Abstract: A pneumatic component includes a cylinder, a piston running in the cylinder, and a grooved ring. The grooved ring seals the piston from the cylinder, and has a static side and a dynamic side. The static side of the grooved ring has at least two concentric microlips.

Abstract: A parking brake of a brake system for a vehicle includes an anti-lock device, which, based on a signal that is dependent on the rotational speed of the vehicle engine, transmission, or drive shaft, prevents blocking or excess slippage of a wheel that can be decelerated by the parking brake.

Abstract: A compressed air supply assembly for operating a pneumatic assembly includes a compressed air supply; a compressed air connection to the pneumatic assembly; a purge connection to the environment; a pneumatic main line between the compressed air supply and the compressed air connection comprising an air dryer; a purge line between the compressed air connection and the purge connection; and a solenoid valve arrangement with a control valve to control a purge valve. The control valve is connected to a control valve connection in a pneumatic control line connected to a pressure control connection of the purge valve; and the purge valve is connected to a purge valve connection in the purge line. A pressure-maintaining device is connected to the pneumatic control line and maintains control pressure at the pressure control connection when the purge valve connection is open, independently of pressure in the purge line and/or the main line.

Abstract: A compressed air supply assembly for operating a pneumatic assembly includes a compressed air supply; a compressed air connection to the pneumatic assembly; a purge connection to the environment; a pneumatic main line between the compressed air supply and the compressed air connection comprising an air dryer; a purge line between the compressed air connection and the purge connection; and a solenoid valve arrangement with a control valve to control a purge valve. The control valve is connected to a control valve connection in a pneumatic control line connected to a pressure control connection of the purge valve, and the purge valve is connected to a purge valve connection in the purge line. A pressure-maintaining device is connected to the pneumatic control line and maintains control pressure at the pressure control connection when the purge valve connection is open, independently of pressure in the purge line and/or the main line.

Abstract: The invention relates to a sensor mounting (5) for a distance sensor (6), said sensor mounting (5) having at least the following: a fixing part (12) for attaching to a vehicle (1), and a receiving part (14) that is attached to the fixing part (12) in an adjustable manner in order to receive the distance sensor (6), said receiving part (14) being adjustable into at least two different angular positions on the fixing part (12).

Abstract: In a method and a device for controlling the stability of a vehicle, in particular a utility vehicle, an anti-tilt control process is carried out in which at least one lateral acceleration signal, one steering wheel angle signal and one vehicle speed signal are sensed and control signals for vehicle interventions are formed therefrom and output, and a yaw control process is carried out during which the steering wheel angle signal, the lateral acceleration signal and the vehicle speed signal are sensed, a yaw rate setpoint value signal and a yaw rate actual value signal are determined and compared with one another and a yaw control process is carried out during which control signals for vehicle interventions are formed and output.

Abstract: The invention relates to a door control system for vehicles, with a compressor (1), an air dryer (3), a door control valve (4) and at least one cylinder (2) which can be actuated by compressed air, and also relates to a method for actuating a cylinder (2) of a vehicle door, in which a piston (13) of the cylinder (2) can occupy a first functional position (O) and a second functional position (X). The air dryer (3), in drying mode, is exposed to throughflow of the air flowing into the cylinder (2) and in regeneration mode is exposed to throughflow by the air discharging from the cylinder (2). The cylinder (2) is pressurised only with compressed air from a compressed air accumulator (7).

Abstract: The invention relates to a method for controlling a compressed-air-controlled brake system of a utility vehicle (3, 4), wherein a monitoring sensor (S) monitors whether the means for securing or positioning a vehicle part of the utility vehicle (3, 4), a cargo (6) of the utility vehicle (3, 4) or a cargo carrier (7, 10) which accommodates a cargo (6) of the utility vehicle (3, 4), which are provided in order to ensure a safe driving state of the utility vehicle (3, 4), are present and wherein the brakes (B) of the utility vehicle (3, 4) are actuated automatically if the monitoring sensor (S) detects that the means for securing or positioning the vehicle part, the cargo (6) or the cargo carrier (7, 10), which are provided in order to ensure a safe driving state of the utility vehicle (3, 4), are not present. The invention also relates to a system composed of a brake system control device for such a brake system and a monitoring sensor as well as a brake system control device for this purpose. C.

Abstract: The invention relates to a vehicle (1), which has: an internal combustion engine (6), an output shaft (3), a transmission unit (13; 8, 12) provided between the internal combustion engine (6) and the output shaft (3) for setting different gear ratios and/or decoupling the internal combustion engine (6) from the output shaft (3), and a compressed-air system (5) having a compressor (16) arranged on an engine shaft (7) of the internal combustion engine (6) and a compressed-air control unit (18). According to the invention, the compressed-air control unit (18) outputs a requirement signal (S4) for a transmission setting.

Abstract: A compressor system for a compressed-air supply arrangement includes an adjustable throttle device arranged in the suction line of the compressor. The throttle device is adjustable between a fully open load position and an idle position with a predefined narrowed throttle cross section. The idle power of the compressor is reduced as a result of the reduction of the pressure level downstream of the throttle device without additional lines, filters or the like.

Abstract: A method for controlling the pressure in a compressed-air accumulator of a level-control system of a motor vehicle utilizing a pressure-control apparatus constructed and arranged to adjust the accumulator pressure according to a predetermined index pressure value. The index pressure value is automatically determined by a computing device based on the relative level and/or the load of the vehicle.

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: The invention relates to a monitoring system for monitoring the surrounding area, in particular the area behind motor vehicles and trailer vehicles having a plurality of distance sensors, which are arranged in a main plane and in at least one additional plane, for detecting objects or obstacles in the respective monitoring region (10?, 12?, 14?) which create the risk of a collision and/or limit the passage height and/or the passage width, and having a device (30), which evaluates the distance sensor signals, for ascertaining the current distance (actual value) of the motor vehicle from the detected object or obstacle and for comparing the actual value with a predefinable, vehicle-specific setpoint distance value and for outputting a warning signal if a predefinable difference value between the actual value and the setpoint value is not reached.

Abstract: A valve control unit, particularly for a pressure modulator of a commercial vehicle includes a valve control housing, solenoid valves, which are provided with solenoids and internal valve pieces inserted into the solenoids, and a pneumatic interface. The solenoids are accommodated inside the valve control housing. Pressure sensors for measuring pneumatic pressures are accommodated in or on the valve control unit, preferably on the top surface. Valve bores, into which the internal valve pieces are inserted, extend within the valve control housing. Air ducts extend between the pneumatic interface, the valve bores, and the pressure sensors, inside the valve control housing. The solenoids and pressure sensors are contacted with an electrical interface. The valve control housing can be a single piece.

Abstract: The description relates to a method and a motion sensor for detecting a vehicle movement with respect to a subsurface. The motion sensor comprises a light source unit (12) for emitting light of at least one wavelength onto the subsurface (1), at least one detector (22) for detecting light reflected by the subsurface, and an evaluation device (50) for detecting a change in the intensity of the detected reflected light over time.

Abstract: The description relates to a method and a device for controlling at least one driver assistance system (82, 84, 86, 88) of a vehicle (60). The method comprises the following steps: emitting light (11) of at least one wavelength onto a road surface (1a) under the vehicle (60), detecting light (21, 31) of the at least one wavelength reflected by the road surface (1a), acquiring at least one piece of information (100) on the nature of the road surface (1a) using the detected reflected light (21, 31) of the at least one wavelength, transmitting (200) the at least one piece of information on the nature of the road surface (1a) to the at least one driver assistance system (82, 84, 86, 88) and modifying (300) at least one parameter of the at least one driver assistance system (82, 84, 86, 88) such that the at least one driver assistance system reacts depending on the nature of the road surface (1a).

Abstract: A pump device and method minimizes the quantity of air in a vehicle brake system by reducing the volume of detrimental space. The device includes a piston movable between first and second end points, a line system that conducts fluid through the device, and a closing element, movable between an open position releasing the flow of the fluid and a closed position interrupting the fluid flow, that selectively releases the flow of the fluid through the device. The line system includes a through-line formed in the piston for conducting the fluid through the piston. By virtue of a section of the through-line that receives the closing element in the piston, a force is generated that is transmittable from the fluid to the closing element that moves the closing element in the direction of its closed position when the piston is moving in the direction of the first end point.

Abstract: A driver assistance system includes a speed detector, a preceding vehicle detector having at least one video camera and at least one distance sensor for detecting the distance from a preceding vehicle, a device for determining the speed of the preceding vehicle, and an electronic control unit equipped to trigger an autonomous deceleration of the vehicle with the presence of predetermined brake trigger driving data and to terminate the autonomous deceleration with the presence of predetermined brake abortion driving data. The control unit effects: redundant detection of preceding vehicle driving data, and non-redundant detection of preceding vehicle driving data if a redundant detection is not possible. The non-redundantly detected preceding vehicle driving data is compared to preceding vehicle driving data redundantly detected within a predetermined time, and the non-redundantly detected data is used to control the autonomous deceleration if it corresponds to the redundantly detected data.

Abstract: A pneumatic starter device for an internal combustion engine includes a cylinder-piston assembly, which can be operated either as a compressor or as a starter motor and which is drive-connected to the internal combustion engine. A pressure accumulator and a valve arrangement are associated with this assembly. The valve arrangement, which is between the assembly and the pressure accumulator, can be activated by a control unit and can be switched between a compressor mode and a starter mode. Before the cylinder-piston assembly is started up, it is set to a crank angle position in a range of positions that produce maximum output torque.