Abstract: A joint-site structure for a shaft/disk composite workpiece, in particular for joining a shaft 1 to a connection flange 2 of a hub part of the disk by means of friction welding. A respective defined gap 4, 4? is incorporated between shaft 1 and connection flange 2 of the hub part in front of and behind a joint site 3, this gap 4, 4? preventing the spread of the material softened during the friction welding. The joint-site structure is used, for example, during the joining of a crankshaft and a hub part of a drive wheel.

Abstract: A radiation-curable composite layered sheet or film comprising at least one substrate layer and one outer layer, said outer layer being composed of a radiation-curable composition having a glass transition temperature of more than 40° C.

Abstract: An apparatus and method for data security for a vehicle component in which security data is stored in the vehicle component are provided. Security data which is present in the vehicle component is stored in the vehicle component after having been encrypted by an encryption method and, when necessary, is decrypted by a decryption method and stored again after use having been encrypted again by the encryption method.

Abstract: In a sealing element, in particular for forming a seal between an impeller or rotary piston of a pivoting motor and a component surrounding the impeller, wherein the sealing element includes a base body with a first spring element integrally formed on a basic body for generating a first sealing pressure force, the basic body has an inner space to which a pressure medium is admitted in order to generate a second sealing pressure force intensifying the first sealing pressure force.

Abstract: In a method for changing the lift of inlet valves of an internal combustion engine between a partial lift and a full lift, the lift of the inlet valves being controlled by at least one camshaft, which comprises partial lift cams and full lift cams acting alternatively on the inlet valves, the control times of an inlet valves assigned to the camshaft are adjusted by rotating the camshaft by a certain angle so that the changeover between the partial lift cams and the full lift cams can be carried out at points within a characteristic performance graph of the internal combustion engine at which the suction capacity of the internal combustion engine when using the partial lift cams corresponds essentially to the suction capacity of the internal combustion engine when using the full lift cams.

Abstract: In a method for operating a self ignition internal combustion engine in which fuel is injected directly into a combustion chamber by means of an injection nozzle, such that a portion of the fuel is injected into the combustion chamber as a pre-injection amount forming a homogenous pre-mixture providing for a combustion phase comprising a low temperature phase and a high temperature phase and the main fuel amount is injected into the combustion chamber during the high temperature phase of the pre-injection fuel combustion such that the ignition of the main injection amount takes place after the start and before the end of the high temperature phase.

Abstract: An optical display system for a vehicle (10), having at least one first display unit (1) and at least one second display unit (2), with information for display being allocated to the at least one first display unit (1) and/or to the at least one second display unit (2). It is possible to switch from the at least one first display unit (1) to the at least one second display unit (2), or from the at least one second display unit (2) to the at least one first display unit (1), as a function of a determined current driving situation, in order to display the information.

Abstract: A user interface 4 for a communication system 2 in a motor vehicle 1 which, in a restricted operating mode, restricts a functionality of a radio interface 3 for wireless connection to a radio communication network and to a communication system 2 for a motor vehicle 1 with a radio interface 3 for wireless connection to a radio communication network and for setting up a corresponding communication link, and to an associated operating method. The user interface 4 activates a waiting function 4.1 for an incoming call in the restricted operating mode, which informs the caller of the cause and/or expected duration of the operation with restricted functionality.

Abstract: A toroidal gearbox in which an annular central disc with a toroidal friction surface and an annular main cylinder of a hydraulic pressure device are located concentrically to a central shaft. A radial partition wall is provided between the central disc and the main cylinder to form two working pressure chambers, the pressurization of which results in axial displacement of the central disc relative to the central shaft to apply contact pressure forces on the friction surface. A pressure piston between the partition wall and the main cylinder having an axial projection effectively bypasses the partition wall and acts on the central disc, in addition to the pressure applied in the pressure chamber between the partition wall and the central disk, thereby achieving an even distribution of the operating force in the circumferential direction, as exerted on the central disc, by the pressure piston.

Abstract: A vehicle is proposed with a lighting device (7) which has a housing part (9) and a transparent front lens (11) arranged thereon, the housing part (9) being connected in a positionally fixed manner to the vehicle body, and a spring element provided in the connecting region of the lens (11) to the housing part (9). The spring element, when there is an impact effect in the direction of the longitudinal axis of the vehicle, permits the lens (11) to be displaced in the direction of the housing part (9) from a fitted position into a withdrawal position set back in relation to the outer skin of the vehicle. The lighting device (7) is distinguished in that the lens (11) is additionally mounted pivotably about an axis (55) running in the vertical direction to an imaginary horizontal.

Abstract: An exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and an associated operating method. In particular, an exhaust gas purification system for a motor vehicle, for which predetermined maintenance intervals is provided. The system includes a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for the exhaust gas purification, which comprises predetermined maintenance work after predetermined maintenance intervals is also provided.

Abstract: A method is provided for producing peripherally closed hollow profile section using fluidic internal high pressure. A hollow profile section blank is inserted into a cavity of an internal high pressure forming tool and thereafter being pressed mechanically into an intermediate form approximate to the final form of the hollow profile section, after which, with the tool closed, the intermediate form of the blank is expanded into the final form of the hollow profile section. The blank used in terms of its peripheral length, possesses oversize with respect to the peripheral length of the forming tool cavity. Moreover, the blank material which is excess with respect to the blank material required for the hollow profile section blank to come to bear completely against the cavity of the forming tool is pushed into the blank interior, so as to form an indentation, at the earliest during the pressing operation.

Abstract: A device for detecting a momentary distance between a motor vehicle and an obstacle is provided. The device includes distance sensors and a control unit that is designed to calculate a driving path to be traveled through in future by the motor vehicle. The driving path is calculated using dynamic vehicle data and the control unit is designed to differentiate between relevant obstacles which are located within the driving path, and irrelevant obstacles which are located outside the driving path. A method for detecting a momentary distance between a motor vehicle and an obstacle is also provided.

Abstract: In accordance with a known design, the drive torque of an internal combustion engine is superimposed on a drive torque of an electric drive unit by a planet set to which the drive torque of the internal combustion engine is fed via the sun gear. The torque of the electric drive unit is transferred for different shift positions of a clutch by driving different ring gears of the planet set. A drive train which is improved in terms of the operating ranges may be provided by having the electric drive unit be coupled directly to the input shaft via a clutch or coupled to a sun gear of the pick off gear unit via a clutch. This provides improved operation when the drive train is operated on the one hand as a conventional automatic transmission and on the other hand as an infinitely variable transmission with two driving ranges.

Abstract: The invention relates to an apparatus for finding a parked vehicle again. According to the invention, a portable unit is provided with a pressure sensor whose signals can be evaluated by an evaluation and control unit in order to determine the current air pressure, with the evaluation and control unit evaluating the determined air pressure in order to determine altitude, and storing a first air pressure value as a reference value at a predeterminable first time, which reference value represents an instantaneous altitude of a geographic position of the parked vehicle, with the evaluation and control unit estimating a height difference between a current geographic position of the portable unit and the geographic position of the parked vehicle at a second time, and/or continuously from a pressure difference between the determined current air pressure value and the reference value.

Abstract: A brake system, in particular for utility vehicles is provided. A compressed-air-operated brake system (10) which is used, in particular, in utility vehicles, has a multi-circuit brake system having a front-axle brake circuit (20) and a rear-axle brake circuit (13). Here, a load emptying valve (12) is provided in the front-axle brake circuit (20) in order to influence the braking force which is adapted to the loading of the vehicle. The braking force or the brake pressure in the rear-axle brake circuit (13) is predefined by means of an automatically load-dependent braking force regulating process as a function of the load acting on the rear axle. The load emptying valve (12) is actuated by a fluidic connection (16) from the rear-axle brake circuit. A check valve (17) is provided for shutting off the fluidic connection (16) between the load emptying valve (12) and the rear-axle brake circuit (13) when a brake slip regulating process is carried out at the rear axle.

Abstract: The present invention relates to a method for joining at least one joint part (3), provided with a through-opening (4), to a hollow profile (1), the joint part (3) being pushed with its through-opening (4) onto the hollow profile (1) up to a joint point (2), and the hollow profile (1) being expanded at least at the joint point (2). In order to improve the durability of the connection between joint part (3) and hollow profile (1), an adhesive (11) is arranged between an inner side (6) of the joint part (3) and an outer side (5) of the hollow profile (1) before the expansion in such a way that the adhesive (11) adheres to the inner side (6) and to the outer side (5) in the region of the joint point (2) after the expansion.

Abstract: A punch designed for producing holes in the walls of hollow parts, the part being subjected to the action of high pressure in the interior by a medium during the punching. In particular when producing hollow parts by the internal high pressure forming process, it is normal practice, following the forming and with the part still located in the forming tool, to make holes in the wall. In order to avoid a drop in the internal high pressure when cutting through the wall of the part, the punch is designed so as to taper at an angle toward the cutting edge in its region plunging into the part to be punched. As a result, sealing of the hole occurs during the punching.