Abstract: An electrical machine with a stator component and a rotor component, wherein the stator component carries the winding of the electrical machine, which has a number of coils. An electronic power unit is provided to control the electrical machine. To obtain an electrical machine, which has a long service life but does not occupy much space, the stator component has two or more separate windings to form two or more electrical sub-machines. The electrical machine can be used to advantage as a starter-generator in commercial vehicles and busses. An improved electrical system is also described.

Abstract: In an engine having a crankshaft and a camshaft, the current angular position of a rotor fixed to the crankshaft is detected, and a top dead center (TDC) position of the crankshaft is determined based on the current angular position of the rotor, wherein the TDC position is one of an ignition top dead center (ITDC) and a gas transfer top dead center (GTDC). This determination may be made using a learning routine the first time the engine is started. The camshaft angle is then determined based on the TDC value and the current rotor position, and transmitted to a control unit for the engine. The current angular position of the rotor and the camshaft angle are stored in a memory unit when the engine stops, for use the next time the engine is started.

Abstract: Electrical machine having an electrical component, which has a rotor component and a stator component and is arranged inside a housing. The housing has a first housing wall which surrounds the electrical component in the circumferential direction, with the housing having an accommodation space which extends radially outward from the first housing wall from the electrical component with respect to the rotation axis of the rotor component. The individual components of the power electronics for controlling the electrical machine are arranged inside the accommodation space.

Abstract: A drive system for a motor vehicle includes a drive shaft and an electric machine operatively connected to the shaft for rotating the shaft and obtaining electric energy during rotation of the drive shaft. The electric machine includes a stator arrangement and a rotor arrangement which can be rotated with the aid of the drive shaft and is operated by permanent magnet. A heat transfer arrangement arranged in the drive system for bringing the rotor arrangement to a desired operating temperature and/or to maintain the desired operating temperature.

Abstract: A cooling arrangement for an electrical machine—for example, a permanent-field synchronous machine of a vehicle. The electrical machine is connected to the engine block of the vehicle. In order to ensure cost-effective cooling of the electrical machine, the electrical machine includes a support element, and the engine block includes a cooling element. At least a region of the electrical machine is connected via the support element to the cooling element of the engine block such that the heat generated during operation of the electrical machine dissipates thermally into the engine block.

Abstract: A drive system for a motor vehicle includes a drive shaft with a flywheel mass arrangement provided thereon, an electric machine for driving the drive shaft and/or obtaining electric energy from the rotating drive shaft. The electric machine has a stator arrangement and a rotor arrangement which can be rotated by the drive shaft. The rotor arrangement is connected via the flywheel mass arrangement to the drive shaft. Furthermore, the rotor arrangement is connected to the flywheel mass arrangement via a connecting region having a higher resistance to thermal conduction than at least one of the regions that adjoins the connecting region.

Abstract: A power electronics device for controlling an electric machine, for example a permanently excited synchronous machine includes a plurality of capacitors and power semiconductors connected to a bus bar. To measure currents through the bus bar, the bus bar includes at least one portion with a shaped section. This at least one portion comprises an essentially U-shaped configuration. A sensor of a current-measuring device is provided in the vicinity of the at least one portion to measure the current flowing therethrough. The sensor is designed to measure an electric and/or magnetic field in the bus bar and is in turn connected to an evaluation device. The sensor and/or the evaluation device are disposed on at least one control printed circuit board of the power electronics device, which is arranged underneath the bus bar.

Abstract: A vibration damping system for a drive system of a motor vehicle includes an electric machine controllable by a control device for exerting a counter-torque on a rotating constructional group. A deflection mass arrangement is arranged at the rotating constructional group having at least one deflection mass and a deflection path associated with the at least one deflection mass and along which the deflection mass can move. The deflection path associated with the at least one deflection mass has a vertex area and deflection areas proceeding from the vertex area. The vertex area is an area with the greatest radial distance of the deflection path from an axis of rotation of the rotating constructional group.

Abstract: A stator for an electrical machine includes a stator yoke and a plurality of stator coils arranged on the stator yoke. An interconnection arrangement is arranged on one end face of the stator yoke. The interconnection arrangement has connecting conductors which are electrically insulated from one another. The connecting conductors are arranged concentrically with respect to one another and each have a different diameter. The connecting conductors have connections for the ends of the stator coils and for connection to the electrical machine. To minimize the space requirement of the stator and simultaneously allow the stator coils to be automatically interconnected in an automated manner, the interconnection arrangement is arranged inside an area bounded by the stator coils. Furthermore, the connections for the ends of the stator coils include connection projections designed such that they project outward at an angle to the respective connecting conductor to attach the stator coil ends.

Abstract: A drive arrangement for a motor vehicle includes an internal combustion engine with a crankshaft which is selectively connectable to an output drive shaft via an interposed clutch system. The clutch system has at least two flywheel masses which are rotatable relative to each other. A first flywheel mass comprises at least one primary flange which is permanently connected to the crankshaft. The clutch system also includes an electric machine which has a rotor with a rotor carrier, the electric machine being arranged in the clutch system so that the primary flange is part of the rotor carrier.