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公开(公告)号：US20240364251A1
公开(公告)日：2024-10-31
申请号：US18765744
申请日：2024-07-08
申请人： INTEVA PRODUCTS, LLC
发明人： François Breynaert
摘要： A motor control system includes a direct current (DC) motor and a ripple count circuit. The DC motor includes a rotor induced to rotate in response to a drive current generated by a supply voltage. The rotation of the rotor generates a mechanical force that drives a component. The ripple count circuit includes an active filter circuit and a parasitic pulse cancellation circuit. The active filter circuit is configured to filter the drive current and to generate a pulsed signal containing at least one parasitic pulse. The parasitic pulse cancelation circuit is in signal communication with the ripple count circuit to receive the pulsed signal and to output a ripple count signal based on the pulsed signal. The ripple count signal excludes the at least one parasitic pulse.
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公开(公告)号：US20240364228A1
公开(公告)日：2024-10-31
申请号：US18341615
申请日：2023-06-26
发明人： Jung Wook PARK , Issac KIM
CPC分类号： H02M5/46 , B60L53/22 , B60L53/24 , B60L55/00 , H02P27/06 , B60L2210/10 , B60L2210/30 , B60L2240/547
摘要： An integrated power conversion apparatus for an electric vehicle according to the present disclosure includes a first H-bridge converter with one side connected to a high voltage battery; a three-winding transformer in which a primary winding is connected to the other side of the first H-bridge converter; a second H-bridge converter with one side which is connected to a secondary winding of the three-winding transformer; an AC-DC converter in which one side is connected to the other side of the second H-bridge converter and the other side is selectively connected to a motor or a power system; and a low voltage stage converter in which one side is selectively connected to a tertiary winding of the three-winding transformer through a selective switch and the other side is connected to a low voltage battery.
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公开(公告)号：US12132434B2
公开(公告)日：2024-10-29
申请号：US17913371
申请日：2021-03-18
申请人： ROHM CO., LTD.
发明人： Ryota Miyagi , Hiroki Hashimoto
IPC分类号： H02P8/12
CPC分类号： H02P8/12
摘要： A driver device includes a control circuit for controlling an output stage circuit for supplying an output current to a coil, and makes a movable part move with the magnetism generated by the supplied output current. The control circuit can perform holding control to hold the state of the movable part unchanged by suspending its movement. During the holding control by the control circuit, application of an external force tending to change the state of the movable part against the holding control is detected based on the state of supply of electric power to the coil by the output stage circuit, the output current, or the current flowing through the output stage circuit.
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公开(公告)号：US12132432B2
公开(公告)日：2024-10-29
申请号：US18074233
申请日：2022-12-02
申请人： BYD COMPANY LIMITED
发明人： Heping Ling , Lei Yan , Yong Xiong , Chen Hong , Junwei Zhang
摘要： An energy conversion device is provided, including: a first electrical motor control circuit, where the first electrical motor control circuit is connected with a battery pack; a second electrical motor control circuit, where the second electrical motor control circuit is connected with the first electrical motor control circuit in parallel; and a controller, configured to: when operating in a first control mode, control the first electrical motor control circuit to charge and discharge the battery pack to heat the battery pack, and control the second electrical motor control circuit to output torque.
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公开(公告)号：US12132429B2
公开(公告)日：2024-10-29
申请号：US17783000
申请日：2020-01-15
CPC分类号： H02P27/06 , H02M1/0048 , H02M7/483 , H02M7/537
摘要： A power conversion device and a motor system according to the present disclosure comprises an inverter circuit which is connected to a motor, a switch circuit, and a control circuit. The power conversion device and the motor system are characterized in that the inverter circuit and the switch circuit are capable of two-level operation and three-level operation, and the control circuit switches between the two-level operation and the three-level operation on the basis of the motor torque command and the rotational speed command. As a result, it is possible to reduce the total loss in the power conversion device and the motor.
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公开(公告)号：US12132425B2
公开(公告)日：2024-10-29
申请号：US18074276
申请日：2022-12-02
摘要： A motor drive system includes an electric motor, a drive circuit and a control unit. The drive circuit provides a driving current to the electric motor. A current command generator of the control unit generates a current command according to a torque command and a motor operating information. The driving current is converted into a d-axis current and/or a q-axis current by the control unit. Consequently, the driving current is close to the d-axis current command and/or the q-axis current command corresponding to the current command. If a value of the torque command is positive, the current command generator generates the corresponding current command according to a MTPA lookup table. If the value of the torque command is negative, the current command generator generates the corresponding current command according to a zero recycle lookup table.
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公开(公告)号：US12130560B2
公开(公告)日：2024-10-29
申请号：US18228031
申请日：2023-07-31
发明人： Hayato Hoshino
IPC分类号： G03F7/00 , H02P25/064
CPC分类号： G03F7/70758 , G03F7/70716 , H02P25/064
摘要： The present invention provides a control method of a driving apparatus that repeatedly performs a process of driving a target object in a predetermined range by a linear motor, wherein the linear motor includes a stator in which a plurality of coils are arrayed, and a mover provided with the target object, the control method comprising: changing a position of the stator with respect to the predetermined range at an arbitrary timing; and determining, in accordance with the changed position of the stator, output ratios of the plurality of coils in the process.
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8.发明授权公开(公告)号：US12130200B2
公开(公告)日：2024-10-29
申请号：US18042506
申请日：2020-10-13
发明人： Yasuhiko Wada , Kazunori Sakanobe
IPC分类号： G01M13/04 , G01N3/56 , H02P21/14 , H02P27/06 , H02P29/024
CPC分类号： G01M13/04 , G01N3/56 , H02P21/14 , H02P27/06 , H02P29/024
摘要： A failure diagnosis apparatus includes a controller to control drive of a motor, a wear estimator to estimate an amount of wear of a bearing of the motor based on a current that flows in the motor, and a failure notification unit to diagnose a failure of the motor based on the amount of wear of the bearing of the motor estimated by the wear estimator and to notify a user. When the wear estimator estimates the amount of wear of the bearing of the motor, the controller controls drive of the motor such that the motor is driven in a constant state.
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公开(公告)号：US20240356469A1
公开(公告)日：2024-10-24
申请号：US18641874
申请日：2024-04-22
申请人： Carrier Corporation
发明人： Kun Chen , Zhenyu Zhang , Ismail Agirman
IPC分类号： H02P21/14 , H02P21/22 , H02P23/10 , H02P25/024
CPC分类号： H02P21/141 , H02P21/22 , H02P23/10 , H02P25/024
摘要： Disclosed is a method for detecting motor parameters, comprising: injecting a first direct current signal; receiving a first d-q axis feedback current corresponding to the first direct current signal and a first d-q axis voltage output by a current regulation module; injecting a second direct current signal different from the first direct current signal; receiving a second d-q axis feedback current corresponding to the second direct current signal and a second d-q axis voltage output by the current regulation module; and determining motor parameters based on the first d-q axis feedback current, the first d-q axis voltage, the second d-q axis feedback current and the second d-q axis voltage. Also disclosed is an apparatus for detecting motor parameters, a computer program product and an air conditioner compressor system.
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公开(公告)号：US20240356467A1
公开(公告)日：2024-10-24
申请号：US18731781
申请日：2024-06-03
IPC分类号： H02P6/06 , B08B9/032 , E01C19/40 , E02D3/046 , F16H1/14 , F16H1/20 , F16H1/28 , H01M50/213 , H02K7/116 , H02K11/00 , H02K11/27 , H02K11/33 , H02K21/16 , H02P6/28 , H02P6/34
CPC分类号： H02P6/06 , B08B9/0321 , F16H1/14 , F16H1/28 , H01M50/213 , H02K7/116 , H02K11/0094 , H02K11/27 , H02K11/33 , H02K21/16 , H02P6/28 , H02P6/34 , E01C19/402 , E02D3/046 , F16H1/20 , H01M2220/20
摘要： A stand-alone motor unit for use with a piece of power equipment includes a housing and a flange coupled to the housing on a first side thereof. A plurality of apertures through the flange defines a first bolt pattern that matches an identical, second bolt pattern defined in the piece of power equipment. An electric motor has a power output of at least about 2760 W. The motor includes a stator having a nominal outer diameter of up to about 80 mm and a rotor supported for rotation within the stator. A power take-off shaft receives torque from the rotor and protrudes from one of the flange or a second side of the housing. A controller is positioned within the housing and electrically connected to the motor. A battery pack for powering the motor has battery cells having a nominal voltage of up to about 80 V.
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