公开(公告)号：US20250167636A1

公开(公告)日：2025-05-22

申请号：US18938718

申请日：2024-11-06

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H02K11/21 ,  H02K11/042 ,  H02K19/02

Abstract: An externally excited synchronous machine is provided having a stator and a rotor rotatable relative to the stator, wherein the rotor has an exciter winding for providing a rotor field during operation of the synchronous machine, wherein the synchronous machine has an inductive transmission system for wirelessly transmitting electrical power to the exciter winding for operating the exciter winding, wherein the synchronous machine further has a capacitive transmission arrangement with a fixed first transmission device or means and a second transmission device or means opposite the first transmission device or means and arranged on an end face of the rotor for data transmission between a rotor-external control device of the externally excited synchronous machine and a rotor-side control unit. A motor vehicle and a method for operating the externally excited synchronous machine is also provided.

公开(公告)号：US20240372444A1

公开(公告)日：2024-11-07

申请号：US18651267

申请日：2024-04-30

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H02K11/33 ,  H02K9/22

Abstract: A method for producing an electrical circuit device for operating an externally excited electric machine is provided and may comprise positioning and attaching at least one power module at a marked attachment position on an outside of a heat sink, positioning at least one exciter module on the outside of the heat sink, attaching the exciter module to the outside of the heat sink. The at least one power module may include power module-side connecting pins. The at least one exciter module may include exciter module-side connecting pins. During the positioning, at least one heat sink-side positioning section may be inserted into or may receive at least one exciter module-side positioning section. After attaching the power module and the exciter module to the heat sink, a control board may be plugged onto the power module-side and the excited module-side connecting pins pointing in the same direction.

公开(公告)号：US20240072713A1

公开(公告)日：2024-02-29

申请号：US18455519

申请日：2023-08-24

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H02P29/00 ,  H02M3/156

CPC classification number: H02P29/00 ,  H02M3/156

Abstract: An exciter circuit for an externally excited synchronous machine, comprising two voltage supply terminals for a voltage supply, two exciter current terminals configured to be connected to an exciter winding of the externally excited synchronous machine, and a bridge circuit coupled to the voltage supply terminals, a controller, a protective arrangement at a side of the exciter circuit with the exciter current terminals, wherein the protective arrangement includes a semiconductor switch switched in series with the exciter winding and a freewheeling path running in parallel with the exciter winding and having a connection point between one of the exciter current terminals and the semiconductor switch, wherein the freewheeling path has a diode which, in operation, is blocking in an exciter current flow direction, and a conversion resistor, wherein the controller, in operation, opens the semiconductor switch when a de-excitation signal is present.

公开(公告)号：US20230262945A1

公开(公告)日：2023-08-17

申请号：US18169047

申请日：2023-02-14

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H05K7/20 ,  H02P27/05

CPC classification number: H05K7/2089 ,  H02P27/05 ,  H02P2207/05

Abstract: An electrical switching device for operating an electrical machine comprises an inverter circuit, an exciter circuit and a cooling device, wherein the exciter circuit is formed by at least one circuit module, wherein the circuit module is thermally coupled to the cooling device and comprises a discharge circuit, connected to the inverter circuit and adapted to discharge at least one energy accumulator of the inverter circuit.

公开(公告)号：US20250112214A1

公开(公告)日：2025-04-03

申请号：US18890473

申请日：2024-09-19

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H01L25/16 ,  H01L23/00 ,  H01L23/367

Abstract: A method for producing a circuit arrangement for an electric machine is provided. The circuit arrangement has at least one power input which is connectable to an electric energy storage device, at least one power semiconductor which is arranged in a power semiconductor module, and at least one power output which is connectable to an excitation coil of the electric machine, wherein the power input is electrically connected to a first power terminal of the power semiconductor module via an intermediate circuit of the circuit arrangement, and the power output is electrically connected to a second power terminal of the power semiconductor module via a control board of the circuit arrangement. A power semiconductor module for a circuit arrangement for an electric machine, and to a corresponding circuit arrangement is also provided.

公开(公告)号：US20240266981A1

公开(公告)日：2024-08-08

申请号：US18430403

申请日：2024-02-01

Applicant: AUDI AG

Inventor： Cornelius RETTNER ,  Daniel RUPPERT ,  Adrian AMLER

IPC: H02P27/06 ,  B60L15/00

CPC classification number: H02P27/06 ,  B60L15/007

Abstract: A method for operating an inverter with a plurality of half bridges, each including two switching devices that connect respective bridge center points of the half bridges to DC voltage potentials, wherein switching takes place between different inverter states, wherein at least one of the switching devices has variable switching behavior and includes a parallel connection of two semiconductor switches that are configured differently from one another, wherein, for at least two temporally successive switching operations of the at least one of the switching devices from a conducting switching state to a blocking switching state, activating the semiconductor switches using first activation patterns, and/or, for at least two temporally successive switching operations of the at least one of the switching devices from the blocking switching state to the conducting switching state, activating the semiconductor switches using second activation patterns.

公开(公告)号：US20240244806A1

公开(公告)日：2024-07-18

申请号：US18414194

申请日：2024-01-16

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H05K7/20 ,  H02K19/36 ,  H02K19/38 ,  H02M7/00

CPC classification number: H05K7/20927 ,  H02K19/36 ,  H02K19/38 ,  H02M7/003

Abstract: A power electronic arrangement for an externally excited synchronous machine is disclosed and may comprise a heat sink, at least one inverter power module including an inverter and at least one exciter power module including an exciter circuit. The at least one inverter power module may be mounted in a predefined relative inverter position and orientation on the heat sink by material bonding The heat sink and the exciter power module may each include positioning devices configured to interlock such that a desired relative exciter power module position and orientation relative to the inverter power modules is produced by interlocking the positioning devices of the heat sink and the exciter power module.

公开(公告)号：US20240206134A1

公开(公告)日：2024-06-20

申请号：US18539104

申请日：2023-12-13

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H05K7/20 ,  H01L23/373 ,  H01L23/473 ,  H02M7/00 ,  H05K7/14

CPC classification number: H05K7/209 ,  H01L23/3735 ,  H01L23/473 ,  H02M7/003 ,  H05K7/1432 ,  H05K7/20927

Abstract: A power electronic arrangement for an electric machine, includes an inverter, power electronic components accommodated in at least one power module, an intermediate circuit connected to the inverter across connection contacts of the at least one power module and having at least one intermediate circuit energy accumulator, and a heat sink to which the at least one power module is thermally connected for cooling, the connection contacts are arranged at a margin and flat against a substrate carrying one or more power semiconductors, and are thermally coupled to the heat sink via the substrate, wherein the at least one intermediate circuit energy accumulator is connected electrically and thermally to the connection contacts to cool the at least one intermediate circuit energy accumulator.

公开(公告)号：US20220381806A1

公开(公告)日：2022-12-01

申请号：US17824777

申请日：2022-05-25

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: G01R19/165 ,  G01R19/25 ,  G01D21/02 ,  H02M1/32 ,  H01L23/34 ,  H03K17/0812

Abstract: A method determines a current flowing through at least one switching element of an electrical circuit arrangement. When the switching element is turned on the current flows through a switchable portion of the switching element. The switching element is associated with a temperature sensor and a voltage sensor. The temperature sensor measures a temperature of the switching element and the voltage sensor measures a voltage drop across the switchable portion of the switching element. The temperature sensor and the voltage sensor are connected to a computing device. The computing device determines a current value of the current based on the measured temperature and the measured voltage drop.

公开(公告)号：US20210175144A1

公开(公告)日：2021-06-10

申请号：US17072373

申请日：2020-10-16

Applicant: AUDI AG

Inventor： Daniel RUPPERT

IPC: H01L23/367 ,  H01L23/40

Abstract: An arrangement which has at least one semiconductor module made of silicon carbide, a driver circuit for the at least one semiconductor module, and a cooling system, wherein the at least one semiconductor module and the driver circuit are arranged adjacent to one another, wherein the driver circuit is connected to the cooling system.