Abstract: A sealing device for sealing a through opening in a vehicle chassis includes a sealing element that can be shifted between an open position, in which the through opening is released, and a closed position, in which the through opening can be closed. The sealing device has an adjusting device which includes a guide housing that can be arranged in a spatially fixed manner on the vehicle chassis, in which guide housing a carrier element is translationally and pivotably guided, where the carrier element has the sealing element. A slide guide is provided, via which the carrier element can be translationally shifted and pivoted in relation to the guide housing. A traction element is translationally entrainably connected to the carrier element, and simultaneously connected in a rotationally decoupled manner, via a pivot bearing. The traction element is translationally shiftable by the drive.

Abstract: Methods are disclosed for starting up a fuel cell system from starting temperatures below 0° C. The methods apply to systems comprising a solid polymer electrolyte fuel cell stack whose cathodes comprise an oxygen reduction reaction (ORR) catalyst and whose anodes comprise both a hydrogen oxidation reaction (HOR) catalyst and an oxidation evolution reaction (OER) catalyst. In the methods, from the beginning of starting up until the fuel cell temperature reaches 0° C., the fuel cell stack current is kept sufficiently low such that the current density drawn does not exceed the stack's capability for the oxidation evolution and the oxygen reduction reactions to occur at the anode and cathode respectively (i.e. current density drawn is less than the stack's maximum OER/ORR current density).

Abstract: A fuel tank venting system for a motor vehicle includes an outlet side of a tank venting valve connected to an inlet side of a first vent line and to an inlet side of a second vent line. An outlet side of the first vent line is connected to an intake manifold upstream from a throttle valve and downstream from an air filter, and an outlet side of the second vent line is connected to the intake manifold downstream from the throttle valve. A position sensor may be located at a first position and the first closing element has a detectable element. The position sensor is connected to an electronic control device to transmit signals. A position of the first closing element may be determined by means of the position sensor and the detectable element.

Abstract: A valve operating device, in particular for an internal combustion engine, has a camshaft, a cam unit mounted in an axially moveably manner on the camshaft, and an actuator unit which has an actuator for displacing the cam unit on the camshaft. The actuator is periodically mechanically forcibly decoupled during operation.

Abstract: A method for flushing a fuel cell system during a power-down cycle includes conveying air by an air conveying device through a cathode space of a fuel cell and releasing the conveyed air through an exhaust air line. An outlet valve is cyclically closed and opened during the power-down cycle, where an opening duration depends on an amount of air that is conveyed and the outlet valve connects an anode discharge line to the exhaust air line. The conveyed air is guided from a delivery side of the air conveying device directly to the exhaust air line at least in part through a system bypass.

Abstract: A lighting device for illuminating the vehicle interior of a motor vehicle is provided. The motor vehicle includes a plurality of light sources for illuminating the vehicle interior and a control device that can be used to actuate the plurality of light sources independently of one another. The motor vehicle further has an operator control device connected to the control device and includes segments and operator control elements that can be used to actuate the light sources independently of one another by a user. A display unit displays at least a partial image of the vehicle interior that can be illuminated or is illuminated by the controllable light sources.

Abstract: An electrical connection device for an electromagnetic valve that has a temperature sensor for sensing the temperature of a medium. The electrical connection device includes an electrical contact plug. The electrical contact plug is part of a common housing which additionally includes an actuator coil for the electromagnetic valve as well as a plug contact for making electrical contact with the temperature sensor when the housing is mounted onto the electromagnetic valve.

Abstract: An illuminated decorative part includes a flat visible side facing an observer and an illumination region behind the visible side as viewed by the observer, which has multiple discrete light sources. At least partially transparent optical elements that influence the light are arranged between the visible side and the illumination region. The optical elements include at least one flat scattering element. The decorative part includes light guides for guiding the light orthogonally to the surface of the visible side arranged between the scattering element and at least one—but not all—of the light sources.

Abstract: A valve train device, in particular for an internal combustion engine, includes a support element and a cam element which can be moved axially relative to the support element. The valve train device further includes a switch unit for axially moving the cam element, which switch unit includes a displacer that is intended to be at least operatively inserted between the support element and the cam element in order to axially move the cam element.

Abstract: A device for adjusting the light distribution of a vehicle headlight with a plurality of light sources, includes a first control unit for adjusting the light distribution. The first control unit is coupled to a second control unit, the second control unit being coupled to at least one input device for inputting user settings for adjusting the light distribution in a user -defined manner and/or includes at least one interface for coupling to at least one input device of this type, the second control unit generating control data from the user settings and transmitting the control data to the first control unit in order to adjust the light distribution.

Abstract: A vehicle temperature management apparatus includes: a channel selection section that selects at least one of a chiller heat exchange channel, a radiator heat exchange channel, and a heater heat exchange channel as a channel of a refrigerant in a refrigerant circulation circuit; a switching control section that controls the channel switching section such that the channel switching section selects at least one of the chiller heat exchange channel, the radiator heat exchange channel, and the heater heat exchange channel; and an operation control section that controls an operation of a chiller. When the radiator heat exchange channel or the heater heat exchange channel is selected as the channel of the refrigerant, the switching control section controls the channel selection section such that the channel selection section further selects the chiller heat exchange channel, and the operation control section does not operate the chiller.

Abstract: A valve drive device, in particular for an internal combustion engine, includes a support element fixed to a housing and at least one axially shiftable cam unit allocated to a valve. The cam unit has at least three cam tracks. At least one switching unit which is a displacement body is provided to displace at least one part of the cam unit in the direction of a first actuation direction for axial shifting. The displacement body displaces at least one part of the cam unit in the direction of a second actuation direction opposing the first actuation direction.

Abstract: An energy storage device for a motor vehicle includes a first energy store and a second energy store for storing electrical energy, a charging connection for charging the energy stores, an operating connection for operating a load on the energy storage device, and a switching device which has a plurality of switching elements and via which the energy stores can be connected selectively in series or in parallel. A fifth switching element of the switching device is permanently electrically coupled to the electrical poles of opposite polarity of the energy stores and the energy stores can be connected in series via the fifth switching element independently of the other switching elements of the switching device.

Abstract: A camshaft for an internal combustion engine has a fundamental shaft which has a first toothing designed as external toothing and has at least one cam element which is arranged on the fundamental shaft and has a second toothing designed as internal toothing, The cam element can be displaced in the axial direction relative to the fundamental shaft and is connected to the fundamental shaft in a rotationally fixed manner via the toothings. At least one of the toothings has teeth whose respective tooth width varies in the axial direction of the fundamental shaft.

Abstract: A valve train device, in particular for an internal combustion engine, includes at least one camshaft which has at least one cam element with at least one multi-track cam. The cam element is provided to be axially displaced by a maximum displacement path. The valve train device further includes a limiting mechanism which is provided to limit in at least one operating state the displacement path of the cam element to a switching path of the switching operation.

Abstract: A method for data transmission in which data is emitted and/or received by a communication device in a first radio network formed according to a first standard in a first operating mode and data is emitted and/or received in a second radio network formed according to a second standard in a second operating mode. The communication device detects whether it is inside or outside a receiving region of the first radio network. The communication device is operated in the first operating mode if it is inside the receiving region of the first radio network, and the communication device is operated in the second operating mode if it is outside the receiving region of the first radio network. The second standard is an IEEE 802.11p standard and the first standard is a standard of the IEEE 802.11 regulation that is different from the IEEE 802.11p standard. The communication device takes part in an ad-hoc communication in the second operating mode.