implement control module coupled to the ground speed detection module. The implement control module receives the signal indicative of the ground speed of the machine. The implement control module detects at least one of the ground speed of the machine being less than a predetermined speed threshold and a rate of change of the ground speed being above a limit. The implement control module determines a presence of an obstruction in a path of the machine based, at least in part, on the detection. The implement control module further select a movement from a plurality of movements associated with the implement and triggers the movement of the implement.

Claims (59)

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

a ground speed detection module configured to generate a signal indicative of a ground speed of the machine; and

an implement control module coupled to the ground speed detection module, the implement control module configured to:

receive the signal indicative of the ground speed of the machine;

detect at least one of the ground speed of the machine being less than a predetermined speed threshold and a rate of change of the ground speed being above a limit;

determine a presence of an obstruction in a path of the machine based, at least in part, on the detection; and

select a movement from a plurality of movements associated with the implement based on the determination; and

trigger the movement of the implement based on the selection.

2. The system of claim 1 further comprising a tractive force monitoring module configured to generate a signal indicative of a tractive force generated by the machine.

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

receive the signal indicative of the tractive force of the machine;

compare the tractive force with a predetermined threshold;

detect if the tractive force is greater than the predetermined threshold; and

determine the presence of the obstruction based on the detection.

4. The system of claim 2 , wherein the tractive force monitoring module is further configured to generate a signal indicative of a torque associated with the implement.

5. The system of claim 2 , wherein the tractive force monitoring module receives an input from at least one of an engine speed sensor, a transmission output speed sensor, an implement torque sensor, or a combination thereof.

6. The system of claim 1 , wherein the ground speed detection module receives an input from at least one of a ground speed sensor, a gear transmission sensor, an implement position sensor, or a combination thereof.

7. The system of claim 1 , wherein the implement control module is activated manually based on a mode selection.

8. The system of claim 1 , wherein the plurality of movements includes controlling at least one of a pitch, a yaw, or a combination thereof of a blade of the machine.

9. The system of claim 1 further comprising an output module coupled to the implement control module.

10. The system of claim 9 , wherein the implement control module is configured to notify an operator of the presence of the obstruction based on the determination.

11. The system of claim 1 further comprising a perception module coupled to the implement control module.

12. The system of claim 11 , wherein the perception module is further configured to:

receive a signal indicative of an effective density of rocks in a volume of material projected to be moved by the implement of the machine;

determine a tendency of the machine to be obstructed based on the received signal; and

adjust at least one of the predetermined speed threshold and the limit based on the tendency.

13. A method for automatically controlling an implement of a machine, the method comprising:

receiving a signal indicative of a ground speed of the machine;

detecting at least one of the ground speed of the machine being less than a predetermined speed threshold and a rate of change of the ground speed being above a limit;

determining a presence of an obstruction in a path of the machine based, at least in part, on the detection;

selecting a movement from a plurality of movements associated with the implement based on the determination; and

triggering the movement of the implement based on the selection.

14. The method of claim 13 further comprising:

receiving a signal indicative of a tractive force of the machine;

comparing the tractive force with a predetermined threshold;

detecting if the tractive force is greater than the predetermined threshold; and

determining the presence of the obstruction based on the detection.

15. The method of claim 13 , wherein the plurality of movements includes controlling at least one of a pitch, a yaw, or a combination thereof of a blade of the machine.

16. The method of claim 13 further comprising:

receiving a signal indicative of a density of rocks in a volume of material projected to be moved by the implement of the machine;

determining a tendency of the machine to be obstructed based on the received signal; and

adjusting at least one of the predetermined speed threshold and the limit based on the tendency.

17. A machine comprising:

an engine;

an implement;

a ground speed detection module configured to generate a signal indicative of a ground speed of the machine; and

an implement control module coupled to the ground speed detection module, the implement control module configured to:

receive the signal indicative of the ground speed of the machine;

detect at least one of the ground speed of the machine being less than a predetermined speed threshold and a rate of change of the ground speed being above a limit;

determine a presence of an obstruction in a path of the machine based, at least in part, on the detection; and

select a movement from a plurality of movements associated with the implement based on the determination; and

trigger the movement of the implement based on the selection.

18. The machine of claim 17 further comprising a tractive force monitoring module is further configured to generate a signal indicative of a tractive force generated by the machine.

19. The machine of claim 18 , wherein the implement control module is further configured to:

receive the signal indicative of the tractive force of the machine;

compare the tractive force with a predetermined threshold;

detect if the tractive force is greater than the predetermined threshold; and

determine the presence of the obstruction based on the detection.

20. The machine of claim 17 further comprising an output module coupled to the implement control module.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 5, 2015
From: STRATTON, KENNETH L.
To: CATERPILLAR INC.
Reel/Frame 035567/0898 →
Continuity (1)
Related Publication 20160326725A1 · Nov 10, 2016