Abstract: A spoiler assembly for a vehicle includes a first air-guiding element adjustable between a basic position and an activated driving position by a first adjustment device (6) and a second air-guiding element adjustable between a basic position and an activated driving position by a second adjustment device (7). In a first partial adjustment during the adjustment from the basic positon into the driving position, the first air-guiding element is adjustable and the second air-guiding element is not adjustable. In a second partial adjustment following the first partial adjustment, the second air-guiding element, preferably the two air-guiding elements, is or are adjustable. second adjustment device (7) is activated via a first position-switching device (15) switchable between an open position for actuating the second adjustment device (7) and a blocking position depending on an adjustment position of the first air-guiding element.

Abstract: An electronic brake system for a trailer with a pneumatic brake installation is disclosed. The electronic brake system comprises a brake controller (18) in the trailer (11) connected to a first communication device (20) that is part of a first communication channel (23) for wirelessly receiving brake signals of a towing vehicle (10). The electronic brake system also comprises a second communication channel for receiving brake signals of the towing vehicle. The brake controller (18) converts the brake signals of the first communication channel (23) into brake commands for the pneumatic brake installation only if brake signals arrive via the second communication channel (24) at the same time or within a defined time window. The time window begins as soon as a brake signal arrives on one of the first and second communication channels (23, 24).

Abstract: A spoiler assembly for a vehicle includes a first air-guiding element adjustable between a basic position and an activated driving position by a first adjustment device (6) and a second air-guiding element adjustable between a basic position and an activated driving position by a second adjustment device (7). In a first partial adjustment during the adjustment from the basic positon into the driving position, the first air-guiding element is adjustable and the second air-guiding element is not adjustable. In a second partial adjustment following the first partial adjustment, the second air-guiding element, preferably the two air-guiding elements, is or are adjustable. second adjustment device (7) is activated via a first position-switching device (15) switchable between an open position for actuating the second adjustment device (7) and a blocking position depending on an adjustment position of the first air-guiding element.

Abstract: An electronic brake system for a trailer with a pneumatic brake installation is disclosed. The electronic brake system comprises a brake controller (18) in the trailer (11) connected to a first communication device (20) that is part of a first communication channel (23) for wirelessly receiving brake signals of a towing vehicle (10). The electronic brake system also comprises a second communication channel for receiving brake signals of the towing vehicle. The brake controller (18) converts the brake signals of the first communication channel (23) into brake commands for the pneumatic brake installation only if brake signals arrive via the second communication channel (24) at the same time or within a defined time window. The time window begins as soon as a brake signal arrives on one of the first and second communication channels (23, 24).

Abstract: A hydraulic device is furnished for an automatic connection of the pressure means source, either preferably to the primary user or to the secondary user depending on the pressure in the circuit of the primary user. A switching valve can be actuated by way of a precontrol pilot valve for the generation of the connections. An additional restoring second part compression spring (33) with adjustable pretension acts on the precontrol pilot valve (19, 20, 21, 22, 27). A fluid-loadable auxiliary piston (32) serves for a switching-pressure support. The hydraulic device is suitable for applications in hydraulic circuits exhibiting different transport priorities to different ports.