公开(公告)号：US11738653B2

公开(公告)日：2023-08-29

申请号：US16911353

申请日：2020-06-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Huibin Zhu ,  Heping Dai ,  Yongtao Liang ,  Weiping Liu ,  Feng Su ,  Shaohua Wang

IPC: B60L53/24 ,  B60L53/22 ,  H02J7/02 ,  H02M3/335 ,  H02P27/06 ,  H02M1/00 ,  H02M7/5387

CPC classification number: B60L53/24 ,  B60L53/22 ,  H02J7/02 ,  H02M3/33507 ,  H02M7/53875 ,  H02P27/06 ,  B60L2210/10 ,  B60L2210/40 ,  H02M1/007

Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes a battery, a Direct Current (DC) bus connected to the battery, and a DC to DC converter connected to the battery in parallel with the DC bus. A Motor Control Unit (MCU) is connected between the DC to DC converter and an electric motor. An Alternating Current (AC) port is connected to the electric motor. Switches connect the DC bus and an output of the DC to DC converter in series as an input to the MCU in a drive mode and disconnect the DC bus from the MCU in a charge mode.

公开(公告)号：US11532978B2

公开(公告)日：2022-12-20

申请号：US17139613

申请日：2020-12-31

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yongtao Liang ,  Weiping Liu ,  Feng Su

IPC: B60L53/22 ,  H02M1/00 ,  H02M3/335 ,  H02M3/00

Abstract: A power conversion module, a vehicle-mounted charger, and an electric vehicle may be used in the field of new energy vehicles. The power conversion module includes a power factor correction PFC module and a first direct current-direct current DC-DC converter. A first primary circuit of the first DC-DC converter has a first bridge arm, a second bridge arm, a third bridge arm, and a fourth bridge arm. A first switch is disposed between the first bridge arm and an inductor at an interface of the PFC module, and a second switch is disposed between the third bridge arm and another interface of the PFC module. When the first switch and the second switch are turned on, a secondary circuit of the first DC-DC converter may implement a function of a primary circuit of a second DC-DC converter; the second bridge arm and the fourth bridge arm may implement a function of a secondary circuit of the second DC-DC converter; and the first bridge arm, the third bridge arm, the inductor of the PFC module, and a capacitor of the PFC module may form an inverter module, so as to implement an inverse discharging function.