公开(公告)号：US12107522B2

公开(公告)日：2024-10-01

申请号：US18576699

申请日：2022-07-07

Applicant: TAU MOTORS, INC.

Inventor： Walter Wesley Pennington, III ,  Ethan Bagget Swint ,  Anthony Da Costa ,  Matthew J. Rubin

IPC: H02P21/14 ,  H02P6/32 ,  H02P6/34 ,  H02P21/22

CPC classification number: H02P21/14 ,  H02P6/32 ,  H02P6/34 ,  H02P21/22 ,  H02P2207/07

Abstract: Systems and methods are provided for controlling and simulating a motor. An electronic motor controller determines present motor information and a motor control parameter set based on the present motor information and a rotating reference frame of the motor. The rotating reference frame has independent input channels that decouple an intended output response in a stator D-axis component and a rotor field (R) component of a direct-quadrature-null-rotor (DQNR) reference frame. The electronic motor controller further controls the motor based on the motor control parameter set.

公开(公告)号：US10819259B2

公开(公告)日：2020-10-27

申请号：US15586336

申请日：2017-05-04

Applicant: General Electric Company

Inventor： Patel Bhageerath Reddy ,  Deepak Aravind

IPC: H02K1/22 ,  H02K1/30 ,  H02K1/27 ,  H02P6/32 ,  H02K21/04 ,  H02P25/024

Abstract: An electric machine is presented. The electric machine includes a stator. The electric machine further includes rotor disposed adjacent to the stator. The rotor includes a rotor core, a plurality of permanent magnets disposed in contact with the rotor core, a plurality of permanent magnets disposed in contact with the rotor core to modulate torque exerted on the rotor.

公开(公告)号：US10804833B2

公开(公告)日：2020-10-13

申请号：US16336174

申请日：2016-11-02

Applicant: Mitsubishi Electric Corporation

Inventor： Tomohiro Seki ,  Yuya Hisano ,  Ryo Nakamura

IPC: H02P21/22 ,  F02N11/08 ,  H02P9/08 ,  H02P6/32 ,  H02P9/48 ,  F02D29/06 ,  H02P101/45 ,  H02P101/25

Abstract: Provided is a control device for an electric generator/motor, which includes an armature winding and a field winding, the control device including: a bridge circuit configured to energize the armature winding; a field circuit configured to energize the field winding; and an energization control unit configured to control the energization of the bridge circuit and the field circuit. The energization control unit is configured to perform, when performing switching between a generation mode and a drive mode in response to an external command to control the electric generator/motor, control on a current supply amount for the field winding, and vector control on a current supply amount for the armature winding so as to compensate for a variation in field current.

公开(公告)号：US20190314961A1

公开(公告)日：2019-10-17

申请号：US16454837

申请日：2019-06-27

Applicant: Black & Decker Inc.

Inventor： Alexander Manasseh ,  Scott J. Eshleman ,  Robert A. Usselman ,  John D. Cox

IPC: B25B21/00 ,  H02P6/24 ,  H02P6/20 ,  H02P6/08 ,  B23B45/02 ,  H02P6/00 ,  H02P6/15 ,  H02P23/26 ,  H02P6/32

Abstract: A power tool is provided including a brushless DC (BLDC) motor, a rectifier that receives an alternative current from a power supply and outputs a rectified signal supplied to a DC power bus, and an inverter circuit having motor switches connected electrically between the DC power bus and the motor. A control module controls a switching operation of the power switches to regulate supply power from the power supply to the motor. The control module controls the switching operation so as to, within a half cycle of the AC power supply voltage waveform, increase current draw from the power supply from a first threshold at or after a first zero-crossing of the half cycle up to a second threshold, and reduce current draw from the power supply from the second threshold up to a third threshold at or prior to a second zero-crossing of the half cycle.

公开(公告)号：US20190165705A1

公开(公告)日：2019-05-30

申请号：US16246587

申请日：2019-01-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Richard A. Poisson ,  Naison E. Mastrocola

IPC: H02P6/32 ,  H02P25/03 ,  H02P6/08

CPC classification number: H02P6/32 ,  H02K19/12 ,  H02K21/042 ,  H02P6/08 ,  H02P25/03

Abstract: An actuator assembly includes an electric motor including a rotor assembly and a stator assembly configured to be actuated to cause the rotor assembly to rotate based on an amount of magnetic flux in the rotor assembly is disclosed. The assembly also includes a controllable magnetic device coupled to the rotor assembly, an actuator coupled to the rotor assembly; and a controller configured to apply electric current to the controllable magnetic device to adjust an amount of torque provided by the electric motor by adjusting the magnetic flux in the rotor assembly.

公开(公告)号：US20160197569A1

公开(公告)日：2016-07-07

申请号：US14912102

申请日：2014-08-05

Applicant: ROBERT BOSCH GMBH

Inventor： Dirk Lamprecht

IPC: H02P6/32

CPC classification number: H02P6/32 ,  G01R19/0092 ,  H02M7/53875 ,  H02M2001/0009 ,  H02P21/22

Abstract: The invention relates to a method for determining the phase currents through phase windings (12) and an excitation current through an excitation winding (13) of an electrical machine (11), wherein an excitation winding (13) is connected between a star point (14) of the phase windings (12) and a defined reference potential, the method comprising the following steps: —periodic driving of the electrical machine (11) with a predefined pulse pattern (30); —determining a respective measurement current (Imess) in a plurality of temporal measuring windows (31, 32, 33) of a measuring period (37), wherein the measurement currents (Imess) correspond to currents through one of the phase windings (12) and through one or more parallel connections of a plurality of the phase windings (12); and —determining the phase currents and the excitation current by evaluating the measurement currents (Imess) determined during the measuring period (37).

Abstract translation: 本发明涉及一种用于确定通过相绕组（12）的相电流和通过电机（11）的励磁绕组（13）的激励电流的方法，其中激励绕组（13）连接在星点 14）和限定的参考电位，该方法包括以下步骤：以预定脉冲模式（30）对电机（11）进行非周期性驱动; - 确定测量周期（37）的多个时间测量窗（31,32,33）中的相应测量电流（Imess），其中所述测量电流（Imess）对应于通过所述相绕组（12）之一的电流， 并通过多个相绕组（12）的一个或多个并联连接; 并且通过评估在测量周期（37）期间确定的测量电流（Imess）来确定相电流和激励电流。

公开(公告)号：US12101048B2

公开(公告)日：2024-09-24

申请号：US18576915

申请日：2021-07-06

Applicant: NISSAN MOTOR CO., LTD. ,  RENAULT s.a.s.

Inventor： Yuka Okuyama ,  Abdelkader Bouarfa

IPC: H02P27/08 ,  H02P6/32 ,  H02P21/18 ,  H02P21/20

CPC classification number: H02P27/085 ,  H02P6/32 ,  H02P21/18 ,  H02P21/20 ,  H02P2207/05

Abstract: A motor control method for controlling a motor by transmitting a PWM signal at a predetermined carrier frequency to a power converter configured to supply power to the motor and performing switching control on the power converter, the method including, in a characteristic coordinate having a rotation speed of the motor and a torque of the motor as axes, setting the carrier frequency to be a reference frequency when an operating point representing a current rotation speed and torque is included in a first region, selecting and setting the carrier frequency to be either the reference frequency or a low frequency lower than the reference frequency when the operating point is included in a second region, and setting the carrier frequency to be the low frequency when the operating point is included in a third region.

公开(公告)号：US20230361685A1

公开(公告)日：2023-11-09

申请号：US18343899

申请日：2023-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wingto FAN ,  Shuangquan CHEN ,  Weiliang SHU ,  Yunhe MAO

IPC: H02M3/00 ,  H02M3/335 ,  H02P6/32

CPC classification number: H02M3/33569 ,  H02M3/01 ,  H02P6/32

Abstract: A resonant power supply, a primary-side feedback excitation power supply controller, a method, and a control apparatus are disclosed. In the resonant power supply, a bridge circuit is electrically connected to a power supply. The bridge circuit is configured to convert, based on a drive signal, a direct current provided by the power supply into a square wave signal. An LC series resonant network is electrically connected to the bridge circuit and a primary-side winding. The LC series resonant network is configured to convert the square wave signal into an alternating current, and output the alternating current to the primary-side winding. The alternating current includes an input voltage Vt and an input current Ir.

公开(公告)号：US11251732B2

公开(公告)日：2022-02-15

申请号：US16663482

申请日：2019-10-25

Applicant: JTEKT CORPORATION ,  JTEKT EUROPE S.A.S.

Inventor： Hiroshi Kawamura ,  Yuji Fujita ,  Xavier Palandre ,  Tahar Slama

IPC: H02P25/022 ,  H02P21/20 ,  H02P6/32 ,  B62D5/04 ,  H02P6/12

Abstract: A motor control device includes processing circuitry configured to calculate a current command value corresponding to torque that should be generated by a motor, divide the calculated current command value into individual current command values for coil groups, control power feeding to the coil groups independently for each of the coil groups based on a corresponding one of the individual current command values, set, for each one of the coil groups, an upper limit value of a corresponding one of the individual current command values and, when the individual current command value for any one of the coil groups is limited to a value that is smaller than a corresponding one of the upper limit values, supplement an amount limited in the individual current command value by increasing the individual current command value for at least a remaining one of the coil groups.

公开(公告)号：US10710220B2

公开(公告)日：2020-07-14

申请号：US15481838

申请日：2017-04-07

Applicant: Black & Decker Inc.

Inventor： Alexander Manasseh ,  Scott J. Eshleman ,  Robert A. Usselman ,  John D. Cox

IPC: B25B21/00 ,  H02P6/00 ,  H02P23/26 ,  H02P6/15 ,  H02P6/32 ,  B23B45/02 ,  H02P6/08 ,  H02P6/20 ,  H02P6/24

Abstract: A power tool is provided including a brushless DC (BLDC) motor, a rectifier that receives an alternative current from a power supply and outputs a rectified signal supplied to a DC power bus, and an inverter circuit having motor switches connected electrically between the DC power bus and the motor. A control module controls a switching operation of the power switches to regulate supply power from the power supply to the motor. The control module controls the switching operation so as to, within a half cycle of the AC power supply voltage waveform, increase current draw from the power supply from a first threshold at or after a first zero-crossing of the half cycle up to a second threshold, and reduce current draw from the power supply from the second threshold up to a third threshold at or prior to a second zero-crossing of the half cycle.