Abstract: A cleaning device for a vehicle provides a liquid cleaning pulse and/or a compressed air cleaning pulse for a cleaning nozzle. The cleaning device includes a module compressed air connection for receiving compressed air and a pressure cylinder with a cylinder volume. A movable separator divides the cylinder volume into a compressed air receiving chamber and a cleaning liquid receiving chamber in a fluid tight manner. The air chamber has an air chamber connection which can be supplied with compressed air. Contraction of the liquid chamber occurs when filling the air chamber by moving the separator against a restoring force. A switching valve establishes a pneumatic connection between the module compressed air connection and the air chamber connection. A bypass valve establishes a pneumatic connection between the module compressed air connection and the compressed air nozzle line while bypassing the switching valve for providing a bypass compressed air flow.

Abstract: An electric brake system for a vehicle is provided, wherein the vehicle has a brake value encoder, at least one first axle having at least two wheels and a second axle having at least two wheels. A first axle modulator is associated with the first axle. A second axle modulator is associated with the second axle. A single central control unit is further provided, which generates and outputs a first brake signal for the first axle modulator and a second brake signal for the second axle modulator as a function of a brake signal from the brake value encoder or as a function of a further brake request. The first and second axle modulator are each configured to decelerate the wheels of the first and second axle as a function of the first and second brake signal from the central control unit.

Abstract: A method for transmitting data between a trailer and a road user in a vehicle environment is provided, wherein the data are transmitted according to a V2X standard with low latency via a wireless V2X data connection between a trailer communication module of the trailer and a subscriber communication module of the road user. The wireless data connection is between the trailer communication module and the subscriber communication module, or indirectly via a distribution station. The distribution station forwards the transmitted data directly, wherein the trailer communication module autonomously selects and activates an operating mode depending on the respective road user. As a function of the activated operating mode, trailer data relating to the trailer are selected and autonomously transmitted according to the V2X standard via the wireless V2X data connection and/or subscriber data provided by road users are received and autonomously processed.

Abstract: A trailer control valve for controlling a hydraulic dual-line brake system of a trailer vehicle has an inlet for a hydraulic supply line of the towing vehicle, a tank outlet for an unpressurized return-flow line of the towing vehicle, a brake pressure outlet, and a supplemental pressure outlet. The brake pressure outlet can be connected in a stepped manner with an electronically controlled brake control valve to the supply pressure inlet or to the tank outlet. The supplemental pressure outlet can connect using a valve arrangement so that an outlet pressure of the supply pressure is reduced to a supplemental pressure at the supply pressure inlet or at the tank outlet. The valve arrangement has a pressure-limiting valve and a shut-off valve arranged in series. The shut-off valve can be a 3/2-way valve, which when not energized, the supplemental pressure outlet is connected to the tank outlet.

Abstract: A method for coupling a semi-trailer with a top plate to a truck tractor with a coupling plate includes: importing a reference height profile assigning a reference gradient to different actual values for the relative height of the chassis to the rear axle of the truck-tractor; changing the relative height such that the coupling plate approaches the top plate; continuously determining actual height values and height gradients while changing the relative height, wherein an actual height value is assigned the currently determined actual height gradient; checking a coupling criterion by comparing a currently determined actual height gradient with the reference gradient, wherein the reference gradient which in the imported reference height profile is assigned to the same actual height value as the currently determined actual height gradient is applied; and, maintaining the relative height when the currently determined actual height gradient deviates from the reference gradient.

Abstract: The disclosure is directed to a fail-safety valve unit for a parking brake function of an electronically controllable pneumatic braking system for a utility vehicle. The fail-safety valve unit has a monostable release valve and a ventilating valve. The release valve, when energized, provides a release pressure at a first release valve port for the parking brake function and, when de-energized, connects the first release valve port to the ventilating valve. The ventilating valve has a nonlinear ventilating characteristic which permits ventilating of the release valve port from the release pressure to a partial brake pressure with a first gradient, and ventilating of the release valve port from the partial brake pressure to a full brake pressure with a second gradient, wherein the first gradient is greater than the second gradient. A parking brake module and a vehicle are part of the disclosure.

Abstract: An electric brake system for a vehicle is provided, wherein the vehicle has a brake value encoder, at least one first axle having at least two wheels and a second axle having at least two wheels. A first axle modulator is associated with the first axle. A second axle modulator is associated with the second axle. A single central control unit is further provided, which generates and outputs a first brake signal for the first axle modulator and a second brake signal for the second axle modulator as a function of a brake signal from the brake value encoder or as a function of a further brake request. The first and second axle modulator are each configured to decelerate the wheels of the first and second axle as a function of the first and second brake signal from the central control unit.

Abstract: A method may determine transformation parameters for a transformation of a position of a vehicle between a first coordinate system and a second coordinate system. In the method, a trajectory may be traveled with the vehicle in a step. In another step, the positions of the vehicle while traveling the trajectory may be acquired in the first coordinate system with a first position detection system, and in the second coordinate system with a second position detection system. In a further step, transformation parameters between the coordinate systems may be derived based on the positions of the vehicle acquired in the coordinate systems, and based on at least one geometric parameter of the trajectory.

Abstract: A method for inspecting a vehicle on a site with a management system, including determining whether at least one vehicle on the site intends to make a departure from a stoppage place, generating a control command by the management system, and transmitting the control command to the inspection vehicle such that the inspection vehicle moves along an inspection path to the stoppage place. The method further includes detecting an environment around the inspection vehicle at the stoppage place by the sensor system while a detection zone of the at least one sensor is oriented at least in some regions at a subregion beneath the vehicle and/or at the vehicle. The method further includes determining, in dependence on the sensor signals generated by the sensor system, whether there is an impediment by which the departure of the vehicle is impeded, in order to carry out a pre-departure check.

Abstract: A braking system includes a service braking system having friction brakes actuatable by a pressure medium, an endurance braking system realized as a hydrodynamic or electrodynamic retarder, an electric machine connected to the wheels on an axle and operatable as a generator, and a foot-brake valve actuatable via a brake pedal. The braking-force demand signaled via a displacement of the pedal is satisfied, in order of priority, by the electric machine in generator operating mode, the retarder, and the service braking system. The distribution of the braking force to the components is communicated to a driver. To inform the driver about the distribution of the braking force, without this requiring the driver to look away from the traffic area ahead, in the case of a change in distribution of braking force, a haptically perceptible signal force is briefly superimposed, via the actuator, on a restoring force acting upon the pedal.

Abstract: A method determines a vehicle mass of a self-driving vehicle, wherein an internal force can be exerted on the self-driving vehicle by the automated control of an electronic drive system and/or an electronic braking system. The method includes determining whether a trigger event is present indicating a change in vehicle mass is likely, and activating a learning operating mode in the presence of a trigger event wherein the self-driving vehicle is operated alternately in a first and a second phase. In the first phase, an internal force is exerted on the self-driving vehicle, and in the second phase, an internal force is exerted on the self-driving vehicle. A disturbing force acting in the phases is determined. The vehicle mass is determined depending on the vehicle acceleration and the internal force present in each phase, as well as depending on the determined disturbing force.

Abstract: A method for controlling the brakes of a vehicle combination having a towing vehicle and an attached accessory device or at least one trailer vehicle coupled to the towing vehicle. The vehicle combination comprises an electronic brake system and first sensor means for determining the driving speed, where at least the towing vehicle comprises a friction brake system that can be actuated by the brake control system, and where at least the coupled attached accessory device or trailer vehicle has second sensor means for recognizing a need to brake the vehicle combination and for signaling a braking demand. A signaled braking demand is communicated directly or indirectly to the brake control system, and the vehicle combination is braked automatically by the brake control system actuating the friction brake system of the towing vehicle.

Abstract: A method is disclosed for controlling the brakes of a vehicle combination that includes a tractor vehicle and at least one trailer vehicle. A brake control valve in the tractor vehicle has magnetic switching valves that controlled by an electronic control unit, including an inlet valve and an outlet valve. To determine a current trailer status, it is determined whether the tractor vehicle is connected to a trailer vehicle and/or the line volume of the brake control line. A target pressure to be produced in the brake control line is specified and is produced by pulse-like opening of the inlet valve and/or the outlet valve. The brake control pressure in the brake control line is measured during the pressure build-up of pressure and a characteristic value for the trailer status and/or for the line volume of the brake control line is determined.

Abstract: A method for checking an actual-pressure sensor of a motor vehicle brake system includes establishing the duration of a reaction interval, establishing a threshold value, operating the motor vehicle brake system in an electronic braking mode where the brake system delivers a braking pressure for operation of a trailer brake of a trailer connected to the motor vehicle. The reaction interval starts at the beginning of the braking process and pneumatic actual braking pressure values are measured by means of an actual-pressure sensor, where a starting braking pressure is measured by the actual-pressure sensor at the beginning of a braking process carried out in the electronic braking mode for the trailer. Pneumatic reaction braking pressures are measured within the reaction interval and compared to a threshold value. Brake system operation is discontinued in the electronic operating mode if none of the measured reaction braking pressures exceeds the threshold value.

Abstract: Assembly in a compressed air system of a vehicle provided with an air ride suspension, the assembly being configured to lift the vehicle body by filling at least one air spring, the solenoid valves being switchable in cooperation with an electronic control device, and the assembly including a pressure line for filling the air springs, and the pressure line including a first branch line connectable to the pressure line via a pilot-controlled solenoid valve for filling the air springs and including first supply pipes and pilot-controlled solenoid valves for each air spring as well as a second branch line for providing a control pressure which includes second supply pipes for the pilot-controlled solenoid valves, wherein the second branch line is connected to the pressure line via a check valve, the check valve providing a block position against venting or pressure drop in the second branch line.

Abstract: A sensor arrangement (46) for an automated transmission includes multiple axially parallel shift rails (4, 14, 24, 34) being axially displaceable by associated shift actuators (8, 18, 28, 38). The sensor arrangement (46) has multiple displacement sensors (48, 56, 64, 72) made up of a signal transmitter (50, 58, 66, 74) attached to a shift rail and a signal receiver (52, 60, 68, 76) fixedly arranged on a housing. The signal transmitters are in the form of a permanent magnet, and the signal receivers are in the form of a 3D Hall sensor. To detect an external magnetic interference field, which can corrupt the sensor signals from the displacement sensors (48, 56, 64, 72), the signal transmitters (50, 58, 66, 74) have identical axial alignments of their magnetic poles, and the signal receivers (52, 60, 68, 76) are in a common plane (80) that is horizontal in their installation position.

Abstract: A method for braking a vehicle, including checking whether a trigger criterion for braking the vehicle is present, and if the trigger criterion is satisfied, causing a conditioning braking pulse through brief pulsed braking such that passengers experience brief braking of the vehicle, and immediately thereafter initiating a braking phase in which the vehicle is braked in at least two partial braking regions by an actual ego deceleration that varies with respect to time, wherein each partial braking region is extended over a partial braking interval and merge into one another without the actual ego deceleration changing abruptly, and the actual ego deceleration in at least one of the partial braking regions is changed continuously over the respective partial braking interval such that a different actual jerk is obtained in each partial braking region, and wherein the actual jerk behaves degressively over at least some partial braking regions.

Abstract: A power brake system (1.1) of a vehicle (2) has a pressure medium source (14) and a pressure-medium-operated primary brake system (30) operable as a service brake and steering brake system. The primary brake system has at least one foot brake valve (36a, 36b) and two wheel brake cylinders (40a, 40b) arranged on both sides on a drive axle (8) and operable independently of one another. A pressure-medium-operated secondary brake system (50), operable independently of the primary brake system (30), has a brake control valve (56) and at least one brake cylinder (62a, 62b. The secondary brake system (50) is electronically controllable and has a brake control valve (56) configured as a solenoid valve. The braking force of the at least one brake cylinder (62a, 62b) can be set by feeding or removing pressure medium to or from the latter via the brake control valve (56).

Abstract: The disclosure relates to a method for actuating an electrical drive of a trailer vehicle with a towing vehicle. According to an embodiment, the method include the steps of: determining a current mass of the towing vehicle; determining a current drive force of the towing vehicle; determining an acceleration demand in dependence upon the current mass and the current drive force; and, actuating the electric drive via an actuating signal in dependence upon the acceleration demand. The disclosure also relates to a control device for executing the method, a towing vehicle, a trailer vehicle and a semi-trailer truck.

Abstract: A method is disclosed for controlling a change in the direction of travel of a working vehicle between forward travel and rearward travel or vice versa. The working vehicle has an electronically controllable hydrostatic travel drive, a power-operated brake system with at least one electronically controllable brake circuit, and an electronic brake-control unit for controlling the travel drive and the brake circuit. While the vehicle is traveling in a first direction, a change in the direction of travel is triggered by a switchover of the hydrostatic travel drive by means of an assigned manual operating element. To reduce the mechanical loading, the deceleration of the working vehicle can be assisted by automatically actuating the brakes of the electronically controllable brake circuit, where these brakes are actuated by being triggered by the switchover of the operating element and are released by the time the vehicle comes to a standstill.