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1.发明授权公开(公告)号：US11973455B2
公开(公告)日：2024-04-30
申请号：US17578129
申请日：2022-01-18
申请人： AeroVironment, Inc.
发明人： Michael Leonardi , William Nicoloff
CPC分类号： H02P6/10 , B60L15/20 , B60L2200/10 , B60L2220/16 , B60L2240/421 , B60L2240/423 , B60L2260/32 , Y02T10/64 , Y02T10/72
摘要： An electric motor controller system for modulating requested motor torque via oscillating the instantaneous torque, including a bi-stable torque controller; a proportional-integral (PI) velocity controller a proportional-integral-differential (PID) position controller; and sinusoidal zero-velocity table mapping.
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公开(公告)号：US11888429B2
公开(公告)日：2024-01-30
申请号：US17263950
申请日：2019-09-05
申请人： BELIMO HOLDING AG
摘要： For controlling an electric motor to maintain a current motor position, a motor controller determines the current motor position of the electric motor and selects (S41) from a set of stable positions, defined by cogging torque of the electric motor, a selected stable position closest to the current motor position. The controller controls the motor torque of the electric motor to maintain the motor position (S4) within a defined range around the selected stable position.
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公开(公告)号：US11821953B2
公开(公告)日：2023-11-21
申请号：US17534179
申请日：2021-11-23
CPC分类号： G01R31/34 , G01L3/22 , H02P6/10 , H02P23/0031 , H02P23/12 , H02P25/098
摘要： A variable reluctance motor load mapping apparatus includes a frame, an interface disposed on the frame configured for mounting a variable reluctance motor, a static load cell mounted to the frame and coupled to the variable reluctance motor, and a controller communicably coupled to the static load cell and the variable reluctance motor, the controller being configured to select at least one motor phase of the variable reluctance motor, energize the at least one motor phase, and receive motor operational data from at least the static load cell for mapping and generating an array of motor operational data look up tables.
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公开(公告)号：US11799403B2
公开(公告)日：2023-10-24
申请号：US16197490
申请日：2018-11-21
发明人： Michael Neuhaus
摘要： An electric motor for a vehicle includes a stator, a rotor and a plurality of independent bridge drivers. Each bridge driver supplies a portion of current to the electric motor. There may be a phase shift between each independent bridge driver. Optionally, each bridge driver delivers current at a slew rate that is different from each other independent bridge driver.
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公开(公告)号：US11705852B2
公开(公告)日：2023-07-18
申请号：US17017708
申请日：2020-09-11
摘要： A motor driving device for driving a motor is provided. The motor driving device includes: a driver outputting a drive signal for driving the motor to the motor; and a controller controlling a duty ratio of the drive signal based on three control parameters which are an initial duty ratio, a duty ratio increasing speed, and a target duty ratio. The controller has a normal control mode in which each of the three control parameters is a predetermined value, and a cryogenic control mode in which at least one of the three control parameters is a smaller value than in the normal control mode.
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公开(公告)号：US20230155533A1
公开(公告)日：2023-05-18
申请号：US17916707
申请日：2021-01-22
申请人： Hitachi Astemo, Ltd.
摘要： An object of the present invention is to sufficiently suppress a vibration and noise generated in a motor.
A motor control device includes a first inverter circuit and a second inverter circuit of a redundant system, the first inverter circuit and the second inverter circuit controlling a motor, and a control unit that controls the first inverter circuit and the second inverter circuit. The first inverter circuit converts the DC power into the AC power based on a PWM signal generated by using a first carrier signal. The second inverter circuit converts the DC power into the AC power based on a PWM signal generated by using a second carrier signal. The control unit shifts phases of the first carrier signal and the second carrier signal by using, as a reference, pulsation of an electromagnetic force caused by a magnetic circuit of the motor.-
公开(公告)号：US20230071070A1
公开(公告)日：2023-03-09
申请号：US17988079
申请日：2022-11-16
IPC分类号： H02P6/10 , H02P6/00 , H02P25/064
摘要： A planar drive system comprises a stator and a rotor. The stator comprises a plurality of energizable stator conductors. The rotor comprises a magnet device having at least one rotor magnet. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device to drive the rotor. The stator is configured to carry out energization of the stator conductors so that an alternating magnetic field can be generated via the energized stator conductors. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field. The planar drive system is configured to transmit data from the stator to the rotor, and the stator is configured to temporarily influence the energization of the stator conductors in order to temporarily cause a change with respect to the alternating voltage induced in the at least one rotor coil.
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公开(公告)号：US20230067971A1
公开(公告)日：2023-03-02
申请号：US17858864
申请日：2022-07-06
发明人： Xiong ZHENG , Xianxi PAN , Yu LUO , Zhimin DAN
摘要： This application provides a permanent-magnet synchronous machine control method and device, and a permanent-magnet synchronous machine control system. The method includes: obtaining a d-axis current id and a q-axis current iq in a permanent-magnet synchronous machine control loop at a current moment; obtaining a fifth-order harmonic current id5th and a seventh-order harmonic current id7th in the d-axis current id in the permanent-magnet synchronous machine control loop at the current moment, and a fifth-order harmonic current iq5th and a seventh-order harmonic current iq7th in the q-axis current iq in the permanent-magnet synchronous machine loop at the current moment; determining a d-axis current idk+1 at a next moment in each switch state; determining a q-axis current iqk+1 at the next moment in each switch state based on the first current idk, the second current iqk, and the second voltage in each switch state; and determining a control policy of the permanent-magnet synchronous machine.
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公开(公告)号：US11498611B2
公开(公告)日：2022-11-15
申请号：US17053366
申请日：2019-03-28
申请人： Nidec Corporation
发明人： Shuji Endo
摘要： A motor control device includes an inverter to drive a motor, and a control calculator to calculate a current command value indicating a current to be supplied to the motor from the inverter. The control calculator includes a voltage control calculator to calculate a voltage command value indicating a voltage to be applied to the motor from the inverter based on a current deviation between the current command value and the actual current detection value, and a compensation calculator to add a compensation value to a signal value on at least one of an upstream side and a downstream side in a signal flow that passes through the voltage control calculator. The voltage control calculator calculates the voltage command value by adaptive control based on an actual angular velocity value indicating an angular velocity at which the motor rotates. The compensation calculator calculates the compensation value based on the actual angular velocity value and the target current command value.
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公开(公告)号：US20220271692A1
公开(公告)日：2022-08-25
申请号：US17181150
申请日：2021-02-22
发明人： Pablo YELAMOS RUIZ , Tao Zhao
IPC分类号： H02P6/10
摘要： An apparatus includes a controller. To control current through a motor winding, the controller monitors a magnitude of current supplied through the motor winding. The controller compares the magnitude of current to a threshold value. In response to detecting that the magnitude of current crosses the threshold value, the controller terminates a flow of the current through the motor winding. In one application, termination of the current through the motor winding supports more efficient use of energy to drive the motor winding. For example, via the controller, terminating the current through the motor winding to prevent the current from flowing in a reverse direction through the motor winding.
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