公开(公告)号：US20210215414A1

公开(公告)日：2021-07-15

申请号：US17216196

申请日：2021-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haomang Hu ,  Zhiwei Wu ,  Xiaokang Liu ,  Jing Jiang ,  Zuqi Liu

IPC: F25B49/02 ,  F25B13/00 ,  B60H1/00

Abstract: A vehicle temperature management system includes a refrigerant circulation system including a compressor, a first heat exchanger, a depressurization apparatus, a heat exchange plate, a four-way valve, and a second heat exchanger that is configured to heat a first refrigerant that flows to an input port when a management object needs to be cooled through the heat exchange plate, and cool the first refrigerant that flows to the heat exchange plate when the management object needs to be heated through the heat exchange plate.

公开(公告)号：US20200292041A1

公开(公告)日：2020-09-17

申请号：US16891679

申请日：2020-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yihong Zheng ,  Xiaokang Liu

IPC: F16H37/08 ,  F16H48/36 ,  B60K1/02 ,  B60L15/20 ,  B60K1/04 ,  B60K17/16

Abstract: This disclosure provides a reducer (100), an electric vehicle drive system, and a control method for the electric vehicle drive system. In the reducer (100), a first countershaft (2a) is transmittingly connected to a first input shaft (1a), a second countershaft (2b) is transmittingly connected to a second input shaft (1b), and a centralized driving piece (5) is transmittingly connected to a power input end of a differential apparatus (4). A first transmission assembly (X1) and a second transmission assembly (X2) are respectively configured to connect or disconnect power transmission between the first countershaft (2a) and the centralized driving piece (5) and connect or disconnect transmission assembly power transmission between the second countershaft (2b) and the centralized driving piece (5). A first output shaft (3a) and a second output shaft (3b) are transmittingly connected to two power output ends of the differential apparatus (4) respectively.

公开(公告)号：US10361568B2

公开(公告)日：2019-07-23

申请号：US15858210

申请日：2017-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Yang ,  Xiaokang Liu ,  Zhiwei Wu

IPC: H02J7/00 ,  H01M10/44 ,  H02J7/02 ,  B60L58/22 ,  H01M2/10 ,  H01M10/42

Abstract: An energy balancing apparatus and method, and a terminal are provided in the battery field. The apparatus may include a controlled alternating current energy supply, an alternating current energy distribution circuit, filter circuits, rectifier circuits, and a balance control circuit. The controlled alternating current energy supply and an input port of the alternating current energy distribution circuit are connected in parallel, each output port of the alternating current energy distribution circuit and an input side of a corresponding filter circuit are connected in parallel, an output side of each filter circuit and an alternating current side of a corresponding rectifier circuit are connected in parallel, a direct current side of each rectifier circuit and a corresponding battery cell are connected in parallel, each battery cell is connected to the balance control circuit, and the balance control circuit is connected to the controlled alternating current energy supply.