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公开(公告)号：US20230136232A1
公开(公告)日：2023-05-04
申请号：US17970341
申请日：2022-10-20
摘要： In an inverter that includes a smoothing capacitor and a plurality of power modules, the smoothing capacitor includes a plurality of columnar unit capacitors each having electrodes at both ends thereof, a one-end-side bus plate connected to the electrode at one end of each unit capacitor, and an other-end-side bus plate connected to the electrode at the other end of the unit capacitor. The unit capacitors are arranged, with axes thereof parallel to each other, side by side in a direction perpendicular to the axes. The unit capacitors are arranged at positions equally distant from a center of the inverter. A distance between each power module and the unit capacitor closest to the power module is constant.
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公开(公告)号：US11641125B2
公开(公告)日：2023-05-02
申请号：US17411886
申请日：2021-08-25
申请人： SUBARU CORPORATION
发明人： Itaru Seta , Hiroyuki Suzuki , Yosuke Ohtomo , Masaki Komura , Takashi Kono , Kazuki Makino , Shinya Sagawa
摘要： A vehicular power supply device to be applied to a vehicle includes an electric storage unit group, a charger, first and second switches, and a switch controller. The electric storage unit group includes a first electric storage unit and a second electric storage unit having higher internal resistance than the first electric storage unit. The charger is coupled to the electric storage unit group and charges one or both of the first electric storage unit and second electric storage unit. The first switch is provided between the first electric storage unit and the charger and controlled between an on state and an off state. The second switch is provided between the second electric storage unit and the charger and controlled between an on state and an off state. The switch controller controls the first and second switches based on a temperature of the electric storage unit group.
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公开(公告)号：US11626826B1
公开(公告)日：2023-04-11
申请号：US17509428
申请日：2021-10-25
发明人： Jens Barrenscheen , Michael Krug
IPC分类号： H02P27/06 , H03K17/687
摘要： A driver may comprise a first node, a second node, and processing circuitry. The first node is configured to receive a command from controller circuitry. The second node is configured to receive a commutation signal for activating or deactivating a switch. The processing circuitry is configured to determine, based on the received command, an activation setting for an activation characteristic for the switch and a deactivation setting for a deactivation characteristic for the switch and drive the switch based on the commutation signal. To drive the switch, the processing circuitry is configured to change, at a first time, the deactivation characteristic for the switch from a previous deactivation setting to the determined deactivation setting and change, at a second time that is different from the first time, the activation characteristic for the switch from a previous activation setting to the determined activation setting.
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公开(公告)号：US11621632B2
公开(公告)日：2023-04-04
申请号：US16625558
申请日：2018-06-07
申请人： TDK Electronics AG
发明人： Fabian Beck
IPC分类号： H02M1/44 , H01F27/08 , H01F27/24 , H02M7/00 , H03H7/01 , H05K1/02 , H05K1/18 , H02M7/5387 , H02P27/06
摘要： A component is disclosed. In an embodiment a component includes a first region suitable for a feedthrough of at least one bus bar and a second region in which at least one discrete device is arranged, wherein the first region and the second region are separated from one another by a cooling region thermally decoupling the first region from the second region.
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公开(公告)号：US20230101010A1
公开(公告)日：2023-03-30
申请号：US17952313
申请日：2022-09-26
申请人： NIDEC CORPORATION
发明人： Daisuke OGASAWARA , Jun MURAKAMI , Hiroki AKAISHI , Kazuyuki YAMAMOTO , Yuki ISHIKAWA , Keisuke NAKATA
摘要： In an electric power unit that includes: a motor accommodating portion and a gear accommodating portion in a housing; and an inverter accommodating portion and an auxiliary machine attachment portion formed on side walls of the housing, the auxiliary machine attachment portion is formed by a protruding portion having at least a first vertical surface and a first horizontal surface formed on one of the side walls forming the motor accommodating portion and the gear accommodating portion of the housing, a first rib extending in a horizontal direction is formed on the first vertical surface facing one axial side of the auxiliary machine attachment portion, and a second rib, which extends in a vertical direction with respect to the first horizontal surface and connects the first horizontal surface and the inverter accommodating portion, is formed on the first horizontal surface, adjacent to the inverter accommodating portion, of the auxiliary machine attachment portion.
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公开(公告)号：US20230100892A1
公开(公告)日：2023-03-30
申请号：US17950100
申请日：2022-09-22
申请人： NIDEC CORPORATION
发明人： Daisuke OGASAWARA , Yuki ISHIKAWA , Keisuke NAKATA , Jun MURAKAMI , Hiroki AKAISHI , Kazuyuki YAMAMOTO
摘要： In an electric power unit which accommodates at least an electric motor in a housing, polygonal rib regions in which polygonal ribs are respectively formed are provided on at least two surfaces of an outer peripheral surface of the housing, and the polygonal rib regions are connected by a circumferential rib. Here, a first axial rib and a second axial rib extending parallel to an axial direction are formed on the outer peripheral surface of the housing, and the polygonal rib region is provided in a portion sandwiched between the first axial rib and the second axial rib. Further, the circumferential rib is formed over the entire part of the polygonal rib region in a circumferential direction. Note that the polygonal rib is a honeycomb rib.
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公开(公告)号：US11608186B2
公开(公告)日：2023-03-21
申请号：US17450045
申请日：2021-10-05
申请人： The Boeing Company
摘要： An electric drive system including an impedance balancing noise filtering circuit is disclosed. The electric drive system includes a direct current (DC) power source configured to output DC power to an output port and an inverter configured to convert the DC power output by the DC power source into alternating current (AC) power that is provided to an input port of an AC load. The impedance balancing noise filtering circuit includes an impedance bridge electrically intermediate the output port of the DC power source and the input port of the AC load. The impedance balancing noise filtering circuit includes different sets of passive components that are positioned on both the DC-side and the AC-side of the inverter. These sets of passive components are configured to facilitate impedance balancing that reduces common-mode (CM) electromagnetic interference (EMI) emission at the output port of the DC power source.
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公开(公告)号：US20230069997A1
公开(公告)日：2023-03-09
申请号：US18049413
申请日：2022-10-25
申请人： DENSO CORPORATION
发明人： Toshihisa Yamamoto , Naoki Matsuda
摘要： An electric driver device provides a partial redundancy system that is at least partially redundant, or a full redundancy system. The electric driver device has a plurality of circuit systems. The electric driver device includes, in at least a part of the electric circuit, a common circuit extending over at least two of a plurality of circuit systems. The common circuit includes a power supply and/or a connection line that complements signals. At least one of the power supply circuit, an interface circuit, a power supply cutoff circuit, and a connector is not separated and independent from each other for each redundant circuit system.
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公开(公告)号：US11601083B1
公开(公告)日：2023-03-07
申请号：US17477727
申请日：2021-09-17
发明人： Minsub Lee , Junbae Lee
IPC分类号： H02P27/06 , H02P29/024
摘要： A power module for driving a motor includes: a positive bus input voltage terminal; a phase terminal for each motor phase; an inverter including a half bridge for each motor phase, each half bridge including a high-side power switch electrically coupled between the positive bus input voltage terminal and respective phase terminal, and a low-side power switch electrically coupled between the respective phase terminal and ground; a first driver circuit for driving a gate terminal of each power switch; a protection switch electrically coupled in series between the positive bus input voltage terminal and each high-side power switch, and having a greater short-circuit withstand time and a lower short-circuit current level compared to each inverter power switch; and a second driver circuit for turning on the protection switch during normal operation and turning off the protection switch in response to a detected short circuit condition.
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公开(公告)号：US20230061412A1
公开(公告)日：2023-03-02
申请号：US17794615
申请日：2021-01-22
申请人： MANDO CORPORATION
发明人： Kyoungjin JOO , Jinkuk PARK
摘要： An electronic brake system includes: a master cylinder connected to a brake pedal; a hydraulic pressure supply device including a motor that generates a rotational force and a hydraulic piston movably accommodated in a pressure chamber, and configured to generate a hydraulic pressure by a movement of the hydraulic piston; a hydraulic control unit configured to control a flow of the hydraulic pressure transferred to a wheel cylinder from the hydraulic pressure supply device; a hydraulic block in which the master cylinder, the hydraulic pressure supply device and the hydraulic control unit are integrated; and a controller configured to control the motor and the hydraulic control unit, wherein, during an anti-lock braking system (ABS) operation, the controller is configured to generate vibration in the motor by supplying the motor with an excitation current for exciting the motor to notify a driver of the ABS operation by vibration of the brake pedal.
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