A bistable solenoid valve for a hydraulic brake system has a guide sleeve in which an upper immovable pole core is fixedly arranged and a closing element is displaceably arranged. The closing element is forced into a valve seat during a closing movement and lifts off from the valve seat during an opening movement, and is fixedly connected to a magnet assembly. An actuation of the movement of the closing element is performed by the magnet assembly via a coil positioned around and substantially surrounding the guide sleeve. A lower immovable pole core is fixedly arranged in the guide sleeve and the magnet assembly is positioned between the lower and the upper pole core.

The invention relates to a hydropneumatic valve for a vehicle train, comprising a hydraulic module, a pneumatic module and a mechatronic module, wherein the mechatronic module allows the pneumatic module to be activated independently of the hydraulic module.

A method for operating a pressure control device in a vehicle, in particular in a motor vehicle, wherein current is supplied by an energy source of the vehicle for operating the pressure control device, as a result of which the pressure control device carries out at least one pressure control function, for which at least two actuators of the pressure control device are actuated, wherein at least one current required at maximum for actuating the actuator is determined for each actuator and current budget management for actuating the actuators and/or for carrying out the pressure control functions is performed by the determined currents required at maximum. In addition, the invention relates to a pressure control device for carrying out the method.

An electro-pneumatic vehicle braking system including a control line, a modulator valve for controlling the supply of pressurised fluid to at least one brake actuator, a primary valve assembly and a secondary valve assembly, the primary valve assembly and the secondary valve assembly each being fluidly communicable with a source of pressurised fluid, and each of the primary and secondary valve assemblies being fluidly communicable with a control valve assembly, the control valve assembly being configurable in a first configuration to enable fluid communication between the primary valve assembly and the modulator valve, to provide a pneumatic control signal to the modulator valve, in a second configuration to enable fluid communication between the secondary valve assembly and the modulator valve, to provide a pneumatic control signal to the modulator valve, and in a third configuration in which fluid communication between either of the primary and secondary valve assemblies and the modulator valve is prevented and fluid communication between the control line and the modulator valve is enabled, to provide a pneumatic control signal to the modulator valve.

A guide sleeve for guiding a collar of a relay valve for an electropneumatic modulator for a brake system for a vehicle, includes: a guide section configured to be couple-able to a counterpart guide section of the collar of the relay valve so as to allow guidance of the collar along the guide section; and a holding section configured to fasten the guide sleeve in a positively locking manner in a housing of the relay valve. Also described are a related guide sleeve device, and a relay valve, and a related method.

An emergency brake device for a rail vehicle includes a compressed-air-brake system, wherein a braking process can be initiated by lowering the air pressure in a main air conduit and which includes an exclusively electric connection to a passenger emergency brake.

A valve arrangement for use in a parking brake system of a commercial vehicle or trailer, includes a differential piston having a first section and a second section, wherein the second section has a smaller diameter compared to the first section, and wherein there is a fluidic connection between the first section and the second section. The arrangement includes a housing with a bore, in which the differential piston is adapted to move. The bore has at least two sections, wherein the first section corresponds to the diameter of the first section of the differential piston, and the second section corresponds to the diameter of the second section of the differential piston, and wherein a step is formed between the first section and second section of the bore. A first passage and a second passage are arranged and axially spaced in the bore, and a third passage is arranged in or next to the second section of the bore. When the differential piston is in a first end position, the second section of the differential piston rests against the step, and a connection of the first passage and the second passage within the bore is provided. When the differential piston is in a second end position, a connection of the first passage and the second passage within the bore is blocked.

A brake system for a motor vehicle having hydraulically actuatable wheel brakes. Each wheel an electrically actuatable inlet valve and electrically actuatable outlet valve for setting wheel-specific brake pressures. A first electrically controllable pressure provision device is connected to a brake supply line to which the wheel brakes are connected. A second electrically controllable pressure provision device is connected to the brake supply line. A first electrical device activates the first pressure provision device. A second electrical device activates the second pressure provision device. Electrically independent first and second electrical partitions are provided. The first pressure provision device and the first electrical device are assigned to the first electrical partition and the second pressure provision device, the second electrical device and the inlet and outlet valves are assigned to the second electrical partition. The inlet and outlet valves are activated by the second electrical device.

A pipe bracket for a brake distributor valve for a vehicle includes a pipe bracket body including a main portion mounting face to receive the main portion of the distributor valve, a main-line portion mounting face to receive the main-line portion of the distributor valve, and an attachment face configured to secure the pipe bracket to a vehicle. The main portion mounting face defines a signal port in fluid communication with the signal passageway of the main portion. The main-line portion mounting face defines a signal port in fluid communication with the signal passageway of the main-line portion.

A parking brake assembly for an electronically controllable pneumatic braking system for a vehicle includes a parking brake unit having a supply connection to receive a supply pressure, a brake request connection to receive a parking brake request, and a parking brake pressure connection to provide a parking brake pressure. The parking brake assembly further includes a first ABS valve unit for a first channel and a second ABS valve unit for a second channel. The first ABS valve unit is configured to provide a pressure for a first spring-loaded brake cylinder at the first channel and to admit air to the first channel, in stages. The second ABS valve unit is configured to provide a second brake pressure for at least one second spring-loaded brake cylinder at the second channel and to admit air to the second channel, in stages.