System and method for controlling an arm of a work vehicle

Patent metadata

Field	Value
Publication number	US-11111646-B2
Application number	US-201715442031-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Feb 24, 2017
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

An arm control system for a work vehicle includes a controller having a memory and a processor. The controller is configured to receive a signal indicative of a type of implement coupled to an arm of the work vehicle. The controller is also configured to enable movement of the arm between a lowered position and a raised position while the type of implement is an unrestricted-height implement. In addition, the controller is configured to enable movement of the arm between the lowered position and an intermediate position and to block upward movement of the arm beyond the intermediate position while the type of implement is a restricted-height implement.

First claim

The invention claimed is:

1. An arm control system for a work vehicle, comprising:
a controller comprising a memory and a processor, wherein the controller is configured to:
receive a signal indicative of a type of implement coupled to an arm of the work vehicle;
enable movement of the arm between a lowered position and a raised position while the type of implement is an unrestricted-height implement; and
enable movement of the arm between the lowered position and an intermediate position and block upward movement of the arm beyond the intermediate position while the type of implement is a restricted-height implement;
wherein the arm is configured to position the unrestricted-height implement at a first height while the arm is in the raised position, the arm is configured to position the restricted-height implement at a second height while the arm is in the intermediate position, and the second height is below the first height.

2. The arm control system of claim 1 , wherein the second height corresponds to a first height limit while the restricted-height implement is a first type of restricted-height implement, the second height corresponds to a second height limit while the restricted-height implement is a second type of restricted-height implement, and the first height limit is above the second height limit.

3. The arm control system of claim 1 , wherein the controller is configured to output a second signal to an arm actuator assembly to control movement of the arm.

4. The arm control system of claim 3 , wherein the arm actuator assembly comprises a lift actuator configured to couple to the arm and to a chassis of the work vehicle.

5. The arm control system of claim 4 , wherein the lift actuator comprises a hydraulic lift cylinder, the arm actuator assembly comprises a valve assembly communicatively coupled to the controller and fluidly coupled to the hydraulic lift cylinder, and the valve assembly is configured to control fluid flow to and from the hydraulic lift cylinder based on the second signal.

6. The arm control system of claim 1 , comprising a user interface communicatively coupled to the controller, wherein the user interface is configured to output the signal indicative of the type of implement.

7. The arm control system of claim 1 , comprising a communication interface communicatively coupled to the controller, wherein the communication interface is configured to output the signal indicative of the type of implement.

8. The arm control system of claim 1 , wherein the restricted-height implement comprises a dozer blade.

9. The arm control system of claim 1 , wherein the arm is configured to position the restricted-height implement at a third height while the arm is in the lowered position, and the second height is about 0.3 meters above the third height.

10. A method for controlling an arm of a work vehicle, comprising:
receiving, via a controller, a signal indicative of a type of implement coupled to the arm of the work vehicle;
enabling, via the controller, movement of the arm between a lowered position and a raised position while the type of implement is an unrestricted-height implement; and
enabling, via the controller, movement of the arm between the lowered position and an intermediate position while the type of implement is a restricted-height implement, and blocking, via the controller, upward movement of the arm beyond the intermediate position while the type of implement is the restricted-height implement;
wherein the arm is configured to position the unrestricted-height implement at a first height while the arm is in the raised position, the arm is configured to position the restricted-height implement at a second height while the arm is in the intermediate position, and the second height is below the first height.

11. The method of claim 10 , wherein the second height corresponds to a first height limit while the restricted-height implement is a first type of restricted-height implement, the second height corresponds to a second height limit while the restricted-height implement is a second type of restricted-height implement, and the first height limit is above the second height limit.

12. The method of claim 10 , wherein enabling and blocking movement of the arm comprises outputting, via the controller, a second signal to an arm actuator assembly.

13. The method of claim 10 , wherein the signal indicative of the type of implement is received from a user interface.

14. The method of claim 10 , wherein the signal indicative of the type of implement is received from a communication interface.

15. An apparatus comprising:
at least one non-transitory, tangible, machine-readable medium having instructions encoded thereon for execution by a processor, the instructions comprising:
instructions to receive a signal indicative of a type of implement coupled to an arm of a work vehicle;
instructions to enable movement of the arm between a lowered position and a raised position while the type of implement is an unrestricted-height implement; and
instructions to enable movement of the arm between the lowered position and an intermediate position and to block upward movement of the arm beyond the intermediate position while the type of implement is a restricted-height implement;

wherein the arm is configured to position the unrestricted-height implement at a first height while the arm is in the raised position, the arm is configured to position the restricted-height implement at a second height while the arm is in the intermediate position, and the second height is below the first height.

16. The apparatus of claim 15 , wherein the second height corresponds to a first height limit while the restricted-height implement is a first type of restricted-height implement, the second height corresponds to a second height limit while the restricted-height implement is a second type of restricted-height implement, and the first height limit is above the second height limit.

17. The apparatus of claim 15 , wherein the instructions to enable movement of the arm and to block movement of the arm comprise instructions to output a second signal to an arm actuator assembly.

18. The apparatus of claim 15 , wherein the instructions to receive the signal indicative of the type of implement comprise instructions to receive the signal from a user interface.

19. The apparatus of claim 15 , wherein the instructions to receive the signal indicative of the type of implement comprise instructions to receive the signal from a communication interface.

20. The apparatus of claim 15 , wherein the restricted-height implement comprises a dozer blade.

Assignees

• Cnh Ind America Llc

Inventors

• Lewis Brady Dorr

Classifications

• E02F9/2033

  Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin (sub-groups of E02F3/431 of E02F3/435 take precedence; for turntables E02F9/123) · CPC title

• E02F3/7622

  Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers · CPC title

• G16Z99/00

  Subject matter not provided for in other main groups of this subclass · CPC title

• E02F3/3414 Primary

  the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader · CPC title

• E02F9/265

  with follow-up actions (e.g. control signals sent to actuate the work tool) · CPC title