Abstract: Rotor for an electrical machine has a rotor core with a plurality of radially outwardly extending rotor legs, a number of exciter windings corresponding to the number of rotor legs, each wound around one of the rotor legs, and a separating device, having a number of separating portions corresponding to the number of rotor legs, which are arranged between a respective pair of adjacent exciter windings and extend axially between two opposing end faces of the rotor, a first annular connecting portion which connects together the separating portions at one of the end faces, and a second annular connecting portion which connects together the separating portions at the other of the end faces.

Abstract: The invention specifies a rotor (1, 1a . . . 1f) for an electrical machine (14), which rotor comprises a rotor shaft (2, 2a . . . 2f), a rotor laminated core (3), which sits on the rotor shaft (2, 2a . . . 2f) with a press fit, a first rotor holder (5a . . . 5c), which is arranged adjacent to the rotor laminated core (3) on a first side thereof, and a second rotor holder (6a . . . 6d), which is arranged adjacent to the rotor laminated core (3) on a second, opposite side thereof. Furthermore, the rotor comprises a first shaft securing ring (7), which sits in a first groove of the rotor shaft (2, 2a . . . 2f) and axially secures the rotor laminated core (3). In addition, the invention specifies an electrical machine comprising a stator (15) and a rotor (1, 1a . . . 1f) of said type, and a vehicle (16) with at least two axles, at least one of which is driven. The driving of the vehicle (16) is performed at least partially or temporarily by the electrical machine (14) of the abovementioned type.

Abstract: A method for determining an offset of an angular position encoder is associated with a rotor of an electric machine, wherein a reference offset of a reference angular position encoder of a reference electric machine is known at a reference rotational speed and a reference current with a reference phase angle and a reference absolute value. The method includes the steps of applying a current having the reference absolute value; setting a phase angle of the current to achieve the reference rotational speed; comparing the phase angle with the reference phase angle and the reference offset; and determining the offset on the basis of this comparison.

Abstract: A circuit arrangement (1), in particular for an electrically driven motor vehicle, has at least one bus bar (5) which is connected electrically to a supplier (2) and which is connected to a first consumer (3) at a first transfer point (6) and to a second consumer (4) at a second transfer point (7). Both the first and the second transfer point (6, 7) are formed as flexible contact points.

Abstract: A rotor for an electric machine, includes a rotor lamination stack divided into a plurality of sectors, in each of which there is arranged a permanent magnet assembly which comprises two permanent magnets positioned in a V-shape symmetrically with respect to a plane of symmetry dividing the sector into two half-sectors, wherein an outer radius of the rotor lamination stack in a particular sector has a pair of local minimum values, which are formed symmetrically to one another with respect to the plane of symmetry in a half-sector of the sector.

Abstract: A drive device for an electrically drivable vehicle includes a housing body with a first fastening device, a cover which, after release of a second fastening device interacting with the first fastening device for fastening the cover to the housing body, is movable from a first position, in which the cover covers live components of the drive device during operation of the drive device, into a second position, in which the components are exposed, and a first connection device, to which a second connection device is connectable for establishing an electrically conductive connection and/or a data connection. The first fastening device and the first connection device are arranged such that in the first position access to the second fastening means in its position fastening the cover is only possible after the second connection device has been released from the first connection device.

Abstract: A stator (1) for an electric motor, including; a plurality of pins (11, 12, 13, 14, 21, 22, 23, 24, 31, 32, 33, 34) which are arranged on at least two concentric circles; and an interface (10, 20, 30) with at least one contact face (19, 29, 39), which is connected to two electrically conductive legs (10a, 10b, 20a, 20b, 30a, 30b) and is supported by the legs, wherein the legs are connected to at least one pin on different concentric circles.

Abstract: Cooling device (15) for cooling semiconductor switching elements (10, 11), comprising a first wall (17) having a first side (18) for carrying the semiconductor switching elements (10, 11) and having a second side (19) being opposite the first side (18), a second wall (20) having a first side (21) that forms a main cooling channel (22) together with the second side (19) of the first wall (17) and having a second side (25) being opposite to the first side (21) of the second wall (20), and a third wall (23) that forms an auxiliary cooling channel (24) together with the second side (25) of the second wall (20), wherein the second wall (20) comprises a connection means (26) that connects the auxiliary cooling channel (24) with the main cooling channel (22) in a fluid-conductive manner.

Abstract: A rotor for an electric machine includes a sheet metal package formed from stacked electrical sheets and having magnet pockets arranged therein, a plurality of magnets of which at least one is inserted into each of the magnet pockets, a plurality of clearances which are each delimited by the magnets inserted into one of the magnet pockets and by the sheet metal package, a filling opening which is arranged on an axial side of the sheet metal package and through which a first of the clearances is exposed, and a venting opening which is arranged on the axial side and through which a second of the clearances is exposed. The outer end of the filling opening and/or the outer end of the venting opening are widened. Also described are an electric machine having the rotor, a vehicle having the machine and a method for producing the rotor.

Abstract: Stator housing for an electrical machine having an inlet and outlet for a cooling fluid, and a cooling duct formed between the inlet and the outlet through which the cooling fluid flows in a direction from the inlet to the outlet, is disclosed. The cooling duct has a first and a second heat transfer arrangement, which each extend along the direction of flow and are designed to transfer heat from the cooling fluid to the stator housing. The first heat transfer arrangement is arranged in a first section of the cooling duct and the second is arranged in a second section that is on the inlet side with respect to the first section. The first heat transfer arrangement in the first section creates a larger heat transfer area for the cooling fluid per unit of length based on the direction of flow than the second in the second section.

Abstract: The invention relates to an inverter (110) comprising: a power module (1161-3) having at least one semiconductor switch (Q, Q?), and a control device (120) configured to control the power module (1161-3) and to estimate an internal temperature (TJ) of the at least one semiconductor switch (Q, Q?) by means of a temperature model (122) being a polynomial of order three or more having, as arguments, operating parameters including: a switching frequency (FSW), a temperature (TS) of the power module (1161-3), an AC current (I) outputted by the power module (1161-3), and the DC voltage (Udc).

Abstract: An electrical device for a converter has at least one capacitor having a first connection and a second connection, a first busbar and a second busbar is disclosed. A respective busbar has a greater extension along a transverse direction than along a longitudinal direction, and has a greater extension along the longitudinal direction than along a vertical direction. The respective busbar has a first surface and a second surface which are opposite one other with respect to the vertical direction. The device also has a first contact-connection device electrically conductively contact-connected to the first connection and via which the first connection is electrically conductively connected to the first busbar, and a second contact-connection device electrically conductively contact-connected to the second connection via which the second connection is electrically conductively connected to the second busbar.

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) for driving switching elements (12) of the inverter (2), wherein the control device (8) is configured to determine a modulation type by means of which the pulse-width modulated switching signals (15) are generated depending on operating point information that describes an operating point defined by at least one operating parameter, and to use a first modulation type in at least one first operating region (21, 28, 30, 31) and a second modulation type in another operating region (32, 32a, 32b).

Abstract: Stator for an electrical machine, comprising a stator core with stator slots which are formed along an axial direction with respect to a center axis of the stator and are arranged in a manner distributed in a circumferential direction with respect to the center axis, a hairpin winding with a large number of hairpin element arrangements which are arranged in the stator slots and each emerge from the end side of the stator core, and at least one insulation apparatus with a body in which a large number of passage openings which are arranged in a manner distributed in the circumferential direction are formed; wherein a respective hairpin element arrangement passes through one of the passage openings and the insulation apparatus specifies a distance of the hairpin element arrangement from an edge of the stator slot which receives the hairpin element arrangement.

Abstract: An inverter device (1), comprising a first printed circuit board (2) on which a transformer (3) is arranged; a second printed circuit board (4) which is arranged parallel to the first printed circuit board (2) at a distance from the sides of the transformer (3); and a cover element (5) which is arranged between the printed circuit boards (2, 4) for the purpose of electromagnetic shielding and has a through opening (6) through which the transformer (3) passes; wherein the cover element (5) comprises a shielding unit (7) which surrounds the through opening (6) peripherally at least in some places and extends in the direction of the second printed circuit board (4).

Abstract: A transmission device (2) for an electrically driveable vehicle (38), comprising a transmission element (9), a parking lock (12), by means of which the transmission element (9) can be blocked and which has a parking lock actuator (14), a transmission housing (7), which encloses the transmission element (9) and the parking lock (12), a connection apparatus (15) with a cable arrangement (16) extending in the transmission housing (7) and a plug connector by which a first end of the cable arrangement (16) can be contacted from the exterior of the transmission housing (7), wherein a second end of the cable arrangement (16) is electrically connected to the parking lock actuator (14), and a pressure equalization apparatus, which runs through the plug connector (17) of the connection apparatus (15) and forms a gas-permeable connection between the interior of the parking lock actuator (14) and the exterior of the transmission housing (7).

Abstract: A guide device (1) for a cooling fluid flowing around winding heads (28) of an electrical machine (21), including a body (2), with a recess (4) delimited by an inner edge (3) for guiding through a shaft of the electrical machine (21), and a guide element (5), which protrudes from the body (2) in the axial direction and extends in the peripheral direction in a radial position lying between the inner edge (3) and an outer edge (6) of the body (2).

Abstract: A transmission device (1) for an electrically drivable vehicle (29), comprising a transmission element (2), a parking lock (6), by means of which the transmission element (2) can be blocked, a transmission housing (9), which encloses the transmission element (2) and the parking lock (6), a connection apparatus (10) with a cable arrangement (11) extending in the transmission housing (9) and to the first end of which a plug connector (12) is attached, the plug connector being arranged in a transmission housing opening (14) for contacting the cable arrangement (11) from the exterior of the transmission housing (9) and having contact elements (25) arranged in a plug connector housing (15), wherein a second end of the cable arrangement (11) is connected to the parking lock (6), wherein the plug connector (12) has at least one sealing means (18, 27) for preventing a lubricant from escaping through the transmission housing opening (14).

Abstract: A transmission device (1) for an electrically driveable vehicle (34), comprising a transmission element (2), a parking lock (6), by means of which the transmission element (2) can be blocked and which has a parking lock actuator (8), a transmission housing (9), which encloses the transmission element (2) and the parking lock (6), a pressure equalization apparatus (14), by means of which an interior of the parking lock actuator (8) is connected to an exterior of the transmission housing (9) in a gas-permeable manner, wherein the pressure equalization apparatus (14) has a lead-through element (16) which passes through a transmission housing opening (15), and a fluid guiding element (17), the first end of which is connected to the interior of the parking lock actuator (8) and the second end of which is connected to the lead-through element (16).

Abstract: A method determines a correction value for a control device for an electric machine, which describes an angular difference between a position of a d-axis of the electric machine and an actual position of the d-axis. The correction value is determined in a rotating state of a rotor of the electric machine as a function of a d voltage value describing a d component of a stator voltage specified by the control device in the initial configuration, of a q voltage value describing a q component of the stator voltage specified by the control device in the initial configuration, of a flux value describing a magnetic flux of the rotor, a speed value describing the speed of the rotor in the rotating state, and of a calibration value describing a speed-dependent voltage error of the d component of the stator voltage.