Abstract: A rear spoiler device for a vehicle that has a rear door includes an air guiding element configured to attach to a lateral rear zone of the vehicle. The air guiding element can be pivoted between a travel position for contour extension and aerodynamic air guidance with the rear door of the vehicle closed, and a position in which it is hinged inwards with the rear door open. To this end, the air guiding element can be received in a hinge of the rear door, and the rear spoiler device has a spring device that presses the air guiding element in the travel position against a counter-stop formed on the hinge, preferably, on a hinge plate fastened to the rear door.

Abstract: A compressed-air compressor for producing compressed air for a compressed-air system of a vehicle includes a cylinder and a piston. The piston is arranged in the cylinder and divides the interior space of the cylinder into a compression chamber, which can be connected to the compressed-air system of the vehicle for the purpose of conveying compressed air, and a neutral chamber. The neutral chamber is charged with an auxiliary pressure such that the pressure in the neutral chamber is temporally on average higher than atmospheric pressure. The compressed air production using the piston/cylinder-type compressed-air compressor is improved such that the maximum value of the torque to be imparted for driving the compressor is reduced.

Abstract: A compressed air supply device for operating a pneumatic system, such as a vehicle pneumatic suspension system, comprises a compressed air supply, a first pneumatic connection between the compressed air supply and the pneumatic system, the first pneumatic connection having an air desiccator, a throttle device, and at least one controllable isolating valve, and a second pneumatic connection pneumatically connected to the first pneumatic connection and to a vent connection leading to the surroundings, the second pneumatic connection having at least one controllable vent valve. According to one embodiment, the controllable isolating valve and the throttle device are arranged in series in the first pneumatic connection such that the controllable isolating valve can be switched into an open state when in a through-flow mode, and into a closed state when in an isolating mode.

Abstract: In a device and method for controlling the driving dynamics of a vehicle having a driver's cab spring mounted with respect to the vehicle frame, the yaw rate and deflection of the driver's cab are detected. A yaw rate sensor is arranged in the driver's cab, and the yaw rate of the vehicle frame is estimated or calculated from the yaw rate and deflection of the driver's cab. If the difference between the estimated or calculated yaw rate of the vehicle frame and a desired yaw rate exceeds a limit value, the brake system and/or the drive are actuated.

Abstract: An electronic brake control device for a vehicle includes one or more output connections for activating one or more vehicle components that are not part of the vehicle brake system. The electronic brake control device includes a memory which has at least one memory location for storing operational data of a vehicle component that is connected to a respective output connection. The electronic brake control device is configured to detect data characterizing the operation of the connected vehicle component, collect the data as an overall operating value of the vehicle component, and store the data in the assigned memory location.

Abstract: A piston air compressor having a suction chamber and a connection chamber separated from the suction chamber. An air channel is provided from the connection chamber to the suction chamber.

Abstract: A braking system for a vehicle, particularly a commercial vehicle, includes an operating brake device for providing an operating brake function for braking the vehicle, and a parking brake device for providing a parking brake function independently of the operating brake system. If one of the two braking devices partially or completely fails, the vehicle can be braked automatically by means of the other braking device.

Abstract: For adjusting the supporting load of a central axle trailer equipped with at least two axles having pneumatic suspensions and a pneumatic suspension system that includes separate pneumatic suspension circuits on the axles with pneumatic suspensions, a method and electronic control device are provided by which the respective quantities of air are separately adjustable. When the current supporting load exceeds a permitted supporting load range, the current supporting load is reduced by separate alteration of the quantity of air in at least one of the pneumatic suspension circuits; and, when the current supporting load is below the permitted supporting load range, the current supporting load is increased by separate alteration of the quantity of air in at least one of the pneumatic suspension circuits.

Abstract: A suspension system includes spring bellows that are associated with pneumatic springs of vehicle axles, are connectable by lines having level control valves to a main pressure line, and can be shut off with respect thereto. The main line is connectable by valves alternately to a compressed air source and a sink, and can be shut of with respect thereto. To set different air mass flow rates when air is supplied to/removed from the bellows, the bellows of the springs at least on a vehicle axle or side can be connected to the main line in parallel with the connecting lines, at least by further connecting lines having further level control valves, and can be shut off with respect thereto. The further valves have nozzle cross-sectional surfaces the same size as the other level control valves. Chokes are downstream of the further valves in the ventilation direction, the cross-sectional surfaces thereof being smaller than the nozzle cross-sectional surfaces of the further valves.

Abstract: A pneumatic wheel brake for a vehicle includes a brake lever operable by a compressed air cylinder, and a brake application device operable by the lever. Employing the brake application device, a first brake element can be pressed against a second when the lever is operated. The wheel brake also includes an actuating device, which can be motor driven, which force can be applied to parts of the brake application device, at least when the lever is not operated, to press the first brake element against the second. The wheel brake also has a spring accumulator element arranged outside the compressed air cylinder. Force can be applied to the spring accumulator element by the actuating device; and force can be applied to parts of the brake application device by the spring accumulator element, at least when the lever is not operated. Thereby, the first brake element can be pressed against the second.

Abstract: A device for acquiring and processing sensor measured values and/or for controlling actuators has a base housing, sensors and/or actuators attached to the base housing, a cover that can be connected to the base housing to cover the sensors and/or actuators, and a circuit board with control electronics. To mount the circuit board easily and effect secure contact of the sensors therewith, the circuit board is securely connected to the inner side of the cover using press-fit connectors, the circuit board has electrically active first contact faces on its side remote from the cover, the sensors and/or actuators have electrically active second contact faces on their sides facing the cover, and the second contact faces of the sensors and/or actuators are connected to the first contact faces via electrically conductive contact springs.

Abstract: A method for carrying out closed-loop or open-loop control of a vehicle brake system includes, when a braking request signal is present, setting brake pressures at brakes on axles and/or wheels of the vehicle by distributing brake pressure. Before braking is initiated on the basis of current, received or detected data relating to friction conditions or grip conditions between the roadway surface and tire surfaces of the vehicle, a determination is made as to whether, or to what extent, the distribution of brake pressure occurs in a brake wear pressure distribution or in a frictional engagement pressure distribution for the subsequent initiation of the braking process.

Abstract: A piston-cylinder assembly, in particular for pneumatic, hydraulic or mechatronic systems, includes a cylinder housing and a piston. The piston is coupled to a piston rod and disposed in the cylinder housing such that it can move along a longitudinal axis. A measuring device for detecting piston or piston rod position is provided inside the cylinder housing.

Abstract: To lower the fuel consumption of a vehicle having a pneumatic brake system during operation of the vehicle by utilizing existing components to their full capacity, thus contributing to energy conservation, a method and device for controlling pressure is provided, wherein modes of compressed air expansion are provided. In a second compressed-air expansion mode, compressed air is channeled from a second compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor. In a third compressed-air expansion mode, compressed air is channeled from a third compressed-air storage container to the compression chamber of the air compressor during expansion phases of the air compressor.

Abstract: A rear spoiler device for a vehicle, such as a utility vehicle or a trailer, includes at least one adjustable air guiding element for aerodynamically guiding air and extending the contour of the lateral region of the rear of the vehicle. The guide element is adjustable between a travel position, in which it extends rearwards in a lateral region of the rear for aerodynamically guiding air and extending the contour, and a stowed position. The air guiding element is spring pre-loaded into the extended travel position and is adjusted into the stowed position by pressing the guide element from the rear side counter against the spring pre-load.

Abstract: A brake cylinder having a parking brake function includes a cylinder housing, a piston, and a piston tube for actuating a brake. A threaded bolt protruding into the piston tube and fixed to the cylinder housing by its upper end is used to effect the parking brake function. A clamping nut displaceable by means of a forked, axially rotatable driving element extends over the threaded bolt. The driving element is rotated with the clamping nut while the cylinder is subjected to pressure by the parking brake until the clamping nut is supported against the piston in the parking position of the piston. The piston is mechanically locked when the cylinder housing is not subjected to pressure.

Abstract: A stroke piston for a stroke piston compressor for generating compressed air for a vehicle, such as a commercial vehicle, includes a piston body with a piston floor, a piston skirt with piston skirt walls and pin hubs for receiving a piston pin, and at least two piston rings, which can be inserted into circumferential ring grooves of the piston body. Ridges of the piston body are provided between each two ring grooves and between the piston floor and the first ring groove arranged closest to the piston floor and the ring groove arranged closest to the piston skirt facing away from the other ring groove or grooves. At least one of the ridges is recessed at least over a partial section of its ridge height, which is measured parallel to the axis of the piston body, with at least one recess relative to the diameter of the piston body.

Abstract: A brake includes a brake shoe, an actuating element for pressing the brake shoe against a brake disc, and at least one lever disposed such that it increases the braking force applied by the brake shoe to the brake disc by deflecting a tangential force acting on the brake shoe during braking. The actuating element comprises at least one brake disc side part, an actuator side part, and a coupling part disposed between the brake disc side part and the actuator side part, wherein the coupling part can be pivoted relative to the brake disc side part and/or the actuator side part.

Abstract: A pressure control device for a vehicle comprises an electronic control unit and a valve device for controllably connecting a compression chamber of the vehicle's air compressor to the vehicle's compressed-air supply and storage system. The pressure control device is configured to (i) connect the compression chamber to the compressed-air supply and storage system in a compressed-air production mode to convey compressed air from the compression chamber into the compressed-air supply and storage system, (ii) connect the compression chamber to the compressed-air supply and storage system in a compressed-air expansion mode to convey compressed air from the compressed-air supply and storage system into the compression chamber, and (iii) switch from the compressed-air production mode to the compressed-air expansion mode and vice-versa by electrically actuating one or more electrically operable valves of the valve device.

Abstract: A control unit housing has connector pins arranged therein. Each pin has a first contact end directed to the housing interior for a press-fit connection to a circuit board insertable therein, and a second contact end directed out of the housing for connecting an electrical plug connector or the like. The housing is designed as a header that is open on one side and has an access opening for inserting the circuit board. The access opening can be closed by a cover after mounting the circuit board. The connector pins are substantially right-angled pins arranged in the region of a side wall of the housing. The pins are anchored in the housing by the second contact ends running approximately at right angles to the first contact ends, such that the mounting forces acting on the first contact ends during press-fit connecting are received by the housing.