Abstract: A parking brake for a commercial vehicle equipped with an air-operated service brake is configured in such a way that the actuating energy for the brake is reduced in comparison to a configuration with a spring brake cylinder, while the installation space in the wheel area is minimized. Primary functional parts of the parking brake include an inner race and an outer race, which delimit an annular gap. Displaceable tapered-roller bearings are located in the annular gap. To adopt a release position in opposition to the action of a compression spring, the tapered roller bearings are disengaged from the conical surfaces of the inner race and the outer race.

Abstract: An electronic vehicle service braking system having at least one braking cylinder and a pressure control module with a control chamber and a working chamber. The working chamber is connected to an air supply via a supply line, the control chamber is connected to the air supply via a connecting line and an inlet valve and to the atmosphere via an outlet valve. The control chamber is also connected to a back-up braking system via a back-up line and a back-up valve, and a control system is provided for controlling at least the inlet valve and the back-up valve. The control system controls the valves such that the back-up valve is opened together with the inlet valve, enabling air to flow into the control chamber when an ABS signal for a rise in pressure follows a drop in pressure.

Abstract: A utility vehicle having several electric devices is described. The vehicle includes an electric steering device and/or an electric braking device, which are controlled by at least one electronic control device, in addition to a pedal unit having pedals, such as a gas pedal, a brake pedal and/or a clutch pedal, which are mounted on a pedal support. The at least one control device and the pedal unit may be incorporated in order to form an integrated component or module.

Abstract: A method and system for automatic braking is described. A service brake which can be operated electrically with a compressed air pressure and a parking brake which can be operated electrically are provided. When the vehicle stops due to the service brake being applied, the service brake is released and the parking brake is applied as a function of a release criterion. The release criterion includes the parking brake not being applicable manually because of a defect, and the operation of a control element for application of the parking brake.

Abstract: The invention relates to a pressure medium-actuated brake system of a tractor-trailer combination comprising at least one first brake circuit and one second brake circuit. The inventive brake system contains a multiple-circuit braking power sensor, which is connected to a first compressed-air reservoir for the first brake circuit and to a second compressed-air reservoir for the second brake circuit. The brake system also contains an electronic controlling and regulating unit, a control valve device and a tractor protection valve, which can be brought into connection with at least one compressed-air reservoir and via which a brake pressure for a brake system of the trailer can be controlled. The invention provides that at least the multiple-circuit braking power sensor and the control device are placed in immediate proximity to one another and are combined to form a modular unit.

Abstract: An electropneumatic central unit for a commercial vehicle is made up of modules with electrical and/or pneumatic components. The individual modules are arranged in module housings detachably connected to each other in a defined position, on which standard pneumatic connectors and electrical connectors are arranged such that, on connection of the module housings, corresponding connectors, arranged on opposing connection surfaces of the module housings, form direct mutual electrical and pneumatic connections.

Abstract: A clamp device inserted between two parts can prevent a relative movement between a brake disc and a brake caliper of a vehicle brake. The device includes two plates, with adjustable separation by way of at least two rollers running against each other and rolling on roller surfaces on facing inner sides of the plates. When the rollers are located in the region of a first section of the roller surfaces, the separation of the plates for bringing about clamping in an extended state is greater than the separation adopted by the plates to generate clamping in a withdrawn state when the rollers are located in the region of a second section of the roller surfaces. The position of the rollers relative to the roller surfaces may be altered by an actuator.

Abstract: A utility vehicle having several electric devices is described. The vehicle includes an electric steering device and/or an electric braking device, which are controlled by at least one electronic control device, in addition to a pedal unit having pedals, such as a gas pedal, a brake pedal and/or a clutch pedal, which are mounted on a pedal support. The at least one control device and the pedal unit may be incorporated in order to form an integrated component or module.

Abstract: A parking brake for a commercial vehicle equipped with an air-operated service brake is configured in such a way that the actuating energy for the brake is reduced in comparison to a configuration with a spring brake cylinder, while the installation space in the wheel area is minimized. Primary functional parts of the parking brake include an inner race and an outer race, which delimit an annular gap. Displaceable tapered-roller bearings are located in the annular gap. To adopt a release position in opposition to the action of a compression spring, the tapered roller bearings are disengaged from the conical surfaces of the inner race and the outer race.

Abstract: The invention relates to a motor vehicle comprising a compressed-air braking system. Said vehicle has two braking cylinders, which can be impinged by compressed-air from a compressed-air reserve by means of a manually actuated brake valve. The braking cylinders have ABS pressure-control valves, which can be selectively impinged by compressed air from the compressed-air reserve, using a slip control valve. A stability sensor detects a motor vehicle position and a control device selectively supplies the slip control valve and the ABS pressure-control valves with compressed air, in accordance with the signals of the stability sensor.

Abstract: The invention relates to a pressure medium-actuated brake system of a tractor-trailer combination comprising at least one first brake circuit and one second brake circuit. The inventive brake system contains a multiple-circuit braking power sensor, which is connected to a first compressed-air reservoir for the first brake circuit and to a second compressed-air reservoir for the second brake circuit. The brake system also contains an electronic controlling and regulating unit, a control valve device and a tractor protection valve, which can be brought into connection with at least one compressed-air reservoir and via which a brake pressure for a brake system of the trailer can be controlled. The invention provides that at least the multiple-circuit braking power sensor and the control device are placed in immediate proximity to one another and are combined to form a modular unit.

Abstract: In a system for controlling a brake valve, the supply voltage available for controlling the electromagnet of the brake valve is continually measured during operation and the effective value of the voltage present at the coil of the electromagnet is varied by varying the duty factor of the pulse times according to the supply voltage supplied at the time.

Abstract: The invention relates to a braking system for a vehicle, comprising an electronic service braking system having at least one braking cylinder and a pressure control module which is associated with the braking cylinder, said pressure control module comprising a control chamber and a working chamber. The invention is characterized in that the working chamber is connected to an air supply by means of a supply line; the control chamber is connected to the air supply by means of a connecting line and an inlet valve; the control chamber is connected to the atmosphere by means of an outlet valve; the control chamber is also connected to a back-up braking system by means of a back-up line and a back-up valve; and a control system is provided for controlling at least the inlet valve and the back-up valve.

Abstract: The invention relates to a motor vehicle comprising a compressed-air braking system. Said vehicle has two braking cylinders, which can be impinged by compressed-air from a compressed-air reserve by means of a manually actuated brake valve. The braking cylinders have ABS pressure-control valves, which can be selectively impinged by compressed air from the compressed-air reserve, using a slip control valve. A stability sensor detects a motor vehicle position and a control device selectively supplies the slip control valve and the ABS pressure-control valves with compressed air, in accordance with the signals of the stability sensor.

Abstract: In a system for controlling a brake valve, the supply voltage available for controlling the electromagnet of the brake valve is continually measured during operation and the effective value of the voltage present at the coil of the electromagnet is varied by varying the duty factor of the pulse times according to the supply voltage supplied at the time.