Abstract: An electronic brake system for a trailer vehicle includes a brake control device. The electronic brake system further includes a first electrical interface for connecting to a tractor vehicle and having a first voltage supply for specific electrical loads in the trailer vehicle. The electronic brake system further includes a high-speed data interface for connecting to the tractor vehicle, and having a second voltage supply. The brake control device is connected to the second voltage supply.

Abstract: A method for controlling functions of a vehicle by a remote control unit is provided herein. Signals are transmitted wirelessly between the remote control unit and a station in the vehicle. A data transmission rate depends on a distance between the remote control unit and the station. The data transmission rate is specified. If the data transmission rate is below a defined limit value, the vehicle functions to be controlled are no longer performed or are performed to a restricted extent only and/or the remote control unit emits warning signals.

Abstract: A system for transferring data from a wireless network of a vehicle includes a first station for covering a first wireless network, which is secured by encryption and a mobile device. The mobile device is configured for connecting to the first wireless network and to a second wireless network. The first station is provided in the vehicle, wherein access data for connecting to the two wireless networks is available in the mobile device. In the vehicle, data are available, which are transmitted from the first station to the mobile device, and from there to the second station.

Abstract: Disclosed is a valve arrangement for aerating spring accumulator brake cylinders in a trailer vehicle with a pneumatic braking system, the valve arrangement having a first connection for a line connected to a reservoir of the trailer vehicle, a second connection for a line leading to the spring accumulator brake cylinders, and a first pneumatic control input, wherein the first connection can be connected to the second connection depending on the pressure on the first pneumatic control input. The first control input is connected to a line connected to a control connection of the trailer vehicle or to a line connected to the reservoir. A valve unit, a pneumatic braking system, a method of operating the same, and a trailer vehicle including the same are also disclosed.

Abstract: A method for establishing a wireless connection between a first transceiver in a trailer vehicle (12) having an electronic braking system and at least one second transceiver outside of the trailer vehicle (12) is disclosed. The first transceiver is assigned to an electronic control unit (14, 22) in the trailer vehicle (12), which is coupled to a tractor vehicle (10) and a wired connection (15, 16, 17) exists. In the method, a) a trigger signal is generated in the tractor vehicle (10) and transmitted the control unit (14, 22); b) the first transceiver establishes a preliminary connection to the at least one second transceiver, c) the at least one second transceiver indicates via an output unit the preliminary connection, and d) if conditions are met, a permanent connection between the first transceiver and the second transceiver is established.

Abstract: A method controls functions in a vehicle having at least one wheel-speed sensor (15) and having one or more signal generators and/or signal receivers assigned, in particular, to a vehicle rear. In accordance with the method, a direction of rotation is also detected with the wheel-speed sensor (15). In addition, the signal generators and/or signal receivers are actuated automatically in a manner depending on signals of the wheel-speed sensor (15).

Abstract: A method and a device for assessing the compatibility of braking systems of a vehicle combination comprising a tractor and a trailer determine applied braking power (Wa) for a braking process of the trailer, and a required braking power for the braking process (Wb) of the trailer.

Abstract: A system and method for braking a drawbar trailer having a front axle and one or more further axles, each axle having at least two wheels, includes first sensors which sense the axle load of at least one axle, and second sensors which sense the rotational wheel speeds. Brakes actuatable with a pneumatic brake pressure brake the trailer. Brake signals generated in the towing vehicle are transmitted between the towing vehicle and the trailer. A control unit receives these brake signals and the sensor signals, and determines the axle load. The operating pressure is adapted to the brake pressure which is fed to the brakes. The control unit detects the brake pressure value as a function of (i) the specific axle loads of the front axle and the other axles and (ii) the received brake signals, and actuates the brakes such that the detected brake pressure is made available.

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 display system is provided for a trailer equipped with an electronic braking system (EBS) and/or an anti-lock braking system (ABS). A separate display device having a display is provided for indicating at least the mileage on the trailer vehicle. In order to reduce the amount of wiring required, a speed signal of at least one of the wheels of the trailer is looped through the EBS/ABS and is routed directly to the display device.

Abstract: The invention relates to a method and a device for assessing the compatibility of braking systems of a vehicle combination comprising a tractor and a trailer. According to the invention, an, applied braking power (Wa) for a braking process of the trailer is determined, and a required braking power for the braking process (Wb) of the trailer is determined.

Abstract: A display system is provided for a trailer equipped with an electronic braking system (EBS) and/or an anti-lock braking system (ABS). A separate display device having a display is provided for indicating at least the mileage on the trailer vehicle. In order to reduce the amount of wiring required, a speed signal of at least one of the wheels of the trailer is looped through the EBS/ABS and is routed directly to the display device.

Abstract: A system and method for braking a drawbar trailer having a front axle and one or more further axles, each axle having at least two wheels, includes first sensors which sense the axle load of at least one axle, and second sensors which sense the rotational wheel speeds. Brakes actuatable with a pneumatic brake pressure brake the trailer. Brake signals generated in the towing vehicle are transmitted between the towing vehicle and the trailer. A control unit receives these brake signals and the sensor signals, and determines the axle load. The operating pressure is adapted to the brake pressure which is fed to the brakes. The control unit detects the brake pressure value as a function of (i) the specific axle loads of the front axle and the other axles and (ii) the received brake signals, and actuates the brakes such that the detected brake pressure is made available.

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: The invention relates to a valve device (1) for an air-suspension device for a vehicle, containing a manually actuatable air-admission valve (10, 34, 46) for admission of air to the air-suspension bellows (3) of the air-suspension device, a manually actuatable vent valve (11, 35, 47) for venting the air-suspension bellows (3) and a first electrically actuatable valve (7, 32, 44), the air-admission valve (10, 34, 46), the vent valve (11, 35, 47) and the first electrically actuatable valve (7, 32, 44) being disposed in a common housing (55). On this basis there is specified, for an air-suspension device for a vehicle, a valve device that can be used simply and inexpensively both in a level-regulating device containing an air-suspension valve and in an electronically controlled level-regulating device. This is achieved by the fact that a second electrically actuatable valve (6, 33, 45) is disposed in the housing (55).

Abstract: The invention relates to a pneumatic suspension unit for a vehicle, comprising pneumatic suspension bellows (3) and an electronically controlled level control unit (1), which aerates and bleeds the pneumatic suspension bellows (3) as required by means of an electrically operated valve device (6, 7, 32, 33, 44, 45). The invention provides a pneumatic suspension unit for a vehicle, which is equipped with an electronic controller for the level control and in which the level of the vehicle body can nevertheless be modified during an interruption or malfunction of the power supply. To achieve this, the inventive system comprises at least one manual actuating element (18, 19), which when manually actuated permits the aeration and/or bleeding of the pneumatic suspension bellows (3), even during a malfunction of the power supply to the electronically controlled level control unit (1).

Abstract: A process for braking a vehicle having at least first and second brakes, comprises supplying energy to the first and second brakes so as to actuate them, the energy being distributed between the first and second brakes in accordance with the brakes' response energies. Preferably, the momentary values of the response energies are used so that the first and second brakes are actuated simultaneously.

Abstract: A method and system for operating an electrically controlled pressurized-fluid vehicle brake system having a brake cylinder for actuating a brake, a braking-pressure sensor for obtaining braking-pressure data which indicate the braking pressure in the brake cylinder, a valve device for influencing the braking pressure by which the brake cylinder can communicate optionally with a supply pressure or with a set pressure in order to feed pressurized fluid, and a set-pressure sensor for obtaining set-pressure data. Braking pressure is adjusted as dictated by the set-pressure data and/or by the braking-pressure data. The set-pressure data are checked by temporarily switching the pressurized-fluid feed path to the brake cylinder from the supply pressure to the set pressure by actuation of at least one part of the valve device, and then monitoring the resulting braking pressure based on the braking-pressure data.

Abstract: A method and system for operating an electrically controlled pressurized-fluid vehicle brake system having a brake cylinder for actuating a brake, a braking-pressure sensor for obtaining braking-pressure data which indicate the braking pressure in the brake cylinder, a valve device for influencing the braking pressure by which the brake cylinder can communicate optionally with a supply pressure or with a set pressure in order to feed pressurized fluid, and a set-pressure sensor for obtaining set-pressure data. Braking pressure is adjusted as dictated by the set-pressure data and/or by the braking-pressure data. The set-pressure data are checked by temporarily switching the pressurized-fluid feed path to the brake cylinder from the supply pressure to the set pressure by actuation of at least one part of the valve device, and then monitoring the resulting braking pressure based on the braking-pressure data.

Abstract: A process to determine the response pressure of a brake in a braking system of a vehicle comprises: measuring the existing vehicle deceleration of the vehicle to determine a value of ground-vehicle deceleration, supplying a test pressure to the brake, measuring the deceleration of the vehicle after the test pressure has been supplied to the brake to determine a value of vehicle test deceleration, and comparing the value of ground-vehicle deceleration and the value of vehicle test deceleration. If the value of vehicle test deceleration is greater than the value of ground-vehicle deceleration by more than a predetermined tolerance value, the steps of the process are repeated with a reduced test pressure until the difference between the values of ground-vehicle deceleration and vehicle test deceleration is no more than the predetermined tolerance value.