A method for monitoring an ABS control procedure in an electrically controllable brake system in a vehicle includes reading in input signals, wherein based on the input signals it is possible to derive currently prevailing control variables for the ABS control procedure and ABS control parameters that relate to a brake slip-controlled actuation of an ABS control valve of the brake system. The method further includes checking whether it follows that an activation of any ABS control valve that is allocated to a wheel of the vehicle is requested, and whether it follows that an ABS brake slip incident is present at at least a first wheel of the vehicle, and/or whether, based on the ABS control parameters, it follows that further ABS control valves, which are allocated at least to one second wheel of the vehicle, implement correctly a brake slip-controlled activation.

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 housing of brake device includes a first oil path, a second oil path that is adjacent to the first oil path in a first direction along an axial direction of the first oil path and has a larger cross-section orthogonal to the axial direction than the first oil path, a third oil path connected to the first oil path, and a fourth oil path connected to the second oil path. A throttle member of the brake device is anchored to the housing by being press-fitted into the first oil path. The third oil path connects the fourth oil path through the throttle. When the throttle member moves in the first direction by releasing the press-fitting, the third oil path connects the fourth oil path through a gap between an inner circumferential surface forming the second oil path and an outer circumferential surface of the throttle member.

A housing of brake device includes a first oil path, a second oil path that is adjacent to the first oil path in a first direction along an axial direction of the first oil path and has a larger cross-section orthogonal to the axial direction than the first oil path, a third oil path connected to the first oil path, and a fourth oil path connected to the second oil path. A throttle member of the brake device is anchored to the housing by being press-fitted into the first oil path. The third oil path connects the fourth oil path through the throttle. When the throttle member moves in the first direction by releasing the press-fitting, the third oil path connects the fourth oil path through a gap between an inner circumferential surface forming the second oil path and an outer circumferential surface of the throttle member.

An electrohydraulic valve system for controlling a braking system of a work machine includes a valve body forming a bore and a fluid channel, a valve spool disposed within the bore, and a first armature positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position. A spring is disposed within the bore, where the valve spool is biased to its first position by the spring. A first electromagnetic coil is operably controlled between an energized state and a de-energized state, and a lockout system is formed at least partially within the valve body. The lockout system includes a second armature, a second electromagnetic coil, and a lockout spring, where the second electromagnetic coil is operably controlled between an energized state and a de-energized independently of the first electromagnetic coil.

A brake system for an articulated vehicle is disclosed. The brake system includes a brake assembly coupled to a traction device, the brake assembly being configured to apply a brake-assembly pressure based on one of a hydro-mechanical pressure signal and an electro-mechanical pressure signal. A blocking valve is configured to block the hydro-mechanical pressure signal when closed. A brake controller, is configured to transmit an isolation signal configured to close the blocking valve and transmit an ABS control signal that is based on a commanded ABS brake pressure.

An electrohydraulic valve system for controlling a braking system of a work machine includes a valve body forming a bore and a fluid channel, and a valve spool disposed within the bore and in fluid communication with the fluid channel. The valve spool includes at least a first land and a second land. An armature is positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position. A spring is disposed within the bore and biases the valve spool to its first position. A first electromagnetic coil and a second electromagnetic coil are operably controlled between an energized state and a de-energized state. The spring biases the valve spool to its first position when at least one of the first and second electromagnetic coil is in its de-energized state.

An electrohydraulic valve system for controlling a braking system of a work machine includes a valve body forming a bore and a fluid channel, and a valve spool disposed within the bore and in fluid communication with the fluid channel. The valve spool includes at least a first land and a second land. An armature is positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position, and a spring is disposed within the bore for biasing the valve spool to its first position. A first electromagnetic coil and a second electromagnetic coil are arranged relative to one another and the armature for forming a magnetic field when energized, and a detent system is positioned within the valve body for exerting an axial force to the valve body or armature.

A brake system has a wheel brake and is operable under a non-failure normal braking mode and a manual push-through mode. The system includes a master cylinder operable by a brake pedal during a manual push-through mode to provide fluid flow at an output for actuating the wheel brake. A first source of pressurized fluid provides fluid pressure for actuating the wheel brake under a normal braking mode. A second source of pressurized fluid generates brake actuating pressure for actuating the wheel brake under the manual push-through mode.

A hydraulic braking system for a vehicle includes a master brake cylinder, a hydraulic unit and a plurality of wheel brakes, the hydraulic unit including at least one brake circuit for brake pressure modulation in the wheel brakes. A bistable solenoid valve is associated with at least one wheel brake, which valve is looped into the corresponding fluid channel, immediately upstream of the associated wheel brake, and in a de-energized open position enables brake pressure modulation in the associated wheel brake, and in a de-energized closed position seals a current brake pressure in the associated wheel brake, wherein a hydraulic force brought about by the sealed-in brake pressure acts in a seat-opening manner in the corresponding bistable solenoid valve.