# US 11,111,646 B2 · System and method for controlling an arm of a work vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,111,646 B2 - Document ID: US11111646B2 - Status: Granted - Kind: B2 - Application number: 15/442,031 - Filed: 2017-02-24 - Published: 2018-08-30 - Granted: 2021-09-07 - Earliest claimed: 2017-02-24 - Assignees: CNH Industrial America LLC - Applicants: CNH Industrial America LLC - Inventors: Brady Dorr Lewis - Web page: https://patentgrep.com/patent/US11111646B2 ## CPC - E02F 3/3414: {the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader} - E02F 3/431: {for bucket-arms, front-end loaders, dumpers or the like} - E02F 3/7622: {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} - E02F 3/96: with arrangements for alternate {or simultaneous} use of different digging elements {(E02F3/7604, E02F3/769, E02F3/78 take precedence; quick-acting devices to connect tools to arms or booms E02F3/3609, for arms to tractors or the like E02F3/627)} - E02F 9/2033: {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)} - E02F 9/265: {with follow-up actions (e.g. control signals sent to actuate the work tool)} - G16Z 99/00: Subject matter not provided for in other main groups of this subclass - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) - G16Z: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR ## 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. ## Claims ### Claim 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 3) 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. ### Claim 5 (depends on 4) 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. ### Claim 6 (depends on 1) 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. ### Claim 7 (depends on 1) 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. ### Claim 8 (depends on 1) The arm control system of claim 1, wherein the restricted-height implement comprises a dozer blade. ### Claim 9 (depends on 1) 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. ### Claim 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. ### Claim 11 (depends on 10) 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. ### Claim 12 (depends on 10) 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. ### Claim 13 (depends on 10) The method of claim 10, wherein the signal indicative of the type of implement is received from a user interface. ### Claim 14 (depends on 10) The method of claim 10, wherein the signal indicative of the type of implement is received from a communication interface. ### Claim 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. ### Claim 16 (depends on 15) 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. ### Claim 17 (depends on 15) 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. ### Claim 18 (depends on 15) 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. ### Claim 19 (depends on 15) 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. ### Claim 20 (depends on 15) The apparatus of claim 15, wherein the restricted-height implement comprises a dozer blade.