专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US12143052B2 Induction motor and controller device therefor 有权
公开(公告)号：US12143052B2
公开(公告)日：2024-11-12
申请号：US17626554
申请日：2020-07-14
申请人： Masayuki Nashiki
发明人： Masayuki Nashiki , Hiroyuki Nashiki
IPC分类号： H02K3/28 , H02K17/16 , H02P6/16 , H02P25/22
CPC分类号： H02P6/16 , H02K3/28 , H02K17/165 , H02P25/22
摘要： In induction motors, efficiency is improved and a maximum torque is increased. For a magnetic flux density of the stator pole for each phase of an induction motor, a circumferential magnetic flux density distribution is controlled to any distribution state, from a trapezoidal wave-like distribution close to a square wave to a sinusoidal distribution. In particular, motor efficiency in a range of low to medium rotations is improved. The motor structure is designed to reduce the leakage inductance of the rotor windings, and the motor and control thereof are optimized for each other. This increases the maximum torque of the motor more effectively. In addition, the high efficiency of the motor makes it possible to reduce the size of the drive circuit.

2. 发明授权

US12132428B2 Attenuation of induced motor currents 有权
公开(公告)号：US12132428B2
公开(公告)日：2024-10-29
申请号：US17885733
申请日：2022-08-11
申请人： GM Global Technology Operations LLC
发明人： Alireza Fatemi , William T. Ivan , Timothy J. Reinhart
IPC分类号： H02M1/12 , B60L50/51 , H02K3/28 , H02K3/46 , H02P25/22 , H02P27/06
CPC分类号： H02P25/22 , B60L50/51 , H02K3/28 , H02K3/46 , H02P27/06 , B60L2210/40 , B60L2220/50 , H02K2203/09
摘要： Induced currents in a multi-phase AC motor may be attenuated by operating the multi-phase AC motor with an AC choke surrounding an AC bus providing multi-phase AC voltage to multi-phase AC stator windings in a stator, wherein the AC choke may include an effective bandwidth at least covering resonant frequencies of a capacitance between the multi-phase AC stator windings and the stator or a frame of the AC motor.

3. 发明公开

US20240356474A1 Electric motor 审中-公开
公开(公告)号：US20240356474A1
公开(公告)日：2024-10-24
申请号：US18136713
申请日：2023-04-19
申请人： Donald Moses
发明人： Donald Moses
IPC分类号： H02P25/22 , H02P25/18
CPC分类号： H02P25/22 , H02P25/184 , H02P2207/05
摘要： An electric motor, comprising a plurality of coils each activatable by selectively providing direct current thereto and at least one capacitor, wherein the electric motor is configured to recover energy stored in at least one of the coils into the at least one capacitor when the direct current is switched off.

4. 发明授权

US12126283B2 Double winding electric machine assembly 有权
公开(公告)号：US12126283B2
公开(公告)日：2024-10-22
申请号：US18147867
申请日：2022-12-29
申请人： ABB Schweiz AG
发明人： Samuli Heikkilä
IPC分类号： H02P1/32 , H02P3/20 , H02P7/06 , H02P21/05 , H02P21/22 , H02P25/22 , H02P27/12
CPC分类号： H02P21/05 , H02P21/22 , H02P25/22 , H02P27/12
摘要： A double winding electric machine assembly including a double winding electric machine having a first stator winding and a second stator winding; a first converter including a first modulator and a first power unit whose output is electrically connected to the first stator winding; a second converter including a second modulator and a second power unit whose output is electrically connected to the second stator winding. The assembly includes a current determining system adapted to determine at least one instantaneous phase current in the output of the first power unit; and a synchronizing system adapted to analyse ripple in the at least one instantaneous phase current, and to synchronize the first modulator with the second modulator by adjusting a phase shift between the first modulator and the second modulator until a minimum peak-to-peak current is obtained.

5. 发明授权

US12119768B2 Motor driving apparatus and method for controlling the same 有权
公开(公告)号：US12119768B2
公开(公告)日：2024-10-15
申请号：US17889315
申请日：2022-08-16
申请人： Hyundai Motor Company , Kia Corporation
发明人： Jung Mo Yu , Yong Jae Lee , Hyun Jae Lim , Young Ho Chae , Young Kwan Ko , Jang Yoon Jeong
IPC分类号： H02P27/06 , B60L50/51 , H02M7/537 , H02P6/08 , H02P25/22
CPC分类号： H02P27/06 , B60L50/51 , H02M7/537 , H02P6/08 , H02P25/22
摘要： A motor driving apparatus driving a motor including a plurality of windings corresponding to each of phases, includes a mode change switch and a plurality of inverters that operate the motor in a closed end winding mode or an open end winding mode; and a controller configured for controlling the mode change switch and the plurality of inverters according to a first mode determination result based on a reverse magnetic flux and a second mode determination result according to an output power limit for each mode.

6. 发明公开

US20240128821A1 CURRENT REGULATORS FOR DUAL WOUND SYNCHRONOUS MOTOR DRIVES 审中-公开
公开(公告)号：US20240128821A1
公开(公告)日：2024-04-18
申请号：US18544084
申请日：2023-12-18
申请人： Steering Solutions IP Holding Corporation
发明人： Prerit Pramod
IPC分类号： H02K3/28 , H02P21/00 , H02P25/22
CPC分类号： H02K3/28 , H02P21/0003 , H02P25/22 , H02K2201/15
摘要： A method of controlling a dual wound synchronous machine (DWSM) includes: determining virtual current commands based on a current command associated with each of two winding sets of the DWSM; determining virtual half-motor currents by applying a mathematical transformation on measured output currents; determining half-motor difference currents based on differences between the corresponding virtual current command and the virtual half-motor current; calculating forward path voltage commands based on the corresponding difference currents and using first and second gain factors; determining feedback voltage commands by applying third and fourth gain factors to the virtual half-motor currents; determining virtual final voltage commands based on the corresponding forward path and feedback voltage commands; determining final voltage commands by applying a second mathematical transformation to the virtual final voltage commands; commanding, based on the final voltage commands, inverters to apply corresponding voltages to the two winding sets and thereby generating the output currents.

7. 发明授权

US11962256B2 Method for controlling an electric machine and drive system for a vehicle 有权
公开(公告)号：US11962256B2
公开(公告)日：2024-04-16
申请号：US17075823
申请日：2020-10-21
申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft
发明人： Johannes Wende , Robert Nelles , Thomas Hubert
IPC分类号： H02P25/22 , B60L15/20 , B60W10/08 , H02P27/08
CPC分类号： H02P27/08 , B60L15/20 , B60W10/08 , H02P25/22 , B60L2220/56 , B60L2220/58
摘要： A method for controlling an electric machine, in particular a permanent magnet synchronous machine, having a first, in particular three-phase, winding system, which is controlled by a first converter, and having a second, in particular three-phase, winding system, which is controlled by a second converter. The first converter is operated with block commutation and the second converter is operated with pulse width modulation, in particular space vector modulation.

8. 发明授权

US11953393B2 6 phase motor torque measurement and control system 有权
公开(公告)号：US11953393B2
公开(公告)日：2024-04-09
申请号：US17598371
申请日：2020-03-16
申请人： BORGWARNER LUXEMBOURG AUTOMOTIVE SYSTEMS S.A.
发明人： Felix Mandoux
IPC分类号： G01L3/10 , H02P25/22
CPC分类号： G01L3/10 , H02P25/22
摘要： A method of measuring torque is provided in a six phase electrical motor which includes a motor-stator including two electrically independent stator winding arrangements which each have three combined windings such that the winding arrangements are symmetrical and offset by an angle to each other and such that each combined winding of the second stator arrangement has a corresponding combined winding in the first stator arrangement and offset thereto by an angle. The method includes a) determining the current in the three combined windings of the first stator arrangement and/or the current in the three combined windings of the second stator arrangement and b) determining the torque from the currents.

9. 发明授权

US11929699B2 Double wound motor control apparatus and method 有权
公开(公告)号：US11929699B2
公开(公告)日：2024-03-12
申请号：US17778847
申请日：2020-10-15
申请人： HL MANDO CORPORATION
发明人： Jae Sang Park
IPC分类号： H02P27/06 , H02P25/22 , H02P29/028 , H02P29/50
CPC分类号： H02P29/50 , H02P25/22 , H02P27/06 , H02P29/028
摘要： The present disclosure relates to a double wound motor and a control method therefor, and comprises: a first inverter and a second inverter for supplying phase currents respectively to a first winding unit and a second winding unit of the double wound motor; a gate driver for driving switches respectively included in the first inverter and second inverter and detecting whether there is a switch abnormality in the first inverter or second inverter and whether there is a winding abnormality in the first winding unit and second winding unit; and a motor control unit for outputting a current command to attenuate a torque ripple in response to a torque ripple pattern according to the switch or winding abnormality.

10. 发明授权

US11881798B2 Motor drive control apparatus 有权
公开(公告)号：US11881798B2
公开(公告)日：2024-01-23
申请号：US17784066
申请日：2020-12-07
申请人： HITACHI ASTEMO, LTD.
发明人： Tomio Sakashita
IPC分类号： H02P23/14 , H02P25/22
CPC分类号： H02P23/14 , H02P25/22
摘要： A motor drive control apparatus includes energization systems for energizing a motor having a plurality of independent winding sets, with the energization systems corresponding one-to-one to the winding sets. A plurality of sensors is provided for each of the energization systems. A controller is provided for each of the energization systems and controls energization of the corresponding winding set based on output signals of the corresponding sensors. A plurality of sub power supply paths is provided for their respective energization systems. Each sub power supply path connects a power supply path for supplying power to the corresponding sensors and a power supply path in another energization system. A semiconductor switch is provided for each of the sub power supply paths, and, between two different energization systems, when one of the two energization systems exhibits a sensor power supply failure, electrically connects the power supply paths of these two energization systems.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式