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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：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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4.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：US20240351694A1
公开(公告)日：2024-10-24
申请号：US18761099
申请日：2024-07-01
申请人： Archer Aviation Inc.
发明人： Scott GRAVES , Alan BALDWIN , Stephen Michael SPITERI , Wei WU , Alan D. TEPE
CPC分类号： B64D27/24 , B64C29/0033 , H02P25/16 , H02P27/06
摘要： An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.
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公开(公告)号：US12123900B2
公开(公告)日：2024-10-22
申请号：US17443998
申请日：2021-07-29
IPC分类号： G01R21/06 , G01K7/22 , G01K7/42 , G01K13/00 , G01R21/14 , H02P27/06 , H02P27/08 , H02P29/68 , G05F3/02 , H02M1/00 , H02M1/32 , H02M5/293 , H02M5/458 , H02M7/00 , H02M7/5387 , H02P21/22
CPC分类号： G01R21/14 , G01K7/22 , G01K7/427 , G01K13/00 , G01R21/06 , H02P27/06 , H02P27/08 , H02P29/68 , G05F3/02 , H02M1/00 , H02M1/327 , H02M5/293 , H02M5/458 , H02M7/003 , H02M7/53871 , H02P21/22
摘要： A power conversion device includes a power conversion circuit including a temperature sensor configured to detect a temperature at a sensor position and a switch configured to switch a connection on and off at a switch position separated from the sensor position; a loss calculation processing circuitry configured to calculate a power loss in the switch; a loss correction processing circuitry configured to correct a calculation result of the power loss on the basis of a detection result of the temperature at the sensor position; a temperature correction processing circuitry configured to correct the detection result of the temperature on the basis of the calculation result of the power loss; and a temperature estimation processing circuitry configured to estimate a temperature at the switch position on the basis of a corrected calculation result of the power loss and a corrected detection result of the temperature.
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7.发明公开公开(公告)号：US20240348189A1
公开(公告)日：2024-10-17
申请号：US18683320
申请日：2022-07-25
申请人： Robert Bosch GmbH
发明人： Helge Sprenger , Thomas Zeltwanger
摘要： The invention relates to an expanded control scheme for an electrical machine (2). In particular, it is provided to change specifically into a freewheeling state in the event that only a low torque or a low phase current is to be set at the electrical machine (2). In order to change into the freewheeling state, additionally the actual rotational speed of the electrical machine (2) is taken into consideration.
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公开(公告)号：US20240343146A1
公开(公告)日：2024-10-17
申请号：US18749908
申请日：2024-06-21
申请人： BYD COMPANY LIMITED
发明人： Bingjian HUANG , Hao LV , Axi QI , Zhifei YANG
CPC分类号： B60L53/53 , B60L15/32 , B60L53/18 , B60L53/20 , H02J7/007 , H02M7/5387 , H02P27/06 , H02J2207/20 , H02P2201/11
摘要： The present disclosure relates to the technical field of vehicles, and provides a discharging vehicle and a vehicle charging system. The discharging vehicle includes a discharging control device, a first power battery, a motor, and a motor control circuit. A first electrode and a second electrode of the first power battery are respectively connected to a first input terminal and a second input terminal of the motor control circuit. The discharging control device realizes, by using the motor control circuit, DC step-down charging of the second power battery by the first power battery.
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公开(公告)号：US12119767B2
公开(公告)日：2024-10-15
申请号：US17660456
申请日：2022-04-25
发明人： Huibin Zhu , Dianbo Fu , Heping Dai , Liming Ye
CPC分类号： H02P27/06 , B60L50/60 , H02M3/33584 , H02M7/483 , B60L2210/10 , B60L2210/30 , B60L2210/40 , B60L2220/00 , H02M1/007 , H02M1/0074
摘要： A system includes a first power conversion device connected to a first power source, a first isolated power conversion device connected to the first power source, and a second power conversion device connected to the first isolated power conversion device, wherein outputs of the first power conversion device and outputs of the second power conversion device are connected in series, and series-connected outputs of the first power conversion device and the second power conversion device are configured to drive a motor.
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公开(公告)号：US20240333189A1
公开(公告)日：2024-10-03
申请号：US18613672
申请日：2024-03-22
发明人： Takahiro SUZUKI
CPC分类号： H02P27/06 , H02J7/0063 , H02J7/02
摘要： A power converter includes a charger, a battery, a motor, an inrush current limiter, and processing circuitry. A first switching unit connects the charger to the battery. A second switching unit connects a positive conductor to the neutral point of the motor. A third switching unit connects the battery and the inverter. The inrush current limiter is connected in parallel to the third switching unit and includes a resistance element and a fourth switching unit. The controller pre-charges a second capacitor arranged between the battery and the inverter by turning off the third switching unit and turning on the fourth switching unit. The controller pre-charges a first capacitor arranged between the charger and the battery after pre-charging the second capacitor by performing a step-down operation with the inverter while turning on the second and third switching units and turning off the first and fourth switching units.
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