Abstract: A control device for an inverter has a DC voltage input and a power unit with three half-bridges each formed by two power switching elements, the control device being arranged to driving the power switching elements in a normal operating mode for converting a DC voltage applied to the DC voltage input into a polyphase AC current provided at an AC current output. The control device is adapted to evaluate a signal state of a signal indicating a disconnection of a DC voltage source from the DC voltage input and to control the power switching elements in dependence on a result of the evaluation for alternately adopting a first switching pattern causing DC braking and a second switching pattern causing freewheeling.

Abstract: A method for manufacturing a stator for an electric machine, having the following steps: inserting a cast body with a nozzle from a first side of the stator into the stator, inserting a cast counterbody from a second opposing side of the stator into the stator, casting the stator with thermoplastic, thermosetting plastic, or resin by means of the nozzle, curing the thermoplastic, thermosetting plastic, or resin, wherein following the curing a cast-on piece of the thermoplastic, thermosetting plastic, or resin is sheared off using a rotational movement of the cast body or cast counterbody.

Abstract: Shaft for an electric machine, includes a core seat for a laminated core and two shaft ends extending axially outwardly from the core seat in opposite directions, wherein the core seat has at least one core seat portion extending in the axial direction with a polygonal profile for forming a polygonal connection to the laminated core.

Abstract: A stator for an electric machine is disclosed. The stator has a plurality of pins arranged in slots in the stator on concentric circles at different distances from a center point, each concentric circle forming a layer. Each of six pins in different layers are connected to one another in series and form a winding. A first pin of the winding in a first slot in the 6n-4 layer, n being a natural number, a second pin of the winding in a second slot in the 6n-5 layer, a third pin of the winding in the first slot in the 6n-2 layer, a fourth pin of the winding in the second slot in the 6n-3 layer, a fifth pin in the first slot in the 6n layer, and a sixth pin of the winding in the second slot in the 6n-1 layer.

Abstract: Stator housing for an electric machine, includes a plurality of axially extending main channels, wherein pairs of adjacent main channels are connected by deflection channels to form a meandering cooling path for a coolant, and a plurality of connection channels that connect each pair of adjacent main channels in a fluid conductive manner at an axial position between the deflection channels.

Abstract: A stator housing for an electric machine, includes a cooling channel through which a cooling fluid may flow and which has a plurality of main portions extending in the axial direction or in the circumferential direction, wherein adjacent main portions are connected by deflection portions of the cooling channel in such a way that a meandering cooling path is formed, wherein a guide element is formed within each of the deflection portions and separates the cooling path into two cooling sub-paths.

Abstract: A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n?1 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n?3 layer, a fourth pin of the winding is located in the second slot in the 4n?3 layer.

Abstract: A temperature sensor (116) comprises an electrical circuit (204) including a thermistor (206) intended to be placed next to an object (112); a temperature measurement module (222) configured for determining a measured temperature (T_M) of the thermistor (206) from a resistance of the thermistor (206); and a command module (224) configured for providing a command (C) to the electrical circuit (204) for modifying the electrical circuit (204) in a way that changes a current (IT) flowing in the thermistor (206). The temperature sensor (116) further comprises a thermal loss determination module (226) configured for determining a thermal loss (L) of the thermistor (206) from the thermistor measured temperature (T_M) and the command (C); and a temperature estimation module (228) configured for estimating a temperature (T0_E) of the object (112) from the thermistor measured temperature (T_M) and from the thermal loss (L) of the thermistor (TH).

Abstract: A stator for an electric machine includes a plurality of pins, which are arranged on concentric circles at different distances to a stator center in slots in the stator, and each concentric circle forms a layer. In each case four pins in different layers are serially connected to one another and form a winding, a first pin of the winding is located in a first slot in the 4n?3 layer, wherein n is an integer, a second pin of the winding is located in a second slot in the 4n?2 layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, and a fourth pin of the winding is located in the second slot in the 4n?1 layer.

Abstract: A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots, and each concentric circle forms a layer. In each case, four pins in different layers are serially connected to one another and form a winding. A first pin of the winding is located in a first slot in the 4n?1 layer, wherein n is an integer. A second pin of the winding is located in a second slot in the 4n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator. A third pin of the winding is located in a third slot in the 4n?2 layer, wherein the third slot lies adjacent to the first slot. A fourth pin of the winding is located in a fourth slot in the 4n?3 layer.

Abstract: A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively connected to one another in series and form a winding, a first pin of the winding is located in a first slot in the 4n?3 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n?2 layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, a fourth pin of the winding is located in the second slot in the 4n?1 layer.

Abstract: A stator for an AC motor, includes windings of a first layer, which extend over a first region of the stator and are connectable to a first phase, and windings of a second layer, which extend over a second region of the stator and are connectable to a second phase, wherein the first region is offset relative to the second region and at least one overlap region is formed which is smaller than the individual regions, and wherein a temperature detection unit is arranged in the overlap region and is designed to measure the temperature of the windings in the overlap region.

Abstract: A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width modulated switching signals (15) with a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to determine the carrier frequency depending on operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) and, as the rotation speed increases and the magnitude of the torque falls, to increase the carrier frequency within an operating region (22) that extends within a rotation speed interval with a lower rotation speed limit (23) differing from zero and with an upper rotation speed limit (24) lying in a power-limiting operating region (21) or field-weakening operating region.

Abstract: A stator for an electric machine having a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots in the stator, and each concentric circle forms a layer, where four pins in different layers are connected to one another in series and form a winding. A first pin of the winding is located in a first slot in the 4n-3 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n-2 layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, and a fourth pin of the winding is located in the second slot in the 4n-3 layer.

Abstract: An electric machine (1), comprising a housing (2), in which a stator (3) and a rotor (4), which is rotatable relative to the stator (3), are accommodated, a cooling device with a cooling channel (5) through which a coolant can flow and which extends from an inlet (7), through the housing (2) and through the rotor (4), to an outlet (6), and a sealing device (21) for sealing off the rotor (4) with respect to an interior space (22) of the housing, wherein a reservoir (12) for coolant leakage that occurs during a rotation of the rotor (4) is formed between the sealing device (21) and the housing (2). Additionally described are a drivetrain and a vehicle (17) having such an electric machine (1), and a method for operating the electric machine (1).

Abstract: An electric machine (1), comprising: a housing (2), in which a stator (3) and a rotor (4), which is rotatable relative to the stator (3), are accommodated, a cooling device with a cooling channel (5) through which a coolant can flow and which extends from an inlet (7), through the housing (2) and through the rotor (4), to an outlet (6), and a sealing device (18) for sealing off the rotor (4) with respect to an interior space (19) of the housing, wherein the sealing device (18) has a radial shaft sealing ring (11) which surrounds the rotor (4) and which delimits a reservoir (12) for coolant leakage. Additionally described are a drivetrain for a vehicle (14) having such an electric machine (1), and a method for operating the electric machine (1).

Abstract: An electric machine (1), comprising: a housing (2), in which a stator (3) and a rotor (4), which is rotatable relative to the stator (3), are accommodated, a cooling device with a cooling channel (5) through which a coolant can flow and which extends from an inlet (7), through the housing (2) and through the rotor (4), to an outlet (6), and a sealing device (21) for sealing off the rotor (4) with respect to an interior space (22) of the housing, wherein an end section of the rotor (4) is surrounded by a sleeve (10), which is surrounded by a radial shaft sealing ring (11) of the sealing device (21). Additionally described are a drivetrain for a vehicle (17), a vehicle (17) of said type, and a method for operating the electric machine (1).

Abstract: Power converter device for a vehicle, includes a cooling structure through which a cooling medium can flow and an intermediate circuit capacitor with a busbar arrangement. The busbar arrangement is thermally conductively connected to the cooling structure for the purpose of dissipating heat from the intermediate circuit capacitor at least in sections by means of a heat-conducting device.

Abstract: A rotor (1) for an electric machine (16) which has at least two poles and an even number of N?6 stacked rotor modules (2a-2f), wherein the rotor modules (2a-2f) for each pole have a magnet component (3a-3f; 3a-3h), and magnet components (3a-3f; 3a-3h) which embody the same pole form a corresponding magnet component arrangement (4a, 4b, 4f), wherein the first to Nth rotor module (2a-2f) are arranged in ascending sequence of their designation in the axial direction, wherein each magnet component (3a-3f; 3a-3h), belonging to one of the magnet component arrangements (4a), of the first to Nth rotor module (2a-2f) is arranged in each case at a stagger angle ?1 . . .

Abstract: The invention relates to a stator device (2) for an electric machine (1), comprising—a stator body (3), —a plurality of cooling channels (9a-9x) that are designed to cool the stator body (3) and extend along the stator body (3) in an axial direction, and —re) a cooling fluid connection device (7) that delimits a connection channel (12) axially outwards and in a radial manner, said connection Cie channel extending in the circumferential direction, wherein the axial end of each cooling channel opens into the connection channel, Got and the connection channel extends radially inwards further than the cooling channels (9a-9x).