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公开(公告)号：US20230327565A1
公开(公告)日：2023-10-12
申请号：US18332903
申请日：2023-06-12
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Wei ZHANG , Zhaoxue CUI , Ningbo FENG
CPC classification number: H02M3/33573 , B60L50/60 , B60R16/033 , H02J7/0013 , H02J7/02 , H02M3/33576 , H02M7/219 , H02J2207/20 , B60L2210/10
Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current (DC)/DC conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.
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公开(公告)号：US20220224271A1
公开(公告)日：2022-07-14
申请号：US17710726
申请日：2022-03-31
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhaoxue CUI , Wei ZHANG , Ningbo FENG
Abstract: This application provides an energy conversion apparatus, a motor, a power system, and a vehicle. The energy conversion apparatus may integrate a motor drive function by using a three-phase bridge arm converter and a motor winding, and integrate an alternating current charging function by using a two-phase two-bridge-arm converter and a transformer. In this way, the energy conversion apparatus can integrate the charging function and the motor drive function. When the energy conversion apparatus is installed on an electric vehicle, a vehicle integration level can be increased, a structure layout of the electric vehicle can be simplified, and costs and a volume of the electric vehicle can be reduced.
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公开(公告)号：US20240174098A1
公开(公告)日：2024-05-30
申请号：US18504230
申请日：2023-11-08
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ping LI , Tao LIANG , Ningbo FENG
IPC: B60L53/22 , B60L53/16 , B60L53/302 , H02J7/00 , H02J7/02
CPC classification number: B60L53/22 , B60L53/16 , B60L53/302 , H02J7/0013 , H02J7/0042 , H02J7/0068 , H02J7/02 , B60L2210/30 , H02J2207/20
Abstract: A vehicle-mounted charging apparatus and a vehicle. The vehicle-mounted charging apparatus includes a power conversion circuit and a housing. The housing is configured to accommodate the power conversion circuit. The power conversion circuit is configured to convert an input power supply into at least one of a first direct current or a second direct current. A plurality of electrical interfaces is disposed on an electrical interface mounting surface in the housing. The plurality of electrical interfaces includes one input power interface, two first direct current output interfaces, and one second direct current output interface. The input power interface is configured to be connected to an input end of the power conversion circuit. The plurality of electrical interfaces is disposed on a same surface, so that the external interfaces are appropriately arranged and highly integrated. This facilitates a vehicle layout, improves assembly simplicity.
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公开(公告)号：US20240128914A1
公开(公告)日：2024-04-18
申请号：US18364666
申请日：2023-08-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yankun XU , Ningbo FENG , Xueliang ZHANG
CPC classification number: H02P27/08 , B60L15/007
Abstract: A powertrain, a control method, and a hybrid electric vehicle. The powertrain includes a motor controller unit and a motor. The motor controller unit includes N bridge arms, and the motor includes N motor windings corresponding to the N bridge arms. Each of the N bridge arms includes a first end and a second end, the first end of each bridge arm is connected to a positive bus, the second end of each bridge arm is connected to a negative bus, a midpoint of each bridge arm is connected to one end of one motor winding, the other end of each of the N motor windings is connected to one end of a power battery, and the other end of the power battery is connected to the positive bus or the negative bus.
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Patent Agency Ranking
公开(公告)号：US20220286057A1
公开(公告)日：2022-09-08
申请号：US17826482
申请日：2022-05-27
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Wei ZHANG , Zhaoxue CUI , Ningbo FENG
Abstract: An energy conversion system, an energy conversion method, and a power system. The energy conversion system may include a bridge arm conversion module, a direct current to direct current (DC/DC) conversion module, a motor, a bus capacitor, and a control module. The control module may be configured to control a bridge arm switch action in the bridge arm conversion module, drive the motor based on an alternating current input voltage supplied by a power supply, form a bus voltage at two ends of the bus capacitor, and control the DC/DC conversion module to charge a traction battery and an auxiliary battery based on the bus voltage. The traction battery and the auxiliary battery can be charged while the motor is driven, thereby achieving higher energy conversion efficiency, low costs, and strong applicability.
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公开(公告)号：US20250010730A1
公开(公告)日：2025-01-09
申请号：US18763284
申请日：2024-07-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yang CHENG , Ningbo FENG , Wei MO
Abstract: A direct current charging apparatus, a powertrain, and an electric vehicle. The direct current charging apparatus which includes a direct current charging interface, a switch module, and a direct current voltage conversion module is configured to charge power battery of the electric vehicle. The direct current charging interface is configured to connect a positive electrode and a negative electrode of a power supply apparatus and a positive electrode and a negative electrode of the power battery to form a charging loop. The switch module is configured to connect or disconnect the charging loop. The direct current voltage conversion module is configured to output a preset direct current voltage to the positive electrode and the negative electrode of the power supply apparatus. When the charging loop between the power battery and a charging pile is connected again, charging can be resumed without re-swiping card/re-scanning QR code.
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公开(公告)号：US20230396093A1
公开(公告)日：2023-12-07
申请号：US18451176
申请日：2023-08-17
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ningbo FENG , Shaofei WANG , Jingzhou WEI , Xueliang ZHANG
IPC: H02J7/14 , H02K1/16 , H02K1/2706 , H02M7/217
CPC classification number: H02J7/14 , H02K1/16 , H02K1/2706 , H02M7/217 , B60L50/60
Abstract: A motor, a charging apparatus and a powertrain. The motor of the charging apparatus includes a rotor, a stator, a primary coil, and a secondary coil. The stator includes a stator core. The primary coil is wound around a yoke part of the stator core, and the primary coil is coupled to an external power supply. The secondary coil is wound around the yoke part of the stator core, and the secondary coil and the primary coil are wound around different groove structures inside the stator core. The primary coil and the secondary coil implement coupling voltage transformation through the stator core, to step up or step down an output voltage of the external power supply.
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公开(公告)号：US20230226919A1
公开(公告)日：2023-07-20
申请号：US18151610
申请日：2023-01-09
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Jiqing DOU , Quanwu WANG , Ningbo FENG , Bing CHEN , Ping LI
CPC classification number: B60L3/0069 , B60L53/20 , H02H7/1213 , B60L2210/10 , B60L53/16
Abstract: An electric power conversion system and a vehicle, to improve vehicle availability. The electric power conversion system may receive electric energy provided by a first power supply, and supply power to at least one load module. The system may include a first direct current to direct current conversion module and a second direct current to direct current conversion module. The first direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module. The second direct current to direct current conversion module is configured to perform voltage conversion processing on the electric energy and provide the electric energy to the at least one load module.
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公开(公告)号：US20230147551A1
公开(公告)日：2023-05-11
申请号：US18149261
申请日：2023-01-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yue CHEN , Xueliang ZHANG , Ningbo FENG
Abstract: An electric drive system is connected to a power battery pack to drive a motor, the motor includes an exciting winding, and the electric drive system includes a bus, a three-level inverter circuit, an electric excitation circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus midpoint, and the second bus capacitor is connected between the negative bus and the bus midpoint. A first input terminal of the electric excitation circuit is connected in parallel to the first bus capacitor, a second input terminal of the electric excitation circuit is connected in parallel to the second bus capacitor, and an output terminal of the electric excitation circuit is connected to the exciting winding of the motor.
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