Abstract: A permanent magnet excited synchronous machine (1) with embedded magnets, which is particularly suitable for range extender generator. It includes stator (2) and rotor (3) being provided with exciter magnets (7). The rotor (3) has at least two rotor poles (4), each is provided with one exciter magnet (7). In order to increase the magnetic torque limit of the synchronous machine (1)—in each rotor pole (4) at least one, preferably several selective magnetic flux barriers, preferably as substantially radial slots (8) being parallel with the main pole flux is/are provided in the area of the pole shoe.

Abstract: Laminated rotor (21) assemblies for rotating electric machines such as hybrid synchronous motors (HSM) of vehicle drives, the rotor plates (26) of which have one or several recesses (29) as a flux barrier or magnet pocket, which comprise radially innermost and outermost edge sections as rounded transition regions from and to edge sections lying therebetween. Each of the rounded transition regions may be shaped at least approximately respectively according to a part of a curve (35) of second order. Between adjacent recesses (29), a respective oblique cross-piece (52) is provided, the center line (54) of which lies obliquely to the pole axis (30).

Abstract: Laminated rotor (21) assemblies for rotating electric machines such as hybrid synchronous motors (HSM) of vehicle drives, the rotor plates (26) of which have one or several recesses (29) as a flux barrier or magnet pocket, which comprise radially innermost and outermost edge sections as rounded transition regions from and to edge sections lying therebetween. Each of the rounded transition regions may be shaped at least approximately respectively according to a part of a curve (35) of second order. Between adjacent recesses (29), a respective oblique cross-piece (52) is provided, the center line (54) of which lies obliquely to the pole axis (30).

Abstract: A permanent magnet excited synchronous machine (1) with embedded magnets, which is particularly suitable for range extender generator. It includes stator (2) and rotor (3) being provided with exciter magnets (7). The rotor (3) has at least two rotor poles (4), each is provided with one exciter magnet (7). In order to increase the magnetic torque limit of the synchronous machine (1)—in each rotor pole (4) at least one, preferably several selective magnetic flux barriers, preferably as substantially radial slots (8) being parallel with the main pole flux is/are provided in the area of the pole shoe.

Abstract: The zero-voltage converter is able to perform at extremely high power levels and bares significant benefits to all levels; system, inverter and circuitry level. Power losses are avoided by using a new developed resonant topology. EMI problems are reduced by power module integrated capacitors as well as smart selection of the terminal technology and under full utilization of the analog components and their potentials. The power module developed for this specific application is designed under a maxim of gaining highest power density as well as lowest stray inductances. High switching frequencies enable even special electro motors with extremely low leakage inductance to perform well. This is in particular beneficial for ultra high speed drives or motors with a high pole pair number. The mechanical concept of the inverter can specifically be adopted to the referring vehicle and to its available installation space. Thus, also (hybrid) electrical vehicles can be designed based on such highly innovative conception.

Abstract: A current-energized synchronous motor (1) suitable in particular for vehicle drives. It includes a stator (2) and a rotor (3) carrying the energizer winding (7). The rotor (3) has at least two rotor poles (4) with one energizer winding (7) each. The rotor includes at least one selective magnetic flux barrier, in particular in the form of a radial slot (8) along the main axis (4A) of the rotor pole (4). This flux barrier is provided in each rotor pole (4) for increasing the reluctance moment of the current-energized synchronous motor (1).