Abstract: A solenoid-valve unit for an electropneumatic controller, especially a pilot-control unit of an electropneumatic pressure modulator of a vehicle, includes a solenoid-valve unit having a valve-housing bottom with compressed-air bores, and solenoid valves having solenoids and displaceable magnet armatures. The solenoids are disposed outside of the valve-housing bottom. At least one pressure sensor for measuring pneumatic pressure in a compressed-air bore of the valve-housing bottom is placed in or on the valve-housing bottom. Electric leads to the solenoids and to the pressure sensor are routed to a common electrical interface.

Abstract: The invention relates to a method for preventing a vehicle, in particular a commercial vehicle, from rolling away, wherein the vehicle is equipped with a compressed air treatment unit (APU) and at least one associated pressure sensor for detecting at least one pressure in a brake circuit, in particular with an electronic compressed air treatment unit (E-APU), and a self-braking system (for example ASR, ESP, FDR, EBS). The invention further relates to a computer program product, which carries out such a method. Furthermore, the invention relates to an electronic compressed air treatment unit (E-APU) and to a self-braking system (ASR, ESP, FDR, EBS).

Abstract: An electronic compressed air system for vehicles includes a compressed air supply part having a compressor, a compressed air consumer part having load circuits forming an air-suspension circuit, and service-brake circuits having reservoirs. The load circuits are supplied with compressed air via solenoid valves. The pressure in the load circuits is monitored by pressure sensors whose signals are evaluated by an ECU that controls the solenoid valves. The solenoid valve of the air-suspension circuit does not include reservoirs and is closed in the de-energized normal state. The solenoid valves of other load circuits, especially of the service-brake circuits are open in the de-energized normal state. With a pressure demand of the air-suspension circuit, the associated solenoid valve is switched by the ECU to open position to establish communication with the compressed air supply part and/or with the service-brake circuits or with the reservoirs thereof, to refill the air-suspension circuit.

Abstract: A sound damper for compressed air systems of vehicles includes a housing, an insulator and at least one web. The housing has an air inlet and an air outlet. The insulator is located in the housing, and the web is located in the housing such that it protrudes at least partially into the insulator. Air that flows through the housing from the air inlet to the air outlet is conducted by the web into the insulator.

Abstract: An electrically controlled brake system for a tractor is provided that is equipped with an anti-jackknifing brake that can be actuated by means of a manual operating element and that acts only on the brakes of a trailer coupled to the tractor. The operating element is an electrical element which generates an electrical signal to control a valve device by means of which the braking force of the anti-jackknifing brake can be increased.

Abstract: A brake system for a vehicle includes a parking brake with an air-quantity-boosting-valve device for aerating and deaerating at least one spring brake cylinder of the parking brake, at least one electrically actuatable control valve for controlling the air-quantity-boosting-valve device, an electrical control device electrically coupled to the electrically actuatable control valve for controlling the electrically actuatable control valve, and an electrical actuating device coupled to the control device for actuating the parking brake. In order to be able to resort to available series-produced components, the air-quantity-boosting-valve device, the control valve, the electrical control device and the actuating device are, in each case, embodied as autonomous components arranged spatially separate from one another.

Abstract: A driver assistance system includes a sensor for sensing the speed of a first vehicle equipped with the system, a sensor for detecting a vehicle traveling ahead, a sensor for determining the speed of the vehicle ahead, at least one driving-data sensor for sensing driving data characteristics, and an electronic controller programmed to trigger autonomous braking of the first vehicle when predetermined brake-trigger driving data exist, and to end the autonomous braking when predetermined driving data for terminating braking exist. In effecting termination of autonomous braking, the electronic controller is programmed to determine whether the sensor for detecting vehicles ahead is transmitting signals (i.e., is operational) but is not detecting any vehicle traveling ahead, and, if the sensor is operational and no vehicle traveling ahead is detected, to terminate autonomous braking when the speed of the first vehicle is less than the most recently determined speed of the vehicle ahead.

Abstract: An electropneumatic control arrangement for an automatic vehicle level control system, particularly of a commercial vehicle, includes at least; a solenoid valve unit having at least two electropneumatic solenoid valves, a compressed air inlet for infeeding compressed air, at least one compressed air connection for at least one air bellows and electrical control inputs, and an electronic control unit for actuating the solenoid valve unit. The electronic control unit comprises control outputs for electrically connecting to the control inputs of the solenoid valve unit. A plug connector is configured on the housing of the solenoid valve unit, in which the electrical control inputs are disposed, and a plug connector is provided on the housing of the electronic control unit, in which the control outputs are disposed. The plug connectors are mechanically plugged into each other.

Abstract: An apparatus and method for effecting wheelbase adjustment for utility vehicles having one or more axles with wheels, includes one or more adjustment mechanisms to which compressed air can be applied. The adjustment mechanism(s) adjust at least one of the axles in relation to the body of the vehicle. A pressure sensor measures the pressure of the compressed air in the adjustment mechanism(s) and generates corresponding pressure signals. A pulse-controlled valve or, alternatively, a spring-return valve, is employed to optionally feed the compressed air into the adjustment mechanism(s) and discharge the compressed air from the adjustment mechanism(s).

Abstract: An electrically controlled brake system 10 for a tractor is provided that is equipped with an anti-jackknifing brake that can be actuated by means of a manual operating element and that acts only on the brakes of a trailer coupled to the tractor. The operating element is an electrical element which generates an electrical signal to control a valve device by means of which the braking force of the anti-jackknifing brake can be increased.

Abstract: A method and system for determining a brake pressure which is predefined by a vehicle control system involve effecting a vehicle braking process initiated by an electronic braking system and/or the vehicle driver, determining a vehicle deceleration a, and a brake pressure pestim, comparing the brake pressure pestim against a reference pressure pB, terminating the braking process triggered by the electronic braking system when pestim is less than the reference pressure pB, or continuing the braking process triggered by the electronic braking system when pestim is greater than or equal to the reference pressure pB.

Abstract: A commercial vehicle trailer includes an electronically controlled braking system having an electronic control unit that has a parameter memory having one or more memory areas that can store vehicle-specific data. The electronic control unit controls the electronically controlled braking system based on the vehicle-specific data, and has an interface to an external computer. To permit reliable correlation of the vehicle-specific data to the commercial vehicle trailer, information is displayed on the trailer itself that characterizes the vehicle-specific data and that can be read into the computer via a reader unit. Based on such information, the appropriate vehicle-specific data is transferred to the electronic control unit.

Abstract: A vehicle safety system comprising a vehicle stability-regulating system, one or more secondary safety components and an electronic interface. The electronic interface communicates with both the vehicle stability-regulating system and the secondary safety components. The electronic interface receives data from the vehicle stability-regulating system and controls the operating condition of the secondary safety components based thereon.

Abstract: The invention relates to an actuation device for a brake (40, 41, 42, 43, 50), for applying an output force (FA) to means (40, 41, 42, 43, 50) which generate braking force, depending on an input parameter (FE), comprising a lever (1) and a force generator (7) which brings a force (FFeder) to bear on the lever (1) at an effective angle (?), relative to the longitudinal axis of the lever (1). Furthermore, an alternative actuating device for a brake is given, which permits a significant reduction of the power and energy requirements relative to direct-acting actuating devices. The above is achieved by means of a low-friction actuation characteristic as a result of the construction features of the actuating device and/or the selection of materials used. A preferred field of application is in electrically-driven braking systems on commercial vehicles.

Abstract: In a vehicle brake system including first and second brake circuits, a dual-circuit brake actuator, first and second control lines, the first brake circuit including a first brake pressure regulating valve and a first pressure sensor, the second brake circuit including a second brake pressure regulating valve and a second pressure sensor, the brake actuator connected to the first valve via the first control line to control that valve, and, via the second control line, to the second valve to control that valve, a control unit is communicatively connected to the pressure sensors and brake actuator and is adapted to effect a method for detecting a brake system circuit failure including determining a first pressure difference in the first brake circuit and a second pressure difference in the second brake circuit during actuation of the brake actuator, and determining a first comparison value from the first and second pressure differences.

Abstract: A brake-control module for a first trailer of a tractor-trailer combination reduces braking response time for the second trailer and subsequent trailers in the vehicle train. The brake-control module includes a tractor interface. The tractor interface includes a tractor CAN interface for connecting to a tractor CAN connector of a tractor, a tractor voltage-supply interface for connecting to a tractor voltage-supply connector of the tractor, and a tractor warning-light interface for connecting to a tractor warning-light connector of the tractor. The brake-control module further includes a second-trailer interface for connection of a second trailer that is coupled to the first trailer.

Abstract: A vehicle compressed air supply system includes a supply part with compressor, an air drying part and a consumer part including consumer circuits with brake circuits supplied with compressed air via a multi-circuit safety valve. The brake circuits, and optionally at least one other consumer circuit, include compressed air tanks. Pressure in the circuits is monitored by sensors and evaluated by an electronic control device. To determine system parameters in terms of tank size and compressor output, when filling circuits, the rate of pressure increase in a circuit is determined as a function of compressor speed, and air-drying regeneration is effected. The period of a pre-defined pressure drop or pre-defined pressure gradient is determined and air volume for completing regeneration is calculated from the magnitude of the pressure drop, regeneration time and throttle diameter. Tank volume is determined therefrom. Compressor output is calculated from tank volume and rate of pressure increase.

Abstract: A plug having a guide, which has a first guiding section and a second guiding section for guiding the plug into a corresponding plug receptacle. The second guiding section is disposed at a greater distance from the plug face than the first guiding section. The first guiding section and the second guiding section have contours in their respective cross-sections that are different from one another.