Abstract: In a method for monitoring an exhaust gas purifying component with gas storage capability for purifying exhaust gases from an internal combustion engine, the exhaust gas purifying component comprises a gas storage material which changes from a first state into a second state upon storage of the gas. A temperature change of the exhaust gas purifying component and/or of the gas storage material, substantially based on a heat tonality of the modification transition, is measured and evaluated.

Abstract: A method for controlling the exhaust gas temperature of a fuel cell system, the fuel cell system including a fuel cell having an anode and a cathode, and further including a fuel supply line for supplying H2-containing fuel to the anode, and an oxidant supply line for supplying O2-containing gas to the cathode, and at least one discharge line for discharging anode gas and/or cathode gas from the fuel cell. The discharge line is connected by at least one humidifier with the fuel supply line and/or with the oxidant supply line in such a manner that the fuel and/or the oxidant is/are humidified with moisture from the exhaust gas. The exhaust gas temperature is controlled by changing the temperature of the fuel in the fuel supply line and/or that of the oxidant in the oxidant supply line, and by transferring heat in the humidifier from the fuel and/or the oxidant to the exhaust gas.

Abstract: The invention relates to a battery comprising at least one temperature control unit that is configured as a cooling plate, and at least two galvanic individual cells, with a metal housing each, wherein the metal housing has an extension, which can be accommodated at least partially in a respective receptacle of the temperature control unit.

Abstract: In a method for controlling shifting in a motor vehicle having an internal combustion engine and an automatic transmission, intermediate gas is automatically applied for reducing and/or compensating for an abrupt shift when downshifting. In a first phase, wherein the transmission is in the hydraulic down time thereof, the actual torque provided by the engine is slowly increased, until a torque required by the transmission is achieved. Subsequently, in a second phase, wherein the actual torque of the engine is less than the target torque, a throttle valve is opened further. In a subsequent third phase, in which the actual torque of the engine has achieved the target torque required for synchronization, a late ignition angle is set.

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.

Abstract: In an internal combustion engine including cylinders arranged in a housing, a crankshaft, pistons disposed in the cylinders so as to be movable by the crankshaft, and a device for varying a compression ratio of the internal combustion engine wherein the device, for varying the compression ratio, includes an adjusting structure which varies the effective length of a connecting rod of the piston, the lift of the crankshaft or the position of the cylinder with respect to the center of the crankshaft, an operating structure is provided by rotation of which the position of the adjusting structure can be controlled, and a drive device for controlling the operating structures contains a coupling mechanism with an integrated brake function, whereby h the adjusting structure can either be placed in operative connection with the crankshaft or can be blocked.

Abstract: In an internal combustion engine comprising an exhaust gas turbocharger, including a turbine with at least two inlet passages arranged in the exhaust gas tract of the internal combustion engine, via which exhaust gas from the internal combustion engine can be supplied to a turbine wheel of the turbine, and a valve arrangement being arranged in to the exhaust gas tract to the turbocharger to control the supply of exhaust gas to the inlet passages of the turbine, a valve and turbine inlet passage configuration is selectable providing for a maximum braking power with low thermal load.

Abstract: A weld rivet joint between one or more components and a base component is provided. The one or more components have a hole through which a weld rivet having a head projects with its shank. The shank is welded to the surface of the base component by its end face and is plastically deformed. The weld rivet has a shank that is shorter than its head diameter, and in a transition region between head and shank a continuous annular recess is provided for the accommodation of material displaced in the riveting process and/or for tolerance compensation.

Abstract: In the operation of a fuel cell of a fuel cell system, water contained in the exhaust gas is stored in a water tank. The water tank has means for discharging the water in increments or portions. For example, the water can exit as droplets through the porous floor surface of the water tank, and be carried off by the driving wind while the vehicle is driving; or it can be collected at a wall of a water tank and fed into lines, returning it to the exhaust gas flow as droplets.