Abstract: In a hybrid transmission for a motor vehicle with three differential drive units (D1 to D3), two electric machines (E1, E2) and four shift elements (C1 to C4), the hybrid transmission (HG) includes a fifth shift element (C5) by which two transmission elements of the first differential drive unit (D1) can be coupled thereby achieving an improved operating efficiency and smaller continuous electric power requirements.

Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having an transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, which means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.

Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having an transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, which means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.

Abstract: Hybrid drive containing a clutch between an engine power-output shaft (4) and a transmission power-input shaft (16) arranged axially with respect to the said power-output shaft; a first electric machine (6) connected to the engine power-output shaft (4) in a torque-transmitting manner; a second electric machine (14) connected to the transmission power-input shaft (16) in a torque-transmitting manner; preferably also a torsional vibration damper (8), which is connected in a rotationally fixed manner to the engine power-output shaft (4), the first-electric machine (6) being connected to the engine power-output shaft (4) in a torque-transmitting manner, ahead of the torsional vibration damper (8) in terms of the direction in which the torsional vibration damper (8) transmits the power of the propulsion drive engine. The parts of the hybrid drive are nested axially one inside the other.

Abstract: A motor vehicle drive arrangement has a locomotive drive train and at least one liquid pump capable of being driven by the latter. During a standstill in rotation or during very slow rotation of the locomotive drive train, the pump is capable of being driven by an electric motor instead of by the locomotive drive train. Beyond a defined minimum rotational speed of the locomotive drive train, the liquid pump is capable of being driven by the latter instead of by the electric motor. At least one free-wheel is provided for this purpose.

Abstract: In a method for operating a fuel cell system comprising at least one fuel cell and at least one cooling circuit with devices for influencing the cooling of the at least one fuel cell, a medium which flows through the cooling circuit is cooled by a cooling heat exchanger of the cooling circuit. The operating temperature of the fuel cell is controlled by the cooling, as a function of an ambient temperature of the cooling heat exchanger, such that the heat from the fuel cell is removed at a temperature which is as low as possible.

Abstract: The invention relates to a vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.

Abstract: A vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.

Abstract: In a hybrid drive for a vehicle, an exhaust gas turbocharger is coupled to an electrical machine. The machine is actuated by an electronic control device to limit the supercharge pressure of the exhaust gas turbocharger.

Abstract: A fibrous-structure electrode plate has a metal thickness which increases continuously towards the current discharge lug and the resultant low-loss current carrying. To produce the fibrous-structure electrode framework plates according to the invention, textile substrate can be reinforced by electrodeposition. For the subsequent use of the textile substrate which has been reinforced by electrodeposition as an electrode framework of fibrous structure, a diaphragm system is introduced into the electrodeposition bath between each anode and the premetallized web of a textile substrate which is to be reinforced by electrodeposition. In this way, it is possible to distribute the metal applied to the substrate, specifically without previously cutting the web to size.

Abstract: A motor vehicle drive arrangement has a locomotive drive train and at least one liquid pump capable of being driven by the latter. During a standstill in rotation or during very slow rotation of the locomotive drive train, the pump is capable of being driven by an electric motor instead of by the locomotive drive train. Beyond a defined minimum rotational speed of the locomotive drive train, the liquid pump is capable of being driven by the latter instead of by the electric motor. At least one free-wheel is provided for this purpose.

Abstract: Hybrid drive containing a clutch between an engine power-output shaft (4) and a transmission power-input shaft (16) arranged axially with respect to the said power-output shaft; a first electric machine (6) connected to the engine power-output shaft (4) in a torque-transmitting manner; a second electric machine (14) connected to the transmission power-input shaft (16) in a torque-transmitting manner; preferably also a torsional vibration damper (8), which is connected in a rotationally fixed manner to the engine power-output shaft (4), the first electric machine (6) being connected to the engine power-output shaft (4) in a torque-transmitting manner, ahead of the torsional vibration damper (8) in terms of the direction in which the torsional vibration damper (8) transmits the power of the propulsion drive engine. The parts of the hybrid drive are nested axially one inside the other.

Abstract: A fuel cell system and method for supplying electrical devices with electric energy in a vehicle wherein, to increase the efficiency of the power generation, the fuel cell system is supplied with atmospheric oxygen from the compressed air system. Additionally, a compressed air reservoir or a compressor for ambient air is provided in order to supply the fuel cell system with atmospheric oxygen.

Abstract: A process for the removal of galvanic electrolytic residues from galvanically reinforced fiber structure frames, where the fiber structure frame is produced through chemical metallization of a textile substrate based on fleeces or felts made of synthetic fibers and then through galvanic reinforcement of the metallized textile substrate in a galvanic bath containing a galvanic electrolyte. The invention provides that the galvanic electrolytic residues are removed by suction from the fiber structure frame. The fiber structure frame then makes contact at least once under high pressure with the wash liquid in a wash station, and subsequently the wash liquid is removed by suction from the fiber structure frame. In order to remove by suction, the galvanic electrolytic residues or the wash liquid, a belt-shaped porous supporting device is inserted between the suction port and a main area of the fiber structure frame.

Abstract: A serial hybrid drive has an internal combustion engine, a generator coupled mechanically to the internal combustion engine, an energy store coupled electrically to the generator, and at least one electric drive motor electrically connected to the generator and the energy store. The internal combustion engine/generator unit is operated along an operating characteristic whose power corresponds to the temporally smoothed power requirement of the electric drive motor, and the internal combustion engine is always operated at or near full load. In such case, the energy store has an energy storage capacity of at most a few kilowatt hours and a high power density, and compensates for the short-term power differences between the instantaneous power requirement of the electric drive motor and the power output by the internal combustion engine/generator unit and corresponding to the temporally smoothed power requirement of the electric drive motor.

Abstract: The invention relates to a vehicle having a transmission for transmitting a torque from a drive machine to drive wheels, with the transmission having a transmission output shaft and a transmission input shaft, in which the torque can be transmitted from the drive machine to the transmission output shaft, and having an electrical machine which has a rotor and a stator, with means being provided in order to connect the electric-motor torque of the electrical machine optionally to the transmission input shaft or to the transmission output shaft.

Abstract: In a hybrid drive for a vehicle, an exhaust gas turbocharger is coupled to an electrical machine. The machine is actuated by an electronic control device to limit the supercharge pressure of the exhaust gas turbocharger.

Abstract: A fibrous-structure electrode plate has a metal thickness which increases continuously towards the current discharge lug and the resultant low-loss current carrying. To produce the fibrous-structure electrode framework plates according to the invention, textile substrate can be reinforced by electrodeposition. For the subsequent use of the textile substrate which has been reinforced by electrodeposition as an electrode framework of fibrous structure, a diaphragm system is introduced into the electrodeposition bath between each anode and the premetallized web of a textile substrate which is to be reinforced by electrodeposition. In this way, it is possible to distribute the metal applied to the substrate, specifically without previously cutting the web to size.

Abstract: In a drive assembly for auxiliaries of a motor vehicle, such as fan drives, an electric motor serves as a clutch whose stator is non-rotatably connected with the driven shaft and whose rotor speed can be controlled with respect to the stator by controlling the stator excitation.

Abstract: An apparatus and method for starting a vehicle which is driven by an electric drive unit supplied with electrical energy from a fuel cell. A compressor is arranged in the feed line of the fuel cell for the oxidant mass flow and is driven by an electric motor supplied with voltage from the fuel cell itself. For the purpose of starting the fuel cell, a starter motor is provided for driving the compressor which is fed from a 12 V starter battery. In addition, a safety interrogation is initiated before starting the vehicle. The fuel cell is not run up to a prescribed no-load power with the aid of the starter motor until successful termination of the safety interrogation. The drive unit is then released after this no-load power has been reached.