Abstract: A method of operating a motor vehicle media playback device that plays media data files stored on a media memory connected to the media playback device. The media playback device reads data file names or sizes of the data files stored on the media memory, determines media data test values, looks these up in a media data test value storage area of the media playback device and, if one or several media data test values are not found, selects metadata about the media data file, from these generates a dataset and stores it a second storage area, the media data test value being stored in the media data test value storage area and linked with the dataset. If a test value is found, the pertinent dataset is selected from the second storage area and used to produce the selection list shown to a user.

Abstract: An electromagnetic camshaft-adjuster device having an armature unit (14, 42) drivable along an axial direction in reaction of a current feed of a stationary inductor unit (10), which for interacting with an adjusting unit (16, 48) causing adjustment of a camshaft of an internal combustion engine is configured with a slide and/or tappet unit, wherein on and/or in the armature unit and/or the adjusting unit, a permanent magnet element (20, 44) is provided and the inductor unit and the armature unit are at least partially received in a housing or supporting unit, and wherein the supporting unit is associated with a configured stationary magnetic field detection element (22, 38) preferably for contactless magnetic interaction with the permanent magnet element, which is configured so that in a current feed condition and a non current feed condition the inductor unit an axial position of the armature unit and/or the adjusting unit can be determined electronically by evaluating a magnetic field detection signal of t

Abstract: A vehicle seat includes a pad of a seat cushion and/or of a backrest, a massage device having a plurality of pressurizable elements integrated into the pad in order to influence the contour of the seat and each of which can be controlled separately, and a control device for controlling the massage device, wherein, in addition to the massage device, a seat climate control system can also be controlled by the control device.

Abstract: The invention relates to a fuel cell (1) with a membrane electrode assembly (2). The membrane electrode assembly (2) is disposed between two bipolar plates (5, 6) and connected to a sealing element (3). The sealing element (3) and the bipolar plates (5, 6) contact each other with the formation of an abutment region (10). A sliding surface (11) is provided in the abutment region (1), by means of which the membrane electrode assembly (2) disposed between the two bipolar plates (5, 6) can be impacted with a shear stress (15) upon compression of the two bipolar plates (5, 6). The invention further relates to a fuel cell stack with such a fuel cell (1) and to a method for sealing a fuel cell (1).

Abstract: A hybrid motor vehicle device with a data input unit, which has at least one operating element for a user input of at least one drive distance parameter, and with a calculating unit, which is provided to adapt a hybrid operating strategy to the at least one drive distance parameter. The calculating unit in at least one hybrid operating mode is provided to assign the at least one operating element to a destination-independent input function of the at least one drive distance parameter characterizing a predicted drive distance.

Abstract: A method for controlling a powertrain system includes monitoring output power of the energy storage device, modifying a preferred electric power limit when the output power of the energy storage device transgresses a trigger power limit, and determining the power constraint of the first power actuator based on the estimated output power of the energy storage device when the output power of the energy storage power transgresses the preferred power limit.

Abstract: A hybrid powertrain system includes an engine and a torque actuator coupled to a driveline to transfer tractive power to a wheel including a friction brake. A method includes monitoring an operator braking request and determining a request for regenerative braking torque. Operation of the torque actuator to react tractive power is inhibited when a fault is detected in the monitored request for regenerative braking torque and achieved regenerative braking torque.

Abstract: A hybrid transmission includes a torque machine and an energy storage device connected thereto. The hybrid transmission is operative to transfer power between an input member and an output member and the torque machine in a continuously variable operating range state.

Abstract: A powertrain system includes an engine coupled to an input member of a transmission device operative to transmit torque between the input member and a torque machine and an output member. The torque machine is connected to an energy storage device. A method for controlling a powertrain system includes monitoring a temperature of the energy storage device, selecting a candidate powertrain system operating point, determining an output power from the energy storage device associated with the candidate powertrain system operating point, determining a power loss for operating the powertrain system at the candidate powertrain system operating point, and determining operating costs for operating the powertrain system at the candidate powertrain system operating point associated with the power loss and based upon the temperature of the energy storage device.

Abstract: In a method and apparatus for calibrating a position sensor mounted on the shaft of a permanent magnet synchronous motor, to control the position of a rotor of the permanent magnet synchronous motor relative to a magnetic field produced by a stator of the permanent magnet synchronous motor, a DC test current is supplied to stator windings of the permanent magnet synchronous motor to generate a definite magnetic field. The motor speed caused by the DC test current is adjusted to zero by modifying the rotor position; and the position measured by the position sensor at zero motor speed relative to the magnetic field is used to calibrate the position sensor.

Abstract: A pressure vessel for the storage of pressurized gaseous hydrogen includes a liner which defines an interior for the accommodation of the gaseous hydrogen and a wrapping encompassing the liner which gives the pressure vessel its dimensional stability. In order to prevent a discharge of gaseous hydrogen from the wrapping of the pressure vessel at a high rate if the pressure vessel is discharged after a prolonged downtime, the wrapping of the pressure vessel is designed to be at least partially gas-permeable, so that the gas penetrating through the liner can escape continuously through the wrapping of the pressure vessel.

Abstract: In a method for operating a spark ignition engine, wherein the inlet valves of the spark ignition engine are closed very early or very late, and a combustion air flow which is supplied to the spark ignition engine is compressed by means of a charger, and, under full load operation, the inlet valves are closed either early or late to avoid knocking of the engine, a partial flow of re-circulated exhaust gas is supplied to the combustion air flow supplied to the engine also during full load engine operation.

Abstract: In a group transmission having a number of countershafts, wherein three input constants are provided on a transmission input shaft for driving a countershaft such that the group transmission is of very short construction, the transmission input shaft is connectable to an intermediate shaft for direct power transmission, with the countershaft being disconnectable in the direct gear in order to avoid drag losses.

Abstract: A seat system for the interior of a motor vehicle, such as a driver's cab of a truck, has a vehicle seat that is movable from a home position, set on a seat support on the vehicle, into at least one further position. The vehicle seat is separable from the seat support and has a roller element device by which the vehicle seat can be moved into a position separated from the seat support. The seat support can include at least one coupling element for a connection line, with the coupling element being connectable to a coupling element on the vehicle seat.

Abstract: A fuel cell system has at least one fuel cell, a hydrogen storage tank in which hydrogen is stored at a pressure above atmospheric and which communicates via a hydrogen supply line with an anode chamber of the fuel cell. An anode circuit, via which unreacted hydrogen is able to be recirculated from a region downstream of the anode chamber into the hydrogen supply line, is provided. At least one pumping device is provided between the outlet of the anode chamber and its inlet in the anode circuit and/or the hydrogen supply line. Between the hydrogen storage tank and the anode chamber, a turbine is provided, which supplies at least a portion of the power required for driving the pumping device.

Abstract: A powertrain system includes an engine coupled to an input member of a transmission operative to transmit power between the input member, a torque machine and an output member. The torque machine is connected to an energy storage device. The engine is selectively operative in engine states comprising an engine-on state and an engine-off state. A method for controlling a powertrain system includes determining a first power range for output power of the energy storage device, commanding the engine to transition from a first engine state to a second engine state, and expanding the first power range of the energy storage device and controlling the torque machine based upon the expanded power range of the energy storage device during the transition from the first engine state to the second engine state.

Abstract: In a method for the diagnostics of an internal combustion engine exhaust gas system that includes a particle filter, first and second sets of value vectors are determined, each including associated values for absolute pressure upstream and downstream of the particle filter, a differential pressure determined from the values of the absolute pressure, an exhaust gas volume flow through the particle filter, and a temperature of the exhaust gas volume flow. After a temperature-standardization of the pressure values, characteristics for dependence of the pressure values are generated from temperature-standardized values of the first set of value vectors and possibly stored as reference characteristics. By comparing temperature-standardized values for the absolute pressure on the inlet and outlet sides of the particle filter and the differential pressure of the second set of value vectors with reference characteristics, flow anomalies can be determined in the exhaust gas system.