Abstract: An electric motor includes a stator and rotor. The stator includes a stator core defining a stator bore, and a plurality of windings having end turns extending from the stator core. This includes a central region configured to be disposed in the stator bore, and first and second end regions extending from the central region and aligned with the end turns of the plurality of windings. The rotor defines a cooling bore in fluid communication with a low-pressure cooling fluid source and includes a plurality of cooling jets in fluid communication with the cooling bore and disposed in the first and second end regions. The plurality of cooling jets extends radially outward such that each cooling jet is configured to pull cooling fluid through the cooling bore and eject cooling fluid toward the end turns in response to centrifugal force caused by rotation of the rotor within the stator bore.

Abstract: Described is a heating plate having a substrate made of metal, a heating layer and an insulation layer which is arranged between the heating layer and the substrate. It is provided according to this disclosure that the insulation layer bears an electrically conductive shielding layer and that the shielding layer is covered by a second insulation layer on which the heating layer lies. In addition, a flow heater having such a heating plate is disclosed.

Abstract: A stator for an electric machine comprises a cylindrical core defining an inner cylindrical surface and an outer cylindrical surface with a plurality of slots formed between the inner cylindrical surface and the outer cylindrical surface. Windings are positioned on the cylindrical core. The leads of the windings include a plurality of inner leads associated with conductors in an inner layer of the slots and a plurality of outer leads associated with conductors in an outer layer of the slots. A bus bar assembly includes a plurality of inner bus bars and a plurality of outer bus bars, the plurality of inner bus bars connected to the plurality of inner leads, and the plurality of outer bus bars connected to the plurality of outer leads. The plurality of outer bus bars are positioned radially outward from the end turns of the windings and radially inward from the outer cylindrical surface.

Abstract: An entryway system includes a divided volute turbocharger having variable turbine geometry (VTG). The turbocharger includes a turbine housing, first and second volutes separated by a wall having a first and second tongue, and a turbine housing outlet. The system also includes a turbine wheel disposed in the turbine housing and a vane ring disposed in the turbine housing between the turbine wheel and the volutes. The system includes design modifications of one or more of the VTG components and/or locations of such components to manipulate the aerodynamic forces and/or subsequent mechanical loads in the VTG mechanism of the entryway system to mitigate VTG component wear during normal usage.

Abstract: The invention relates to a hybrid power drive system, comprising: an internal combustion engine having a crankshaft; a first electric motor (14), wherein the first electric motor (14) is an outer rotor electric motor, and comprises an outer rotor (14.2) that is rigidly connected to the crankshaft and rotates together with the crankshaft; a transmission (15) comprising an input shaft (20); and a clutch (18) that is provided between the first electric motor (14) and the transmission (15), and is connected to the input shaft (20) of the transmission. The clutch (18) is configured to be capable of switching between the following positions: an engagement position where the clutch (18) is engaged with the outer rotor (14.2); and a separation position where the clutch (18) is separated from the outer rotor (14.2). The present system is simple in structure, high in efficiency, and low in manufacturing and maintenance costs.

Abstract: A stator for an electric machine includes a core and a multi-phase winding arrangement positioned on the core. Each phase of the winding arrangement includes a plurality of parallel paths defining a plurality of poles for the electric machine. Each parallel path includes a plurality of coils positioned on the core, each coil defined by coil legs and end turns. The coil legs include left legs and right legs extending through the slots of the core. The left legs and right legs of each coil are connected by first end turns at one end of the core and second end turns at an opposite end of the core. Each pole of the electric machine is associated with a pole slot set comprised of multiple slots on the stator core. For each pole slot set, legs for each parallel path extend through one of the slots of said pole slot set.

Abstract: A recirculation fan turbocharger assembly (23) recycles hydrogen and supplies air in a fuel cell system. The assembly (23) includes a fan (25), a compressor (27), and an electric drive (31) and/or a turbine (29). The fan (25) has an impeller (255) which is designed to convey a hydrogen containing recycle stream (250) to a fuel cell unit (1). The compressor (27) has a compressor wheel (275) which is designed to compress an air stream (270) for a fuel cell unit. The compressor wheel (275) and the impeller (255) are coupled to one another in a rotationally fixed manner. The electric drive (31) and/or a turbine (29) is/are designed to drive the impeller (255) and the compressor wheel (275) simultaneously.

Abstract: A bulk capacitor assembly for an inverter includes a stacked busbar, the stacked busbar including a first direct current (DC) busbar and a second DC busbar; one or more first capacitors on a first side of the stacked busbar, the one or more first capacitors electrically connected to the first DC busbar and the second DC busbar; and one or more second capacitors on a second side of the stacked busbar, the first side being opposite to the second side, the one or more second capacitors electrically connected to the first DC busbar and the second DC busbar.

Abstract: A system comprises an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a galvanic isolator separating a high voltage area from a low voltage area; a low voltage phase controller in the low voltage area, the low voltage phase controller configured to receive a pulse width modulation (PWM) signal from an inverter controller and adjust the received PWM signal based on a feedback signal; and a high voltage phase controller in the high voltage area, the high voltage phase controller configured to receive the adjusted PWM signal from the low voltage phase controller, provide the adjusted PWM signal to a phase switch, and provide the feedback signal based on an on-time measurement of the phase switch.

Abstract: A rotor assembly includes a shaft defining a lubricant inlet channel for receiving a lubricant and a lamination stack. The lamination stack is rotatably coupled to the shaft, extends between first and second lamination stack ends, and defines a lubricant cooling channel in fluid communication with the lubricant inlet channel. The rotor assembly also includes a first end cap adjacent to the first lamination stack end and a second end cap adjacent to the second lamination stack end. One of the first end cap and the second end cap defines an end cap inlet at a first radial distance from the shaft, a lubricant outlet channel defined to extend at least partially radially inward toward the shaft, and an end cap outlet at a second radial distance from the shaft which is less than the first radial distance for expelling the lubricant.

Abstract: A system comprises: one or more point-of-use controllers configured to: assert a command-on signal to load a first turn-on gate driver profile; control, based on the loaded first turn-on gate driver profile, a gate driver to begin a first phase of a turn-on operation; receive a first power switch signal based on one or more of a detected voltage or a detected current; perform a comparison of the received first power switch signal to a first turn-on threshold value; load a second gate turn-on driver profile when the comparison indicates the first power switch signal is greater than the first turn-on threshold value; and control, based on the loaded second turn-on gate driver profile, the gate driver to end the first phase of the turn-on operation and begin a second phase of the turn-on operation.

Abstract: A system includes: an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a power module including: a first phase switch including one or more first phase power switches on a first side of a substrate; and a second phase switch including one or more second phase power switches on a second side of the substrate opposite to the first side.

Abstract: A system may include a capacitor assembly, the capacitor assembly including: a planar busbar, the planar busbar including a first direct current (DC) busbar and a second DC busbar, one or more first capacitors on a first side of the planar busbar, the one or more first capacitors including a first bobbin with a positive end facing a first direction with respect to the planar busbar; and one or more second capacitors on the first side of the planar busbar, the one or more second capacitors including a second bobbin with a positive end facing a second direction with respect to the planar busbar, wherein the one or more first capacitors are alternately arranged with the one or more second capacitors with respect to the planar busbar.

Abstract: A system includes an inverter including: a point-of-use controller for a power module, the point-of-use controller including: a positive voltage connection configured to receive a positive control voltage from a high-voltage controller; a command connection configured to receive a command from the high-voltage controller; a message connection configured to send and receive a message to and from the high-voltage controller; a negative voltage connection configured to receive a positive control voltage from the high-voltage controller; a north gate connection configured to output a north gate control signal to a north group of one or more switches; a south gate connection configured to output a south gate control signal to a south group of one or more switches; a north sense connection configured to connect to a first portion of a sensing trace; and a south sense connection configured to receive a second portion of the sensing trace.

Abstract: A system for an electric vehicle includes: an inverter housing including an inner wall, a first channel, and an exterior surface; and a heatsink coupled to the exterior surface of the inverter housing, the heatsink including a second channel; wherein the first channel in the inverter housing and the second channel in the heatsink define a cooling circuit, and wherein the first channel is fluidly connected to the second channel to pass a coolant through the cooling circuit.

Abstract: Disclosed is a turbine arrangement for a supercharging device. The turbine arrangement comprises a turbine housing, a turbine wheel and a guide device. The turbine housing defines a turbine spiral and a turbine outlet. The turbine wheel is arranged in the turbine housing between the turbine spiral and the turbine outlet. The guide device comprises a carrier ring and multiple guide blades. The guide blades are arranged on the carrier ring fixedly in a predetermined orientation. The guide device is arranged in an inflow channel between the turbine spiral and the turbine wheel such that, during operation, fluids are conducted from the turbine spiral through the inflow channel over the guide blades onto the turbine wheel.

Abstract: A stator arrangement for an electric machine has a stator and an interconnection module. The stator includes a stator core on which a stator winding is arranged. The interconnection module electrically interconnects winding wire ends of the stator winding. The interconnection module is positioned on the stator on an end side. The interconnection module includes integral electrical terminal conductors which are embedded at least partially in a body of an electrically insulating material. The terminal conductors each form a terminal contact to which an external power supply and/or control of the stator arrangement can be connected, and a winding contact which is electrically conductively connected to a winding wire end.

Abstract: A stator comprises a stator core having stator teeth, a first end cap and second end cap which each have a base and a winding wire support, wherein the end caps are arranged on the same stator tooth so that the bases are directed toward front sides of the stator tooth, and a stator winding having a wire which is wound over the end caps around the stator tooth. The winding wire support has two projections which project at opposite sides over the base. The wire extends over the projections of the end caps. An insulation film comprises front edges and extends between one of the projections of the first end cap and the opposite projection of the second end cap. The film is arranged between the wire and the stator tooth. The wire extends over the projections without applying any force action to the front edges of the film.

Abstract: A flow heater is described that has a housing in which a flow channel extends from a liquid inlet to a liquid outlet. The heater has a metal plate along which the flow channel runs, and the metal plate carries a heating resistor. Provision is made for the metal plate to carry a corrugated sheet that protrudes into the flow channel and has openings through which the liquid that is to be heated can pass.

Abstract: A system for an electric vehicle may include a housing, a cover configured to couple to the housing, the cover including an opening; a capacitor disposed within the housing, wherein the capacitor is mounted directly to the cover; and a heatsink disposed within or adjacent to the opening of the cover, wherein the heatsink is thermally connected to the capacitor.