# US 2025/0147540 A1 · Adaptive Haptic Feedback Control of a User Interface > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0147540 A1 - Document ID: US20250147540A1 - Status: Published application - Kind: A1 - Application number: 18/910,394 - Filed: 2024-10-09 - Published: 2025-05-08 - Earliest claimed: 2023-11-02 - Assignees: AGCO International GmbH - Applicants: AGCO International GmbH - Inventors: Alexander Barzen; Korbinian Hornung - Web page: https://patentgrep.com/patent/US20250147540A1 ## CPC - G05G 9/047: the controlling member being movable by hand about orthogonal axes, e.g. joysticks {(for switches H01H25/04)} - A01B 63/1006: {the hydraulic or pneumatic means structurally belonging to the tractor} - A01B 71/02: Setting or adjusting mechanisms - G06F 3/016: {Input arrangements with force or tactile feedback as computer generated output to the user} - A01B 59/066: {of the type comprising at least two lower arms and one upper arm generally arranged in a triangle, e.g. three-point hitches} - G05G 2009/04766: {providing feel, e.g. indexing means, means to create counterforce} - G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00) - A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A user interface for controlling an agricultural machine and a method of adjusting a haptic feedback of an user interface including method acts for determining a set point position, determining a current position of the input element, and adjusting a ripple characteristic of at least one ripple according to a second ripple characteristic being different to a first ripple characteristic if the at least one ripple is located within an adjustment range extending between the set point position and the current position of the input element. ## Claims ### Claim 1 A user interface for controlling an agricultural machine, comprising a moveable input element; a feedback actuator for inducing a haptic feedback in the input element according to a force feedback characteristic, wherein the force feedback characteristic comprises at least one ripple having an adjustable ripple characteristic; and a control unit configured to adjust the ripple characteristic of the at least one ripple according to a first ripple characteristic or a second ripple characteristic being different to the first ripple characteristic. ### Claim 2 (depends on 1) The user interface of claim 1, wherein the control unit is configured to adjust the ripple characteristic in response to a movement of the input element. ### Claim 3 (depends on 1) The user interface of claim 1, wherein the control unit is configured to: determine a set point position; and determine a current position of the input element. ### Claim 4 (depends on 3) The user interface of claim 3, wherein the control unit is configured to adjust the ripple characteristic according to the second ripple characteristic if the current position of the input element diverges from the set point position. ### Claim 5 (depends on 3) The user interface of claim 3, wherein the control unit is configured to adjust the ripple characteristic according to the first ripple characteristic if the current position of the input element converges to the set point position. ### Claim 6 (depends on 3) The user interface of claim 3, wherein the control unit is configured to adjust the ripple characteristic according to the second ripple characteristic if the at least one ripple is located within an adjustment range extending between the set point position and the current position of the input element. ### Claim 7 (depends on 6) The user interface of claim 6, wherein the control unit is configured to adjust the ripple characteristic according to the first ripple characteristic if the at least one ripple is located out of the adjustment range. ### Claim 8 (depends on 1) The user interface of claim 1, wherein the first or the second ripple characteristic is U-shaped, V-shaped or W-shaped. ### Claim 9 (depends on 3) The user interface of claim 3, wherein the control unit is configured to assign a set point ripple of the force feedback characteristic to the set point position; and adjust the position of the set point ripple according to the adjustment of the set point position, wherein the set point position is adjustable. ### Claim 10 (depends on 9) The user interface of claim 9, wherein the set point ripple has a ripple resistance being higher than a ripple resistance of a ripple adjacent to the set point ripple. ### Claim 11 (depends on 1) The user interface of claim 1, wherein the force feedback characteristic comprises at least one adjustable end position ripple having a ripple resistance being higher than a ripple resistance of a ripple adjacent to the end position ripple. ### Claim 12 (depends on 11) The user interface of claim 11, wherein the control unit is configured to adjust the ripple characteristic of the at least one ripple according to a third ripple characteristic or a fourth ripple characteristic being different to the third ripple characteristic. ### Claim 13 (depends on 1) An agricultural machine comprising a hitch system; and a user interface of claim 1, wherein the hitch system is moveable between an upper limit and a lower limit, wherein the control unit is configured to control a movement of the hitch system according to an operation of the user interface. ### Claim 14 A method of adjusting a haptic feedback of a user interface, comprising: determining a set point position; determining a current position of the input element; and adjusting a ripple characteristic of at least one ripple according to a second ripple characteristic being different to a first ripple characteristic if the at least one ripple is located within an adjustment range extending between the set point position and the current position of the input element. ### Claim 15 (depends on 14) The method of claim 14, further comprising: adjusting the ripple characteristic according to the first ripple characteristic if the at least one ripple is located out of the adjustment range. ### Claim 16 (depends on 14) The method of claim 14, further comprising: adjusting the ripple characteristic according to the second ripple characteristic if the current position of the input element diverges from the set point position; and adjusting the ripple characteristic according to the first ripple characteristic if the current position of the input element converges to the set point position.