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公开(公告)号：US11043879B2
公开(公告)日：2021-06-22
申请号：US16534217
申请日：2019-08-07
Applicant: Tau Motors, Inc.
Inventor： Matthew J. Rubin , Walter Wesley Pennington, III , Gregory Gordon Stevenson , Adam Daniel Ambrecht , Euzeli Cipriano dos Santos, Jr.
IPC: H02K11/028 , H02K1/02 , H02K1/16 , H02K1/24 , H02P23/14 , H02K3/28 , H02P27/14 , H02K11/30 , H02K3/50
Abstract: An electric motor has a stator defining multiple stator poles with associated electrical windings, and a rotor having multiple rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with an electrical conductivity higher than the rotor pole material. The flux barriers are electrically isolated from one another external to the ferromagnetic material. Eddy currents are induced in the flux barrier to cause destructive interference of an impending magnetic field, such that the flux barrier effectively acts to inhibit magnetic flux during motor operation, which in some cases will result in a repulsive force that will act to increase an induced motive force on the rotor poles.
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公开(公告)号：US20250125697A1
公开(公告)日：2025-04-17
申请号：US19002080
申请日：2024-12-26
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Matthias Preindl
IPC: H02K21/04 , H02K1/22 , H02P21/22 , H02P25/098
Abstract: A method of controlling an electric machine includes: energizing stator windings of a stator by a stator current, producing a stator magnetic field within the stator by the energized stator windings, modifying a corresponding rotor magnetic field within a ferromagnetic material within a rotor by the stator magnetic field, generating a force tangential to the rotor by a shift in the stator magnetic field, moving the rotor by the generated force tangential to the rotor, resisting a decay of a magnetic flux within the rotor by current within the rotor windings in response to the shift in the stator magnetic field, and achieving a target operational output of the electric machine. The stator magnetic field and the rotor maintain synchronicity with one another during operation of the electric machine.
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公开(公告)号：US12249874B2
公开(公告)日：2025-03-11
申请号：US18520022
申请日：2023-11-27
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Adam Daniel Ambrecht , Euzeli Cipriano dos Santos, Jr.
IPC: H02K11/02 , H02K1/02 , H02K1/16 , H02K1/24 , H02K11/028 , H02P23/14 , H02K3/28 , H02K3/50 , H02K11/30 , H02P27/14
Abstract: An electric motor has a stator defining multiple stator poles with associated electrical windings, and a rotor having multiple rotor poles. The rotor has flux barriers between adjacent rotor poles, the flux barriers each having a material with an electrical conductivity higher than the rotor pole material. The flux barriers are electrically isolated from one another external to the ferromagnetic material. Eddy currents are induced in the flux barrier to cause destructive interference of an impending magnetic field, such that the flux barrier effectively acts to inhibit magnetic flux during motor operation, which in some cases will result in a repulsive force that will act to increase an induced motive force on the rotor poles.
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公开(公告)号：US20240204622A1
公开(公告)日：2024-06-20
申请号：US18592660
申请日：2024-03-01
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Matthias Preindl
IPC: H02K11/042 , H02K1/14 , H02K1/24
CPC classification number: H02K11/042 , H02K1/14 , H02K1/24
Abstract: An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated rotor windings, wherein the rotor defines a field energizable by magnetic fields produced by the stator windings when receiving the stator current to produce relative motion between the rotor and the stator and wherein the rotor is maintained in synchronicity with the magnetic fields produced by the stator during operation of the electric machine. The electric machine also includes a rectification system configured control against an alternating current being induced in the rotor poles as the field is energized by magnetic fields produced by the stator windings when receiving the stator current.
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25.发明公开公开(公告)号：US20240195269A1
公开(公告)日：2024-06-13
申请号：US18279365
申请日：2022-03-04
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Ethan Bagget Swint , Gregory Gordon Stevenson , Michael Parker Owen , Anthony Da Costa , Matthew J. Rubin , Matthias Preindl
Abstract: A stator defines multiple stator poles with associated stator windings. A rotor defines multiple rotor poles with associated rotor windings configured to be energized substantially by the stator. The rotor defines a rotor field energizable by magnetic fields produced by the stator windings to produce relative force between the rotor and the stator. An active rectifier is conductively coupled to one or more first rotor windings. The active rectifier is configured to control a direction of current flow through the one or more first rotor windings responsive to a signal received wirelessly from the stator by one or more second rotor windings.
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Patent Agency Ranking
26.发明公开公开(公告)号：US20240186932A1
公开(公告)日：2024-06-06
申请号：US18279364
申请日：2022-03-04
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Ethan Bagget Swint , Gregory Gordon Stevenson , Anthony Da Costa , Michael Parker Owen , Matthew J. Rubin , Matthias Preindl
IPC: H02P25/03 , H02K1/26 , H02K11/042 , H02K19/26
CPC classification number: H02P25/03 , H02K1/26 , H02K11/042 , H02K19/26
Abstract: A stator defines multiple stator poles with associated stator windings. A rotor defines multiple fixed rotor poles with associated teeth with a ferromagnetic material. The fixed rotor poles have associated rotor windings configured to be energized substantially by the stator. Each of the rotor windings is associated with the tooth. Each of the rotor windings includes an alternating current (AC) coil (or auxiliary coil) configured to carry an AC current induced by an AC current flowing in the stator. A direct current (DC) coil (or primary coil) defines a rotor field energizable by magnetic fields produced by the stator windings to produce relative forces between the rotor and the stator. The DC coil is at least partially powered or controlled by the AC coil.
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公开(公告)号：US12003144B2
公开(公告)日：2024-06-04
申请号：US18179743
申请日：2023-03-07
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Matthias Preindl
IPC: H02K11/042 , H02K1/14 , H02K1/24
CPC classification number: H02K11/042 , H02K1/14 , H02K1/24
Abstract: An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated rotor windings, wherein the rotor defines a field energizable by magnetic fields produced by the stator windings when receiving the stator current to produce relative motion between the rotor and the stator and wherein the rotor is maintained in synchronicity with the magnetic fields produced by the stator during operation of the electric machine. The electric machine also includes a rectification system configured control against an alternating current being induced in the rotor poles as the field is energized by magnetic fields produced by the stator windings when receiving the stator current.
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公开(公告)号：US11949289B2
公开(公告)日：2024-04-02
申请号：US18083461
申请日：2022-12-16
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J Rubin , Gregory Gordon Stevenson , Michael Parker Owen
CPC classification number: H02K1/223 , H02K1/02 , H02K21/16 , H02P7/29 , H02P2207/05
Abstract: A stator defines multiple stator poles with associated electrical windings. A rotor includes multiple rotor poles. The rotor is movable with respect to the stator and defines, together with the stator, a nominal gap between the stator poles and the rotor poles. The rotor poles includes a magnetically permeable pole material. The rotor also includes a series of frequency programmable flux channels (FPFCs). Each FPFC includes a conductive loop surrounding an associated rotor pole. The stator and the rotor are arranged such that the electrical windings in the stator induce an excitement current within at least one of the FPFCs during start-up.
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公开(公告)号：US11870319B2
公开(公告)日：2024-01-09
申请号：US17882135
申请日：2022-08-05
Applicant: Tau Motors, Inc.
Inventor： Matthew J. Rubin , Walter Wesley Pennington, III , Adam Daniel Ambrecht , Gregory Gordon Stevenson
CPC classification number: H02K41/065 , H02K7/116 , H02K9/193
Abstract: An electric motor has a stator mechanically coupled to the rotor by a nutating traction interface, such that during nutation of the rotor with respect to the stator a tilt axis of the rotor progresses about the axis of rotation of the output shaft. The rotor and a surface of the stator bound a dynamic gap across which a magnetic field is produced by electrical activation of the motor to generate a force between the rotor and the stator. The traction interface and the gap are arranged such that, in a plane containing the axis of rotation of the output shaft, the traction interface is angled with respect to the stator surface bounding the gap. The rotor is connected to the output shaft by a tiltable connection such as a gimbal.
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公开(公告)号：US20230336065A1
公开(公告)日：2023-10-19
申请号：US18338705
申请日：2023-06-21
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Adam Daniel Ambrecht , Gregory Gordon Stevenson
CPC classification number: H02K41/065 , H02K7/116 , H02K9/193
Abstract: An electric motor has a stator mechanically coupled to the rotor by a nutating traction interface, such that during nutation of the rotor with respect to the stator a tilt axis of the rotor progresses about the axis of rotation of the output shaft. The rotor and a surface of the stator bound a dynamic gap across which a magnetic field is produced by electrical activation of the motor to generate a force between the rotor and the stator. The traction interface and the gap are arranged such that, in a plane containing the axis of rotation of the output shaft, the traction interface is angled with respect to the stator surface bounding the gap. The rotor is connected to the output shaft by a tiltable connection such as a gimbal.
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