A brake system for a motor vehicle, having a first hydraulic brake device configured to brake wheels on a first axle of the motor vehicle, a first control unit configured to control the braking operation of the wheels on the first axle; and a second hydraulic brake device configured to brake the wheels on a second axle of the motor vehicle, and a second control unit configured to control the braking operation of the wheels on the second axle. The first control unit is coupled with the second control unit via a communication channel. The first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, the first control unit furthermore being configured to transmit a data signal on the basis of the received data via the communication channel to the second control unit.

A valve assembly including: a valve body comprising a valve chamber, a first fluid port, a second fluid port, and a third fluid port, wherein the first fluid port, the second fluid port and the third fluid port are in fluid communication with the valve chamber; a first plunger movably disposed within the valve chamber, wherein when the first plunger is in the open position, the first fluid port is in fluid communication with the second fluid port, and wherein when the first plunger is in the closed position the first fluid port is fluidly isolated from the second fluid port; and a second plunger movably disposed within the valve chamber, wherein when the second plunger is in the open position the second fluid port (8b) is in fluid communication with the third fluid port, and wherein when the second plunger is in the closed position, the second fluid port is fluidly isolated from the third fluid port.

A brake system for a motor vehicle, having a first hydraulic brake device configured to brake wheels on a first axle of the motor vehicle, a first control unit configured to control the braking operation of the wheels on the first axle; and a second hydraulic brake device configured to brake the wheels on a second axle of the motor vehicle, and a second control unit configured to control the braking operation of the wheels on the second axle. The first control unit is coupled with the second control unit via a communication channel. The first control unit and the second control unit are each configured to receive data that are relevant for the control of the braking operation, the first control unit furthermore being configured to transmit a data signal on the basis of the received data via the communication channel to the second control unit.

A valve assembly including: a valve body comprising a valve chamber, a first fluid port, a second fluid port, and a third fluid port, wherein the first fluid port, the second fluid port and the third fluid port are in fluid communication with the valve chamber; a first plunger movably disposed within the valve chamber, wherein when the first plunger is in the open position, the first fluid port is in fluid communication with the second fluid port, and wherein when the first plunger is in the closed position the first fluid port is fluidly isolated from the second fluid port; and a second plunger movably disposed within the valve chamber, wherein when the second plunger is in the open position the second fluid port (8b) is in fluid communication with the third fluid port, and wherein when the second plunger is in the closed position, the second fluid port is fluidly isolated from the third fluid port.

A work vehicle is provided with a body and ground engaging means configured to allow motion of the body on ground, and braking means for locking ground engaging means, and an operative element carried by said body and configured to execute a specific working operation. The work vehicle further includes a first and a second joystick configured to respectively control the operation of ground engaging means and operative element based on movement of joystick and first and second input means configured respectively to control the activation/deactivation of parking brake functionality of the work vehicle and the activation/deactivation of hydraulic systems of work vehicle. Furthermore, the work vehicle includes a control system configured to receive second and first control signals derived from first and second input means respectively and each configured to assume a respective activation value and a respective deactivation value and inhibit the operation of the joystick linked to the operation of ground engaging means if both control signals are in activation state.