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公开(公告)号：US20240213864A1
公开(公告)日：2024-06-27
申请号：US18606620
申请日：2024-03-15
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
CPC classification number: H02K21/042 , H02K1/223 , H02P21/22 , H02P25/098
Abstract: An electric machine includes a stator and a rotor energizable by magnetic fields produced by the stator when receiving a stator current to produce relative motion between the rotor and the stator. A controller is configured to send the stator current through the stator at a current angle measured from the closest one of a pole of the rotor, determine a desired operational output of the electric machine, and determine a desired rotor motion corresponding to the desired operational output of the electric machine. The controller is further configured to calculate a vector control modulation applied to the stator that elicits the desired rotor motion, and adjust the current angle of the stator current based on the vector control modulation to cause the rotor to perform the desired rotor motion and achieve the desired operational output of the electric machine.
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公开(公告)号：US20230148310A1
公开(公告)日：2023-05-11
申请号：US17634715
申请日：2021-08-02
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Mathias 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：US11637481B1
公开(公告)日：2023-04-25
申请号：US17634715
申请日：2021-08-02
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 , H02K1/24 , H02K1/14 , H02P25/00
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：US11563347B2
公开(公告)日：2023-01-24
申请号：US17151978
申请日：2021-01-19
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen
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：US20220376597A1
公开(公告)日：2022-11-24
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
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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Patent Agency Ranking
公开(公告)号：US11451124B2
公开(公告)日：2022-09-20
申请号：US16963950
申请日：2019-05-23
Applicant: Tau Motors, Inc.
Inventor： Matthew J. Rubin , Walter Wesley Pennington, III , Adam Daniel Ambrecht , Gregory Gordon Stevenson
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：US20230231444A1
公开(公告)日：2023-07-20
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：US20240204591A1
公开(公告)日：2024-06-20
申请号：US18593229
申请日：2024-03-01
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：US20240014721A1
公开(公告)日：2024-01-11
申请号：US18332038
申请日：2023-06-09
Applicant: Tau Motors, Inc.
Inventor： Walter Wesley Pennington, III , Matthew J. Rubin , Gregory Gordon Stevenson , Michael Parker Owen , Ethan Bagget Swint , Matthias Preindl
CPC classification number: H02K11/33 , H02K3/28 , H02K1/17 , H02K2201/03
Abstract: An electric machine includes a stator and a rotor energizable by magnetic fields produced by the stator when receiving a stator current to produce relative motion between the rotor and the stator. A controller is configured to send the stator current through the stator at a current angle measured from the closest one of a pole of the rotor, determine a desired operational output of the electric machine, and determine a desired rotor motion corresponding to the desired operational output of the electric machine. The controller is further configured to calculate a vector control modulation applied to the stator that elicits the desired rotor motion, and adjust the current angle of the stator current based on the vector control modulation to cause the rotor to perform the desired rotor motion and achieve the desired operational output of the electric machine.
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公开(公告)号：US11621612B2
公开(公告)日：2023-04-04
申请号：US17240277
申请日：2021-04-26
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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