According to the invention, two redundant parking brake control circuits (13; 18) are provided. In the first parking brake control circuit (13), energy is supplied via the vehicle battery or an alternator. In contrast, as a second electrical power supply (19) in the second parking brake control…
The invention relates to a compressed air system (1) for a utility vehicle, which has a chassis air suspension system (2) as well as a cabin air suspension system (3). The control or regulation of both the chassis air suspension system (2) and the cabin air suspension system (3) is carried out by a…
The invention relates to a raise-lower valve unit (1) for an air suspension system of a commercial vehicle. In such raise-lower valve units (1), locking of a RAISE and/or LOWER position is accomplished via a locking or locking device (1), in which a locking or locking element (51) engages in a…
The invention relates to an EPI module (4). According to the invention, a position detection device (15) for a distance (17) is integrated into the EPI module (4). Optionally, a storage device (18) for electrical power supply, a control unit (21), at least one pressure sensor (31, 32) and/or at…
The invention relates to a cabin air suspension valve unit (4). Whereas such cabin air suspension valve units according to the prior art have mechanical level control, the invention proposes that the cabin air suspension valve unit (4) has electrically controlled solenoid valves (17, 25a, 25b, 48)…
The invention relates to a compressed air treatment device (1) for a commercial vehicle. A valve (24) is used in this device, by means of which, on the one hand, a regulation of the compressor (6) takes place and, on the other hand, a control of a vent valve (36) is effected. According to the…
The compressed air system (1) has an emergency brake valve (19) which is applied with a pressure of a container (4) depending on the pressure at a terminal (141). The terminal is connected with a coupling head (2). A shuttle valve is provided with an input which is connected with another terminal…
The device (5) has an emergency brake valve (19) controlling pressurization of a service brake based on pressure at a terminal (21) that is connected with a coupling head (2). A spring accumulator valve controls the pressurization of a spring brake based on pressure at another terminal (45) that is…
The valve device has a trailer brake valve for brake assembly and a trailer associated valve such as level control valve or lifting axle valve for an air suspension system. The trailer associated valve of air suspension system is integrated into device main housing. An electronic control unit (72)…
The cartridge (2) has a support element (44) that supports a pretension element (37) for a drying agent over springs (38a, 38b). The support element is freely accessible from outside. The pretension element is arranged in a cover area. The support element is supported at a base wall (20) over a…
The valve (1) has a housing (2) and a fastening device (3) for screwing the housing with a carrier element (4). The fastening device has two fastening units (5,6) spaced from each other for fastening the housing at the carrier element. One of the fastening units is screwable and the other fastening…
The device (27) has a parking valve (30) comprising an actuator (34) through which a valve body (33) of the parking valve is manually movable into a venting position. A change of the operating condition of the parking brake valve device causes automatic increase in pressure at a control terminal…
The vehicle has a hydraulic brake system, and a pneumatic brake system for a trailer coupled with the vehicle. A pneumatic coupling head (1) transfers pressurized air between the vehicle and the trailer. A valve (13) is integrated into the coupling head and inserted between a coupling head line (5)…
The pneumatic valve (1) comprises a valve structure (3) whose position is manually adjustable by an actuating knob (8). The operating knob is formed of a base structure (18) and a cover structure (19). The base structure is provided with radially elastically deformable catch or stop element (24)…
The pneumatic trailer brake assembly has a interface that includes supply coupling head for transmitting supply pressure from towing vehicle to trailer, and brake coupling head for transmitting brake control pressure from towing vehicle to the trailer. Another interface (1) is provided with a…
The cartridge (2) has a support element (44) that supports a pretension element (37) for a drying agent over springs (38a, 38b). The support element is freely accessible from outside. The pretension element is arranged in a cover area. The support element is supported at a base wall (20) over a…
The air conditioning unit (1) has a trailer control valve (53) which is integrated with a main portion. A supply terminal (52) of trailer control valve, is integrated with an emergency brake valve for reducing pressure at a terminal (22) for a coupling head stock (23). The pneumatic brake actuating…
The device (12) has a control unit for controlling functions of the air treating device. An input terminal (36) provides a brake signal that is correlated with electric towing vehicle brake signals (5, 6). Two output terminals (46, 47) are connected with a trailer, where the brake signal generated…
The assembly (7) e.g. modular valve unit (9), has a supply port (15) and a spring-loaded port (28), where an emergency braking- and/or uncoupling function is integrated in the assembly and causes automatic aeration of the spring-loaded port when the supply port is not under pressure. A valve body…
The valve unit (1) has a heating device (23) which is provided with a heating element (21) arranged in the recess (20) of housing (19). A heating mat is provided against a contact surface of housing. The heating element is provided between the operating piston (13) and control piston (8). The…
The level-regulating valve unit (8) has a supply terminal (6,7) and an electrical connector (17,18), through which a control signal is transmitted for a purely electrical level control, where an electrically controlled or pilot operated valve and integrated distributor are provided. A pneumatic…
The air-suspension system (1) has a lift-lower valve assembly (3) having lifting-lowering valves (7a,7b), and a level control valve assembly (4) comprising electro-pneumatic servo valves (38a,38b). The lifting-lowering valves and electro-pneumatic servo valves are arranged in parallel line branches…
The system (1) has a level control valve unit (4) and a manually actuatable lifting and lowering valve unit (5) interposed in pneumatic series connection between pressurized air sources (2) i.e. container (3), and pneumatic spring bellows (6a, 6b). The lifting lowering valve unit is switched back…
The pneumatic valve (1) has a valve slide portion (31) that is displaced in axial direction of recess (9) formed in housing (3). The outer surface (34) of valve slide portion is sealed corresponding to axial positions of valve slide portion adjacent to valve chambers (39,40) by using a bypass…
The head (1) has a permanently opened-bypass (51) for bypassing a filter element (12) i.e. filter insert. Compressed air flows through the filter element. A guiding surface (18) guides the air in guiding direction (22) toward the filter element. The bypass comprises a bypass opening arranged such…
The method involves automatically introducing a utility vehicle (1) to a level adapted to a ramp (10) during docking operation on the ramp. An absolute current position of the utility vehicle is detected through a sensor (37), whose output signal is used for automatic introduction and/or partial…
The cartridge (13) has an indication unit (40) for automatically presenting information concerning to cartridge types e.g. air dryer type and air conditioning type, in a vehicle. The indication unit is arranged in a recess and/or behind a projection, and a material of a component of the cartridge…
The parking valve (14) has an output terminal (34) for compressed air pressurization of a spring-loaded parking brake (16). A supply port (35) is connected to an output terminal in a ventilation position. A pressure safety valve (31) is interposed in the ventilation position between the supply port…
The device (1) has a compressor (2) and two air-drying cartridges (15, 16) that are arranged in two parallel spacer branches (11, 12), where regeneration operation of one of the air-drying cartridges is controlled independent of a supply operation of the other air-drying cartridge. Outgoing lines…
The compressed air system (1) has a magnet valve (52), which is provided to control the regeneration and which is connected with a control port (55,56) of a circle protection valve (9,10). The circle protection valve is arranged in a supply line to a load circuit that is assigned to an operating…