公开(公告)号：US11757338B2

公开(公告)日：2023-09-12

申请号：US17634828

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: H02K17/32 ,  H02K23/68 ,  H02K27/30 ,  H02K21/04 ,  H02P21/22 ,  H02K1/22 ,  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.

公开(公告)号：US20230198341A1

公开(公告)日：2023-06-22

申请号：US18110571

申请日：2023-02-16

Applicant: Tau Motors, Inc.

Inventor： Walter Wesley Pennington, III ,  Matthew J. Rubin ,  Gregory Gordon Stevenson ,  Adam Daniel Ambrecht ,  Euzeli Cipriano dos Santos, JR.

IPC: H02K11/028 ,  H02K1/02 ,  H02K1/16 ,  H02K1/24 ,  H02P23/14

CPC classification number: H02K11/028 ,  H02K1/02 ,  H02K1/165 ,  H02K1/246 ,  H02P23/14 ,  H02K3/28

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.

公开(公告)号：US20230121580A1

公开(公告)日：2023-04-20

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

IPC: H02K1/22 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29

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.

公开(公告)号：US20210226488A1

公开(公告)日：2021-07-22

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

IPC: H02K1/22 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29

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.

公开(公告)号：US20200052557A1

公开(公告)日：2020-02-13

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 ,  H02P23/14 ,  H02K1/24 ,  H02K1/16 ,  H02K1/02

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.