# US 2026/0116360 A1 · Dual brake valve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0116360 A1 - Document ID: US20260116360A1 - Status: Published application - Kind: A1 - Application number: 18/926,884 - Filed: 2024-10-25 - Published: 2026-04-30 - Earliest claimed: 2024-10-25 - Assignees: Zf Off-Highway Solutions Minnesota Inc. - Applicants: ZF Off-Highway Solutions Minnesota Inc. - Inventors: Peter Backes - Web page: https://patentgrep.com/patent/US20260116360A1 ## CPC - B60T 11/21: with two pedals operating on respective circuits, pressures therein being equalised when both pedals are operated together, e.g. for steering (steering non-deflectable wheels or endless tracks by differentially driving ground-engaging elements on opposite vehicle sides using brakes as main steering effecting means B62D11/08) - B60T 13/148: {Arrangements for pressure supply} - B60T 13/141: {Systems with distributor valve (B60T13/147 takes precedence)} - B62D 11/08: using brakes or clutches as main steering-effecting means - 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 - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) ## Abstract The present disclosure relates to a dual brake valve (10) configured to actuate two brakes of a vehicle. The dual brake valve (10) comprises a pressure input (13), a first brake pressure output (26) for actuating a first brake (104) and a second brake pressure output (46) for actuating a second brake (106). The dual brake valve (10) further comprises a first valve (24) fluidly connected to the pressure input (13) and configured to pressurize the first brake pressure output (26). The dual brake valve further comprises a second valve (44) fluidly connected to the pressure input (13) and configured to pressurize the second brake pressure output (46). The dual brake valve further comprises a pressure balancing passage (16) configured to bidirectionally fluidly connect the first valve (24) and the second valve (44) to balance a pressure between the first brake pressure output and the second brake pressure output. ## Claims ### Claim 1 A dual brake valve (10) for actuating two brakes (104, 106) of a vehicle (100), the dual brake valve (10) comprising: a pressure input (13); a first brake pressure output (26) for actuating a first brake (104); a second brake pressure output (46) for actuating a second brake (106); a first valve (24) fluidly connected to the pressure input (13) and configured to pressurize the first brake pressure output (26); a second valve (44) fluidly connected to the pressure input (13) and configured to pressurize the second brake pressure output (46); and a pressure balancing passage (16) configured to bidirectionally fluidly connect the first valve (24) and the second valve (44) to balance a pressure between the first brake pressure output (26) and the second brake pressure output (46), wherein the dual brake valve (10) is configured to balance a pressure between the first brake pressure output (26) and the second brake pressure output (46) by fluidly connecting the first valve (24) and the second valve (44) via the pressure balancing passage (16) such that the first valve (24) and the second valve (44) are actuated substantially equally. ### Claim 2 (depends on 1) The dual brake valve (10) according to claim 1, wherein the dual brake valve (10) comprises a first reaction area (34) configured to actuate the first valve (24) when pressurized, and a second reaction area (54) configured to actuate the second valve (44) when pressurized, wherein the first reaction area (34) and the second reaction area (54) are fluidly connectable to the pressure input (13). ### Claim 3 (depends on 2) The dual brake valve (10) according to claim 2, wherein the dual brake valve (10) comprises a first check valve (28) configured to enable a flow from the first brake pressure output (26) to the second reaction area (54) via the pressure balancing passage (16), and a second check valve (48) configured to enable a flow from the second brake pressure output (46) to the first reaction area (34) via the pressure balancing passage (16). ### Claim 4 (depends on 2) The dual brake valve (10) according to claim 2, wherein the dual brake valve (10) comprises a first counterbalancing channel (31) configured to counterbalance a force exerted by the first reaction area (34) when pressurized and a second counterbalancing channel (51) configured to counterbalance a force exerted by the second reaction area (54) when pressurized. ### Claim 5 (depends on 4) The dual brake valve (10) according to claim 4, wherein the dual brake valve (10) comprises a first check valve (28) configured to enable a flow from the first brake pressure output (26) to the second reaction area (54) via the pressure balancing passage (16), and a second check valve (48) configured to enable a flow from the second brake pressure output (46) to the first reaction area (34) via the pressure balancing passage (16). ### Claim 6 (depends on 5) The dual brake valve (10) according to claim 5, wherein the first check valve (28) is configured to enable a flow from the first brake pressure output (26) to the first reaction area (34) and the second check valve (48) is configured to enable a flow from the second brake pressure output (46) to the second reaction area (54). ### Claim 7 (depends on 2) The dual brake valve (10) according to claim 2, wherein the dual brake valve (10) is configured to release a pressure from the first reaction area (34) when the first valve (24) is released, and to release a pressure from the second reaction area (54) when the second valve (44) is released. ### Claim 8 (depends on 1) The dual brake valve (10) according to claim 1, wherein the first valve (24) and the second valve (44) are proportional valves. ### Claim 9 (depends on 1) The dual brake valve (10) according to claim 1, wherein the dual brake valve (10) is configured to balance a pressure between the first brake pressure output (26) and the second brake pressure output (46) only when both the first valve (24) and the second valve (44) are actuated. ### Claim 10 (depends on 9) The dual brake valve (10) according to claim 9, wherein the dual brake valve (10) is configured to balance a pressure between the first brake pressure output (26) and the second brake pressure output (46) only when either of the first valve (24) or the second valve (44) is fully actuated. ### Claim 11 (depends on 9) The dual brake valve (10) according to claim 9, wherein the dual brake valve is configured to balance a pressure between the first brake pressure output (26) and the second brake pressure output (46) when the first valve (24) or the second valve (44) is released from a state in which both the first valve (24) and the second valve (44) are actuated. ### Claim 12 (depends on 1) The dual brake valve (10) according to claim 1, wherein the first valve (24) comprises five ports and four possible positions and the second valve (44) comprises five ports and four possible positions. ### Claim 13 (depends on 1) A braking system (200) of a vehicle (100), comprising the dual brake valve (10) according to claim 1, and two brakes (104, 106) for braking the vehicle (100). ### Claim 14 (depends on 1) A vehicle (100) comprising: the dual brake valve (10) according to claim 1; and two brakes (104, 106) for braking the vehicle (100).