Abrégé

The present invention relates to an electrical drive system for or in a motor-vehicle, having at least one multi-phase electric machine, which has a double rotor, wherein the double rotor is made from flux-guiding material made of solid material, with a three-stage or multi-stage inverter circuit for driving the electric machine, which has: a controllable three-stage or multi-stage inverter coupled to the electric machine on the output side, which is designed to supply the electric machine with an AC voltage, and an operating mode setting device, which is designed to operate the inverter as a function of at least one parameter influencing the overall efficiency of the electrical drive system, selectively in a three-stage or multi-stage operation or in a two-stage operation.

Classes IPC  ?

• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
• H02M 7/487 - Onduleurs bloqués au point neutre
• H02P 25/022 - Moteurs synchrones
• H02P 27/14 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions avec au moins trois niveaux de tension

Abrégé

The present invention relates to a stator for a radial flux double-rotor machine, in particular for a wheel hub motor. The stator includes a stator core; a winding which is placed in the stator core and is designed to be self-supporting for torque support of the stator, wherein the winding protrudes beyond the stator core at least one axial end; and a support device which is arranged axially offset with respect to the stator core and is designed for form-fitting engagement with the winding at the at least one axial end for torque support.

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 9/22 - Dispositions de refroidissement ou de ventilation par un matériau solide conducteur de la chaleur s'encastrant dans, ou mis en contact avec, le stator ou le rotor, p. ex. des ponts de chaleur
• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• H02K 15/085 - Exécution des enroulements par pose des conducteurs dans ou autour des parties formant le noyau par pose des conducteurs dans des stators encochés
• H02K 16/02 - Machines avec un stator et deux rotors

Abrégé

The present invention relates to a sensor arrangement for a synchronous machine designed as a dual-rotor motor, in particular for an electric drive of an electric vehicle, having at least one angle transducer, wherein when mounted on the dual-rotor motor, the angle transducer is designed to determine the rotor angle, wherein the angle transducer has at least one sensor element which is designed as a magnetic field sensor and has a measuring input and at least two coupling elements which are coupled to the measuring input and protrude from the sensor element, wherein each coupling element is made from continuously flux-carrying material and each has a measuring tap at an end opposite the sensor element for tapping a magnetic flux. The invention also relates to a dual-rotor motor module having such a sensor arrangement.

Classes IPC  ?

• H02K 29/08 - Moteurs ou génératrices à dispositifs de commutation non mécaniques, p. ex. tubes à décharge ou dispositifs à semi-conducteurs avec des dispositifs détecteurs de la position utilisant des dispositifs à effet magnétique, p. ex. dispositifs à effet Hall ou magnéto-résistances

Abrégé

The present invention relates to an electric drive system for or in a motor vehicle, having: at least one synchronous machine, which has a double rotor and a distributed winding placed in a stator core, wherein the double rotor is constructed from flux-carrying material made of solid material, wherein the winding is designed to be self-supporting for torque support; and at least one three-stage or multi-stage inverter circuit that is coupled to the synchronous machine at a load output and that is designed to convert a DC voltage received on the supply side into an AC voltage via which the synchronous machine can be driven via the load output, wherein the inverter circuit has a controllable three-stage or multi-stage inverter.

Classes IPC  ?

• H02K 16/02 - Machines avec un stator et deux rotors
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 3/14 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches avec des conducteurs transposés, p. ex. des conducteurs torsadés
• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
• H02K 21/14 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
• H02K 21/22 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant autour des induits, p. ex. volants magnétiques

Abrégé

A three-level or multi-level inverter circuit for activation of a multiphase electric machine for an electric drive system, with two supply connections couplable to first and second supply potential of voltage supplies, a load output comprising a load output connection for each phase of the electric machine, a controllable three-level or multi-level inverter between the supply connections and the load output designed to convert a direct voltage received on the supply side into an alternating voltage for driving an electric machine, with an operating mode setting device designed to change the inverter between three-level or multi-level operation and two-level operation in dependence upon overall efficiency of the electric drive system, wherein the overall efficiency is a function of the detected phase current of the electric machine and at least one further parameter and/or property of the electric machine which influence the overall efficiency.

Classes IPC  ?

• H02M 7/487 - Onduleurs bloqués au point neutre
• B60L 50/51 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible caractérisée par des moteurs à courant alternatif
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont

Abrégé

The invention relates to a stator for a radial-flow double rotor machine, in particular for a wheel hub motor, comprising: a stator core; a winding which is placed in the stator core and which is designed to support a torque of the stator in a self-supporting manner, said winding protruding beyond the stator core at at least one axial end; and a support device which is offset axially relative to the stator core and which is designed to engage with the winding in a form-fitting manner at the at least one axial end in order to support the torque; wherein the winding is made of interconnected conductor rods and has a radially inner layer of helically arranged conductor rods and a radially outer layer of oppositely helically arranged conductor rods, and each of the conductor rods is offset at a first conductor rod end and is designed to be non-offset at a second conductor rod end. The first conductor rod ends of the conductor rods of the radially outer layer are arranged such that the offset is oriented radially inwards, and the first conductor rod ends of the conductor rods of the radially inner layer are arranged such that the offset is oriented radially outwards. The invention also relates to a method for producing a stator and to a radial-flow double rotor machine.

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 16/02 - Machines avec un stator et deux rotors
• H02K 15/04 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques d'enroulements avant leur montage dans les machines

Abrégé

The invention relates to a double-rotor radial-flux machine, in particular for a wheel hub drive, comprising a stator which has a stator core and a torsionally rigid winding received therein, the conductor rods of said torsionally rigid winding running in a first rotational direction in a helical manner in a radially inner part of the stator and in the opposite second rotational direction in a helical manner in a radially outer part of the stator; and a double rotor which has an inner rotor and an outer rotor, wherein the inner rotor and outer rotor have a respective annular main part, which is designed to conduct a flux, and a common central axis, a respective plurality of permanent magnets are secured to the annular main part, the cross-section of each permanent magnet is paired with a specified angular segment of the annular main part, and the permanent magnets are designsed and are arranged on the respective annular main part such that the axial course of the specified angular segment is offset in the circumferential direction so that the permanent magnets generate a field which runs diagonally to the central axis. The field of the inner rotor runs diagonally in a first direction which is oriented in the first rotational direction, and the field of the outer rotor runs diagonally in a second direction which is oriented in the second rotational direction.

Classes IPC  ?

• H02K 3/04 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 16/02 - Machines avec un stator et deux rotors
• H02K 21/12 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants
• H02K 21/14 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant à l'intérieur des induits
• H02K 21/22 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant autour des induits, p. ex. volants magnétiques

Abrégé

The present invention relates to an electric drive system for or in a motor vehicle, having: at least one synchronous machine, which has a double rotor and a distributed winding placed in a stator core, wherein the double rotor is constructed from flux-carrying material made of solid material, wherein the winding is designed to be self-supporting for torque support; and at least one three-stage or multi-stage inverter circuit that is coupled to the synchronous machine at a load output and that is designed to convert a DC voltage received on the supply side into an AC voltage via which the synchronous machine can be driven via the load output, wherein the inverter circuit has a controllable three-stage or multi-stage inverter.

Classes IPC  ?

• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
• H02K 21/12 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants

Abrégé

The present invention relates to an electrical drive system for or in a motor-vehicle, having at least one multi-phase electric machine, which has a double rotor, wherein the double rotor is made from flux-guiding material made of solid material, with a three-stage or multi-stage inverter circuit for driving the electric machine, which has: a controllable three-stage or multi-stage inverter coupled to the electric machine on the output side, which is designed to supply the electric machine with an AC voltage, and an operating mode setting device, which is designed to operate the inverter as a function of at least one parameter influencing the overall efficiency of the electrical drive system, selectively in a three-stage or multi-stage operation or in a two-stage operation.

Classes IPC  ?

• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
• H02K 1/00 - Détails du circuit magnétique
• H02M 1/00 - Détails d'appareils pour transformation
• H02P 25/022 - Moteurs synchrones
• H02P 27/14 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions avec au moins trois niveaux de tension

Abrégé

The present invention relates to a stator for a double-rotor radial-flux machine, in particular for a wheel hub motor, having: a stator core; a winding which is placed in the stator core and is designed to be self-supporting for torque support of the stator, wherein the winding protrudes beyond the stator core at at least one axial end; and a carrier device which is arranged offset axially with respect to the stator core and is designed for form-fitting engagement with the winding at the at least one axial end for torque support. The present invention furthermore relates to a corresponding double-rotor radial-flux machine, in particular for a wheel hub drive, and to a method for producing a stator for a double-rotor radial-flux machine.

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
• H02K 16/00 - Machines avec plus d'un rotor ou d'un stator
• H02K 3/47 - Enroulements à espace d'air, c.-à-d. enroulements ne comportant pas de noyau de fer
• H02K 15/085 - Exécution des enroulements par pose des conducteurs dans ou autour des parties formant le noyau par pose des conducteurs dans des stators encochés

Abrégé

The present invention relates to a three- or multi-level inverter circuit for driving a polyphase electric machine for an electric drive system, comprising two supply connections which can be coupled to a first and a second supply potential of a voltage supply, comprising a load output which has a load output connection for each phase of the electric machine and which can be coupled to the electric machine, comprising a controllable three- or multi-level inverter which is arranged between the supply connections and the load output and which is designed to convert a DC voltage received on the supply side into an AC voltage for driving an electric machine which is connected to the load output, and comprising an operating mode setting device which is designed to move the inverter from three- or multi-level operation to two-level operation, and vice versa, depending on a total efficiency of the (entire) electric drive system, wherein the total efficiency is a function of the detected phase current of the electric machine and at least one further parameter, which influences the total efficiency, and/or one further property, which influences the total efficiency, of the electric machine.

Classes IPC  ?

• H02P 23/00 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par un procédé de commande autre que la commande par vecteur
• H02P 25/022 - Moteurs synchrones
• H02P 27/14 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions avec au moins trois niveaux de tension
• H02M 7/487 - Onduleurs bloqués au point neutre
• H02M 1/00 - Détails d'appareils pour transformation
• H02K 21/00 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents
• H02K 16/02 - Machines avec un stator et deux rotors

Produits et services

Motors, drives and controls for the operation of machines and motors, and machine parts for driving devices for machines, generators of electricity, motors, electric, other than for land vehicles, electric propulsion mechanisms for water vehicles, for aircraft engines, drives, including motors and engines, other than for land vehicles, drives, including motors and engines, for water vehicles, drives, including motors and engines, for aircraft, drives, including engines and thrusters, for spacecraft [rockets]; driving devices for machines; generators of electricity; motors, electric, other than for land vehicles; electric propulsion mechanisms for water vehicles; aircraft engines; parts and accessories for all the aforesaid goods, included in this class; drives, including motors and engines, other than for land vehicles; drives, including motors and engines, for water vehicles; drives, including motors and engines, for aircraft; drives, including engines and thrusters, for spacecraft [rockets]. Parts and fittings for vehicles; drives, including motors and engines, for land vehicles; electric drives for land vehicles; electric motors for automobiles; electric motors for two-wheeled vehicles; drives, including motors and engines, for land vehicles for the transportation of people and goods, included in this class; parts and accessories for all the aforesaid goods, included in this class. Cleaning and maintenance, as well as installation and repair, in relation to motors, drives and controls for the operation of machines and motors, and machine parts for driving devices for machines, generators of electricity, motors, electric, other than for land vehicles, electric propulsion mechanisms for water vehicles, aircraft engines, drives, including motors and engines, other than for land vehicles, drives, including motors and engines, for water vehicles, drives, including motors and engines, for aircraft, drives, including engines and thrusters, for spacecraft [rockets], driving devices for machines, generators of electricity, motors, electric, other than for land vehicles, electric propulsion mechanisms for water vehicles, aircraft engines, parts and accessories for motors, drives and controls for the operation of machines and motors, and machine parts for driving devices for machines, generators of electricity, motors, electric, other than for land vehicles, electric propulsion mechanisms for water vehicles, aircraft engines, drives, including motors and engines, other than for land vehicles, drives, including motors and engines, for water vehicles, drives, including motors and engines, for aircraft, drives, including engines and thrusters, for spacecraft [rockets], driving devices for machines, generators of electricity, motors, electric, other than for land vehicles, electric propulsion mechanisms for water vehicles, aircraft engines, drives, including motors and engines, other than for land vehicles, drives, including motors and engines, for water vehicles, drives, including motors and engines, for aircraft, drives, including engines and thrusters, for spacecraft [rockets], parts and fittings for vehicles, drives, including motors and engines, for land vehicles, electric drives for land vehicles, electric motors for automobiles, electric motors for two-wheeled vehicles, drives, including motors and engines, for land vehicles for the transportation of people and goods, included in this class, parts and accessories for vehicles, drives, including motors and engines, for land vehicles, electric drives for land vehicles, electric motors for automobiles, electric motors for two-wheeled vehicles, drives, including motors and engines, for land vehicles for the transportation of people and goods; repair or maintenance of electric motors. Product research and development services; development, programming and implementation of software; computer hardware development; scientific and technological services; engineering; testing, authentication and quality control; design services; product research and development; all the aforesaid services in relation to motors, drives, including drives for vehicles, and controls for the operation of drives, machines and motors. Licensing industrial property rights; licensing of industrial property rights; licensing of technology; patent licensing; licensing of computer programs; licensing of software.