Abstract: A connection arrangement for fixing a lid to a filter housing and to a filter element, by which an insertion opening in the filter housing can be closed, includes a holding element on the filter element and a locking element on the lid. The holding element can be fixed by a contact surface for contacting the locking element in a recess of the filter housing. The holding element has a latching geometry with which it can be latched in the recess of the filter housing. The locking element is a shaft with a bolt rod and a handle part. The shaft is guided through the lid such that the lid and the filter element in the latching position can, by the bolt rod and a contact surface formed as a ramp on the holding element, which engage with one another by turning the locking element, be spanned against each other.

Abstract: A motor vehicle having a vehicle body with a passenger compartment, a chassis supporting the vehicle body, a vehicle axle which can be driven by a drive device, and a seat device which is arranged inside the passenger compartment and is rotatable relative to the passenger compartment about an axis of rotation. The chassis supporting the vehicle body has only one vehicle axle, about the axis of which, the vehicle body with the passenger compartment and the seat device arranged inside the passenger compartment are rotatable relative to each other.

Abstract: A device and a method for controlling a shading system of vehicle windows. A camera system detects image data of the head of a driver. The image data is evaluated to determine a gaze direction of the driver either as a function of a current pose of the head or body position of the driver ascertained based on the image data or as a function of eye positions of the driver determined based on image data. The shading system is controlled when the determined current gaze direction is looking in an interior rear view mirror, in the direction of the rear window, in the direction of one of the side windows, a reverse gear of the vehicle is set/activated, and the vehicle is in operation/activated. The control involves suspending or switching off a current shading/darkening of the rear window or of the side window in the gaze direction of the driver.

Abstract: A vehicle includes a platform disposed on the roof of the vehicle for landing/launching an autonomously free-flying drone where the drone is set up and designed to receive/deliver and transport an object. A first device determines a current position of the platform and/or the vehicle and a communication device directly or indirectly transmits data from the vehicle to the drone. The communication device transmits at least the current position of the platform and/or the vehicle to the drone.

Abstract: A device for the automated charging and discharging of an object on a free-flying autonomously controlled drone includes a landing platform for the drone, a storage device for storing objects, a robot where the robot is configured to remove an object from the storage apparatus in an automated manner and to provide the object on the landing platform to be picked up by the drone and is configured to pick up in an automated manner an object that is provided on the landing platform by the drone and to deposit the object in the storage apparatus, and a controller where the robot is controllable by the controller.

Abstract: A method for operating a petrol engine, in which air is introduced into an exhaust tract through which exhaust gas from the petrol engine can flow, bypassing the petrol engine, includes introducing the air into the exhaust tract at a point arranged downstream of a first three-way catalytic converter arranged in the exhaust tract and upstream of a second three-way catalytic converter arranged in the exhaust tract downstream of the first three-way catalytic converter, while the petrol engine is operated with a sub-stoichiometric combustion air ratio, where a desulphurization of the second three-way catalytic converter is effected.

Abstract: Methods are disclosed for detecting and lessening fuel starvation conditions in an operating fuel cell system. The fuel cell systems comprise a solid polymer electrolyte fuel cell with a regulating apparatus for regulating the pressure of fuel supplied to the anode inlet of the fuel cell, in which the outlet pressure from the regulating apparatus oscillates during operation. The methods involve monitoring an electrical output of the fuel cell during operation, determining the amplitude of oscillation in the electrical output, and then, if the determined amplitude of oscillation in the electrical output exceeds a predetermined amount thereby indicating a fuel starvation condition, taking a remedial action to lessen the fuel starvation condition.

Abstract: A method for controlling vehicle functions to increase the well-being and/or to increase the attention of at least one vehicle user in a vehicle. A number of vehicle functions are activated when at least one specific user menu is selected. Here, a lead function assigned to the user menu from the number of vehicle functions is predetermined in each case and the time and content processes of the other vehicle functions assigned to the user menu are coordinated with respect to the lead function.

Abstract: A hollow filter element for inserting into a filter device for filtering air, in particular of an internal combustion engine of a motor vehicle, includes a filter material which is held on the end face by a planar surround in a sealed manner. The planar surround has at least one grip recess for handling the hollow filter element. A filter device having such a hollow filter element includes a housing having a housing base part and a housing cover. The housing cover has at least one pin which, upon correct installation of the hollow filter element in the housing base part and when the housing cover is placed on the housing base part, projects into the grip recess of the planar surround.

Abstract: The invention relates to a battery device (10) for a vehicle, having a main battery system (20) with at least two battery units (BS) and an emergency battery system (30) with at least one battery unit (BS), wherein the main battery system (20) has more battery units (BS) than the emergency battery system (30), wherein the main battery system (20) and the emergency battery system (30) furthermore have the same nominal voltage and are electrically connected in parallel with one another, and the main battery system (20) has a main switch (22) for disconnecting the main battery system (20) and the emergency battery system (30) has an emergency switch (32), separate from the main switch (22), for disconnecting the emergency battery system (30).

Abstract: A valve train includes a camshaft which has a cam group having a firing cam and a braking cam. A first cam follower is assigned to the firing cam with the first cam follower being provided in a firing mode for actuating a gas exchange valve. A second cam follower is assigned to the braking cam which is provided in a braking mode for actuating the gas exchange valve. A changeover device is provided to changeover between the firing mode and the braking mode. The camshaft has a separate switching cam which, in at least one operating mode, is provided to act directly on a switching element of the changeover device and which is provided for a direct changeover between the firing mode and the braking mode.

Abstract: A method for operating a reciprocating internal combustion engine in an engine braking mode includes, in a working cycle of the engine braking mode, a first outlet valve of a first cylinder is closed for a first time, then opened for a first time, and subsequently closed for a second time, and then opened for a second time, in order to thereby discharge gas that has been compressed in the first cylinder from the first cylinder by a cylinder piston. The outlet valve is held open after the first opening and prior to the second closing long enough for the cylinder to be filled with gas that flows out of a second cylinder via at least one outlet channel, where when the engine braking mode is activated, at least one camshaft for activating at least one gas exchange valve of the reciprocating internal combustion engine is adjusted.