# US 11,897,493 B2 · Anti-lock braking system for utility vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,897,493 B2 - Document ID: US11897493B2 - Status: Granted - Kind: B2 - Application number: 17/193,504 - Filed: 2021-03-05 - Published: 2021-08-26 - Granted: 2024-02-13 - Earliest claimed: 2017-11-22 - Assignees: Polaris Industries Inc. - Applicants: Polaris Industries Inc. - Inventors: Harry Pongo; Brian E. Brandt; Joshua T. Weed; Agata Kaleta; Jacob J. Minick; Ryan D. Kincade - Web page: https://patentgrep.com/patent/US11897493B2 ## CPC - B60W 50/12: Limiting control by the driver depending on vehicle state, e.g. interlocking means for the control input for preventing unsafe operation - B60T 8/32: responsive to a speed condition, e.g. acceleration or deceleration ({using electrical circuitry or regulation means B60T8/17} ; B60T8/28 takes precedence; electric devices on electrically propelled vehicles indicating the wheel slip B60L3/10; measuring linear or angular speed per se G01P3/00) - B60W 30/18109: {Braking} - B60W 40/10: related to vehicle motion - B60W 2050/146: {Display means} - B60W 2510/18: Braking system - B60W 2520/28: Wheel speed - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES ## Abstract A utility vehicle includes a frame and a plurality of ground-engaging members supporting the frame. Each of the plurality of ground-engaging members is configured to rotate about an axle. The utility vehicle further includes a powertrain assembly supported by the frame and a braking system configured to operate in a normal run mode and an anti-lock braking mode. The braking system includes an anti-lock braking control module operably coupled to the plurality of ground-engaging members and configured to automatically engage the anti-lock braking mode in response to a predetermined condition. ## Claims ### Claim 1 A utility vehicle, comprising: a frame; a plurality of ground-engaging members supporting the frame and each of the plurality of ground-engaging members is configured to rotate about an axle; a powertrain assembly supported by the frame, the plurality of ground-engaging members operably connected to the powertrain in a plurality of drive modes including a 4×2 drive mode and a 4×4 drive mode; an anti-lock braking system configured to operate in a first operational mode corresponding to the 4×2 drive mode and a second operational mode corresponding to the 4×4 drive mode; and wherein the plurality of ground engaging members are operably connected to the powertrain in at least a third drive mode different from the first drive mode and the second drive mode and the third drive mode is a reverse mode. ### Claim 2 (depends on 1) The utility vehicle of claim 1, wherein the anti-lock braking system is operated through a display positioned on the vehicle. ### Claim 3 (depends on 1) The utility vehicle of claim 1, wherein the anti-lock braking system is configured to reduce engine torque and speed according to the first operational mode or the second operational mode. ### Claim 4 (depends on 3) The utility vehicle of claim 3, further comprising a speed sensor operably coupled to at least one of the plurality of ground-engaging members, the anti-lock braking system configured to actively communicate with the speed sensor in the first operational mode or the second operational mode. ### Claim 5 (depends on 4) The utility vehicle of claim 4, further comprising an engine control module, the anti-lock braking system configured to actively communicate with the engine control module in the first operational mode or the second operational mode. ### Claim 6 (depends on 1) The utility vehicle of claim 1, wherein: the plurality of ground-engaging members includes: a first front ground-engaging member; a second front ground-engaging member; a first rear ground-engaging member; and a second rear ground-engaging member; and the anti-lock braking system includes: a first front brake caliper operably coupled to the first front ground-engaging member; a second front brake caliper operably coupled to the second front ground-engaging member; a first rear brake caliper operably coupled to the first rear ground-engaging member; a second rear brake caliper operably coupled to the second rear ground-engaging member; and wherein the anti-lock braking system applies an amount of braking pressure to each of the first front brake caliper, the second front brake caliper, the first rear brake caliper, and the second rear brake caliper according to one of the first operational mode or the second operational mode. ### Claim 7 (depends on 6) The utility vehicle of claim 6, further comprising a plurality of speed sensors respectively operably coupled to each of the plurality of ground-engaging members, the anti-lock braking system configured to actively communicate with the plurality of speed sensors, the first operational mode and the second operational mode operating according to the plurality of speed sensors. ### Claim 8 (depends on 7) The utility vehicle of claim 7, further comprising an engine control module, the anti-lock braking system configured to actively communicate with the engine control module, the first operational mode and the second operational mode operating according to the engine control module. ### Claim 9 (depends on 1) The utility vehicle of claim 1, wherein the plurality of ground-engaging members are operably connected to the powertrain in at least a fourth drive mode different from the first, second and third drive modes. ### Claim 10 (depends on 9) The utility vehicle of claim 9, wherein the fourth drive mode is a 4×1 mode. ### Claim 11 A method of operating a braking assembly of a utility vehicle including a plurality of brake calipers and an anti-lock braking control module operably coupled to the plurality of brake calipers, the method comprising: selecting one of a 4×2 drive mode and a 4×4 drive mode; and engaging the brake calipers via the anti-lock braking control module in a first operational mode when the 4×2 drive mode is selected, or in a second operational mode when the 4×4 drive mode is selected and reducing engine torque and speed according to the first operational mode or the second operational mode. ### Claim 12 (depends on 11) The method of claim 11, wherein the step of selecting comprises selecting one of the first drive mode, the second drive mode, and a third drive mode different from the first and second drive modes. ### Claim 13 (depends on 11) The method of claim 11, further comprising sensing a speed of at least one of a plurality of ground-engaging members of the utility vehicle, and actively communicating between the anti-lock braking control module and the speed sensor in the first operational mode or the second operational mode. ### Claim 14 (depends on 13) The method of claim 13, further comprising actively communicating between the anti-lock braking control module and the engine control module in the first operational mode or the second operational mode. ### Claim 15 (depends on 11) The method of claim 11, wherein the step of engaging the plurality of brake calipers comprises a first front brake caliper, a second front brake caliper, a first rear brake caliper, and a second rear brake caliper, according to one of the first operational mode or the second operational mode. ### Claim 16 A utility vehicle, comprising: a frame; a plurality of ground-engaging members supporting the frame and each of the plurality of ground-engaging members is configured to rotate about an axle; a powertrain assembly supported by the frame, the plurality of ground-engaging members operably connected to the powertrain in a plurality of drive modes including a 4×2 drive mode and a 4×4 drive mode; an anti-lock braking system configured to operate in a first operational mode corresponding to the 4×2 drive mode and a second operational mode corresponding to the 4×4 drive mode, wherein the anti-lock braking system is configured to reduce engine torque and speed according to the first operational mode or the second operational mode.