A hydraulic control system for a machine, the machine having a service brake and a parking brake, includes a hydraulic fluid tank, a pump configured to withdraw hydraulic fluid from the hydraulic fluid tank, and a first accumulator and a second accumulator fluidly connected to the pump. The first and second accumulators configured to supply the hydraulic fluid to the service brake and the parking brake. Further, a resolver valve fluidly coupled between the first and second accumulators and configured to selectively supply the hydraulic fluid from one of the first and second accumulators to the parking brake.

A valve assembly is provided. The valve assembly includes a valve body defining a bore. The valve assembly further includes a plunger adjacent the valve body. The valve assembly further includes a modulating biasing member abutting the plunger. The valve assembly further includes a spool disposed in the bore and adjacent the plunger with the modulating biasing member disposed therebetween. The plunger is configured to move the spool between a neutral position and an energized position. The spool defines a socket. The valve assembly further includes a piston disposed in the socket and configured to move between a first piston position and a second piston position within the socket.

A hydraulic brake system for a work machine is disclosed. The hydraulic brake system comprises a first hydraulic circuit including a first pump for providing fluid flow to a cooling system, a second hydraulic circuit including a second pump for providing fluid flow to a plurality of hydraulic systems, a valve configured to allow fluid flow from the second hydraulic circuit to the first hydraulic circuit, and a control unit configured to control the valve based on real-time braking requirements and signals received from a plurality of sensors disposed on the work machine.

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.