Abstract: A determination of a quality of a reducing agent solution containing ammonia used to reduce nitrogen oxides involves actuating a metering unit that delivers metered quantities of reducing agent solution into an engine's discharged exhaust gas and determining an efficiency value that is at least correlated with the efficiency of the SCR catalytic converter and comparing the efficiency value to a predefinable limit value. If an efficiency value not corresponding to proper functioning of the SCR exhaust emission control system is identified by the comparison, a switch is made to a diagnostic mode in a second method step. If a predefinable deviation of the efficiency value from a limit value is identified after expiration of the second method step time period, a third method step is performed for conditioning the SCR catalytic converter. A fourth step involves an adaptation mode in which a deviation from the efficiency value is determined.

Abstract: A method for cooling a fuel cell (3) using a liquid cooling medium, wherein of the starting materials supplied to the fuel cell and the products discharged from the fuel cell, at least one is gaseous during at least one of the operating conditions. The cooling medium is conveyed through the fuel cell (3) by a coolant conveying device (11). The power consumption of the coolant conveying device (11) is compared to predefined reference values in order to detect gas in the liquid cooling medium by a deviation of the power consumption from the predefined reference values.

Abstract: A restraint device for a motor vehicle includes a support structure with a plurality of structural elements in which the support structure can be moved from a stowage position into a restraint position. The restraint device also includes a covering by means of which a restraint volume formed by the support structure in its restraint position is surrounded. At least one support element is provided by means of which at least one of the structural elements of the support structure is held in a predetermined form and/or position at least in the restraint position.

Abstract: A control housing module (1) for a combustion engine, with integrating and/or connecting and/or receiving structures for auxiliary components (2,3,4,5,6,7,8) and a rib structure. The control housing module (1) consists of a fibre-plastic composite, which has at least one insert (10) made from a flat fibre textile in a thermoplastic matrix. The rib structure made from injected reinforcing ribs (11,11a) is formed of a thermoplastic, which has short fibres made of a reinforcing material with a proportion by volume of at least 30%. The ribbing (11,11a) includes rib structures (11a) arranged according to the direction of force and regularly formed longitudinal, transverse and/or diagonal reinforcing ribs (11) that cross one another. A foam material is arranged in the spaces (13) between the ribs, the spaces being bordered by the ribs (11,11a).

Abstract: A method for the production of a connecting structure for a motor vehicle involves inserting two profile elements, connected to one another by a plastic joint element, into a tool and hardening in the tool. A fiber semi-finished product with respective receivers for corresponding connecting regions of the profile elements is produced. The connecting regions of the profile elements are connected to the respective receivers of the fiber semi-finished product. The plastic joint element is produced by injecting plastic in a transfer molding process into a forming region of the tool provided for this purpose.

Abstract: A turbocharging system of an internal combustion engine includes compressor of a turbocharger disposed on an intake passage of an internal combustion engine and a turbine disposed on an exhaust passage of the internal combustion engine. A bypass passage connects an upstream side and a downstream side of the turbine in the exhaust passage together. A wastegate valve, which is disposed on the bypass passage, opens and closes the bypass passage according to turbocharging pressure of the compressor. An accumulator, which accumulates exhaust gas pressure, is connected to a downstream side of the wastegate valve in the bypass passage. A recirculation passage connects the accumulator and an upstream side of the turbine together, and a recirculation valve, which opens and closes the recirculation passage based on an output request, is deposed on the recirculation passage.

Abstract: A drive authorization system for an electric drive includes a predefined number of field coils and a rotationally movable element. An evaluation and control unit for operation of the electric drive determines the current position of the movable element from several items of positional information, which can be made available by a predefined number of angle of rotation sensors. To implement an electronic immobilization function, positions, the number of the active rotation angle sensors, or both those positions and that number are made encodable. The evaluation and control unit decodes the encoded positional information of the active rotation angle sensors in order to determine the current position of the movable element. Operation of the electric drive is possible only after successful decoding of the positional information.

Abstract: In order to provide better monitoring for the side environment of a vehicle a lighting unit to light up a vehicle environment and a detection unit for detecting an object in the vehicle environment are provided. The lighting unit is automatically switched on if the detection unit has detected an object in the vehicle environment.

Abstract: In a method for operating an air-compressing fuel-injection internal combustion engine having an exhaust gas post-treatment system with a particle filter and a nitrogen oxide reduction catalytic converter, a plurality of internal combustion engine operating settings are provided, each having respective predefined values for predefined internal combustion engine operating parameters. A heating operating setting is set when the internal combustion engine is warming up, while a basic operating setting is set in the warmed-up state. When the temperature in the exhaust gas system exceeds a predefinable first value, the heating operating setting is changed over to the basic operating setting. In the warmed-up state, at least one further (third) operating setting, with an exhaust gas recirculation rate that is reduced compared to the basic operating setting, is provided in addition to the basic operating setting.

Abstract: The invention relates to a method and a device for operating a fuel cell system (1) having a recirculation blower (11) disposed in a fuel circuit of the fuel cell system (1) by means of which the fuel (BS) exiting the fuel cell system (1) on the anode side is resupplied, said blower being driven by an air-driven drive turbine (12), wherein the air-driven drive turbine (12) is impacted by compressed air (vL).

Abstract: An individual cell for a battery comprises an electrode stack disposed within a cell housing and a method for the production thereof. The individual electrodes, preferably electrode foils, are electrically connected to lead vanes, and at least electrodes of different polarity are separated and insulated from each other by a separator preferably a separator foil. Lead vanes of the same polarity are electrically connected to each other to form a pole. The lead vanes of a pole are electrically compressed with each other and/or welded to each other.

Abstract: A height adjustment mechanism for a vehicle seat includes an adjustment parallelogram. The adjustment parallelogram includes a seat frame part, an upper rail and lateral links connecting the seat frame part and the upper rail. A spindle drive can adjust the adjustment parallelogram such that a distance between the seat frame part and the upper rail is changed by changing a length of the spindle drive. The spindle drive connects two obliquely opposing corners of the adjustment parallelogram (1) together in a reinforcing manner.