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11. 发明申请

US20220060128A1 MOTOR CONTROL APPARATUS AND IMAGE FORMING APPARATUS THAT DETECT ROTOR POSITION 有权
公开(公告)号：US20220060128A1
公开(公告)日：2022-02-24
申请号：US17516911
申请日：2021-11-02
申请人： CANON KABUSHIKI KAISHA
发明人： Takashi Odate , Hidetoshi Hanamoto
IPC分类号： H02P6/16 , H02P6/20 , G03G15/00 , G03G15/16
摘要： A motor control apparatus includes: a switching power supply; a first motor configured to operate with a voltage from the switching power supply; and a control unit configured to control the first motor, wherein the control unit is further configured to cause the switching power supply to supply power of the switching power supply to a load other than the first motor before detecting an initial position of a rotor of the first motor using a current flowing through the first motor.

12. 发明授权

US11218097B2 Method for determining rotor position of electric motor, elevator and electrical converter unit 有权
公开(公告)号：US11218097B2
公开(公告)日：2022-01-04
申请号：US16794623
申请日：2020-02-19
申请人： KONE Corporation
发明人： Tuukka Kauppinen , Lauri Stolt , Mikko Paakkinen
IPC分类号： H02P21/18 , H02P6/185 , B66B1/30 , G01B7/00 , H02P6/20 , H02P21/00
摘要： A method for determining a rotor position of an electric motor, an elevator and an electrical converter unit are presented. The method comprises supplying a first excitation signal to the electric motor, determining a first response signal generated in the motor in response to the first excitation signal, determining, based on the first response signal, an electrical angle of a direct axis of the motor with respect to a stationary reference frame, supplying a second excitation signal to the motor, wherein the second excitation signal is based on the determined electrical angle, determining a second response signal generated in the motor in response to the second excitation signal, and determining the rotor position based on the second response signal.

13. 发明授权

US11190118B2 System for controlling electrical power generated by a permanent magnet machine 有权
公开(公告)号：US11190118B2
公开(公告)日：2021-11-30
申请号：US16487938
申请日：2017-11-23
申请人： SEDEMAC MECHATRONICS PVT LTD
发明人： Amit Dixit , Arvind Athavale , Anaykumar Joshi
IPC分类号： H02P6/20 , H02P9/48 , H02M1/00
摘要： A system for controlling electrical power generated by a permanent magnet machine coupled to an internal combustion engine includes a central processing unit configured to determine speed of the machine, and compare the machine speed with a predetermined range of machine speeds, a series power switching circuit connected between the machine and a battery, a bus decoupling power switch connected between a voltage bus and the battery, and a bridge switching circuit connected between the voltage bus and the machine and configured to amplify voltage generated by the machine if the machine speed is less than a predetermined value or fall within a predetermined range thereby charging the battery with amplified voltage even at lower machine speeds. The central processing unit selectively connects the bridge switching circuit with the battery by actuating the bus decoupling switch and/or the series power switching circuit depending upon the machine speed.

14. 发明授权

US11177744B2 Method for starting and operating a BLDC motor and BLDC motor 有权
公开(公告)号：US11177744B2
公开(公告)日：2021-11-16
申请号：US16754492
申请日：2018-09-28
申请人： NIDEC DRIVEXPERT GMBH
发明人： Martin Greiner
IPC分类号： H02P6/20 , H02P6/21
摘要： A BLDC motor and a method for starting and operating the motor. The motor has a rotor with exciter magnets, a stator with at least three stator coils, and a control and evaluation unit. The method carries out an initialization phase with a defined start time, initial starting field angle of the stator magnetic field and angle rising rate. A partial cycle is carried out with a rising phase that increases a current field angle with a change in voltage application to the stator coils. An analysis phase keeps the current field angle constant. The method continuously records a difference in current between two phase currents of a same direction of flow, the evaluation unit analyzes the recorded difference for the presence of a current eye. Immediate commutation takes place when a current eye is detected or where without detection after a pre-definable time interval has elapsed. The analysis phase is terminated after commutation is carried out. The partial cycle is repeatedly carried out until the final field angle has increased to a value of 360° to define a total cycle.

15. 发明授权

US11131968B2 Pump motor control with adaptive startup 有权
公开(公告)号：US11131968B2
公开(公告)日：2021-09-28
申请号：US16910509
申请日：2020-06-24
申请人： HeartWare, Inc.
发明人： John Rudser
IPC分类号： G05B13/02 , G05B23/02 , H02P1/16 , H02P6/20 , A61M60/50 , A61M60/148 , A61M60/871
摘要： An apparatus for starting operation of a motor of an implantable blood pump including a memory storing one or more default parameters for at least one of controlling and monitoring the startup operation. A processor operatively coupled to the motor is included, the processor is configured to: commence the startup operation based on the one or more default parameters; detect an error during the startup operation; adjust at least one of the one or more default parameters in response to the detected error; store the at least one adjusted parameter in the memory; and commence subsequent startup operations based at least in part on the at least one adjusted parameter.

16. 发明授权

US11031886B2 Lead angle adjustment circuit 有权
公开(公告)号：US11031886B2
公开(公告)日：2021-06-08
申请号：US16580449
申请日：2019-09-24
申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
发明人： Takashi Ogawa
IPC分类号： H02P6/15 , H02P27/08 , H02P6/08 , H02P6/17 , H02P6/182 , H02P1/02 , H02P6/20
摘要： A lead angle adjustment circuit includes a counter that receives an input signal and has an output that is connected to a multiplier circuit. The multiplier circuit has an output connected to a subtractor circuit that has an output connected to a pseudo FG generator circuit. The output of the counter is also connected to a storage register that is coupled to an addition circuit through a range determination circuit, a slope determination circuit, and a multiplier determination circuit. The input signal is input to another counter which is connected to the addition circuit through a start determination circuit and an advance angle calculation circuit. The outputs of the multiplier determination circuit and the advance angle calculation circuit are input to the addition which, which generates a signal is subtracted by the subtractor circuit to generate the signal input into the pseudo FG generator circuit.

17. 发明授权

US11005396B2 Starting method and apparatus for permanent magnet synchronous motor, power system, and unmanned aerial vehicle 有权
公开(公告)号：US11005396B2
公开(公告)日：2021-05-11
申请号：US16567183
申请日：2019-09-11
申请人： AUTEL ROBOTICS CO., LTD.
发明人： Yidong Chen
IPC分类号： H02P6/15 , H02P6/06 , H02P6/17 , H02P6/22 , H02P21/14 , G05D1/00 , B64C39/02 , H02P21/00 , H02P21/04 , H02P21/34 , H02P6/20
摘要： Implementations of the present application relate to a starting method and apparatus for a permanent magnet synchronous motor, a power system, and an unmanned aerial vehicle (UAV). The method includes: obtaining a current motor rotational speed and motor position information of the permanent magnet synchronous motor; determining whether the current motor rotational speed is less than a preset minimum rotational speed, and if the current motor rotational speed is less than the preset minimum rotational speed, using the preset minimum rotational speed as a feedback rotational speed; otherwise, using the current motor rotational speed as a feedback rotational speed; and performing closed-loop control on the permanent magnet synchronous motor according to the feedback rotational speed and the motor position information. In this way, the starting method is simplified and simpler. Potential failure risks in various states in the prior art are avoided, thereby effectively improving reliability of a starting process.

18. 发明申请

US20210067070A1 COMPACT MOTOR STARTER 有权
公开(公告)号：US20210067070A1
公开(公告)日：2021-03-04
申请号：US16555898
申请日：2019-08-29
申请人： Rockwell Automation Technologies, Inc.
发明人： Thomas Strebel Marzano
IPC分类号： H02P6/28 , H02P6/20 , H02P29/40
摘要： A motor starter has a housing, a contactor portion disposed within the housing, a motor protection system disposed within the housing adjacent to the contactor portion in a vertical direction, and an actuation system disposed within the housing. The contactor portion may switch between an open position and a closed position, in which, in the open position, current does not flow through the motor starter and, in the closed position, current is allowed to flow through the motor starter. The motor protection system includes a plurality of components that may move the contactor portion to the open position based on a current flow, in which the actuation system may move the contactor portion between the closed position and the open position in response to receiving an input.

19. 发明授权

US10892693B2 Method for controlling an electric motor including an identification sequence of a transformer 有权
公开(公告)号：US10892693B2
公开(公告)日：2021-01-12
申请号：US16190336
申请日：2018-11-14
申请人： Schneider Toshiba Inverter Europe SAS
发明人： Thomas Devos , Al Kassem Jebai , Francois Malrait
IPC分类号： H02P6/21 , H02K11/00 , H02P6/28 , H02P6/08 , H02P25/024 , H02P6/20
摘要： A method for controlling an electric motor, implemented in a variable speed drive, the variable speed drive being connected to the electric motor through a transformer, the method including; executing an identification sequence of the transformer for determining gain data corresponding to an inverse function of a transfer function of the transformer; generating a transfer module based on said determined gain data; determining a start-up sequence of the electric motor to be implemented by the variable speed drive by executing the transfer module on a reference current path.

20. 发明授权

US10808690B2 Method for the start-up control of an electric vacuum pump 有权
公开(公告)号：US10808690B2
公开(公告)日：2020-10-20
申请号：US14366124
申请日：2012-11-27
申请人： Continental Automotive GmbH
发明人： Alexander Kalbeck , Jürgen Schicke , Christian Märkl
IPC分类号： F04B49/02 , F04B49/06 , H02P6/20 , F04C25/02 , F04C28/06 , B60T13/46
摘要： The invention relates to a method for controlling a start-up of an electric vacuum pump for a vacuum system of a vehicle, wherein the start-up can occur according to at least two different start-up modes, i.e., according to a standard mode and according to at least one special mode, wherein in the standard mode the vacuum pump is connected to a supply voltage in a non-clocked manner and in the special mode the vacuum pump is connected to a supply voltage in a dynamically clocked manner.

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