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    Brake Assistance System and Brake Method
    2.
    发明申请
    Brake Assistance System and Brake Method 有权

    公开(公告)号：US20210291665A1

    公开(公告)日：2021-09-23

    申请号：US17339543

    申请日：2021-06-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Fengyu Liu ,  Zhuofan Ying ,  Xiaokang Liu

    IPC: B60L7/26 ,  F16H37/06 ,  B60T17/22 ,  B60T8/172 ,  B60T8/171 ,  B60T8/92 ,  B60T13/74 ,  B60T13/58

    Abstract: A brake assistance system comprising a brake pedal, a booster motor, a simulation motor, a planetary row coupling node, and a brake master cylinder, where the brake master cylinder is configured to provide a braking force for the vehicle. The brake pedal, the booster motor, and the simulation motor are separately coupled to the planetary row coupling node. The planetary row coupling node is configured to convert a torque of the brake pedal, a torque output by the booster motor, and a torque output by the simulation motor into an acting force acting on a piston rod in the brake master cylinder.

    Equalization current adjustment method and related apparatus
    4.
    发明授权
    Equalization current adjustment method and related apparatus 有权

    公开(公告)号：US10581254B2

    公开(公告)日：2020-03-03

    申请号：US15948833

    申请日：2018-04-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Rui Yang ,  Xiaokang Liu ,  Zhiwei Wu

    IPC: H02J7/00 ,  H02J7/14 ,  H02M3/335 ,  H01M2/10

    Abstract: An equalization current adjustment method includes: determining a battery unit to be equalized in a battery pack, and obtaining a current actual equalization current value of the battery unit; and when it is determined that a difference between the current actual equalization current value of the battery unit and a target equalization current value does not fall within a range of a preset threshold, adjusting a fundamental amplitude of an alternating current power supply of a target circuit on which the battery unit is located and/or a voltage gain of the target circuit, so that the difference between the current actual equalization current value of the battery unit and the target equalization current value falls within the range of the preset threshold.

    Battery micro-short circuit detection method and apparatus
    6.
    发明授权
    Battery micro-short circuit detection method and apparatus 有权

    公开(公告)号：US11867765B2

    公开(公告)日：2024-01-09

    申请号：US16447600

    申请日：2019-06-20

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Bingxiao Liu ,  Rui Yang ,  Xiaokang Liu

    IPC: G01R31/36 ,  G01R31/367 ,  G01R31/396 ,  G01R31/3842 ,  H01M10/48 ,  G01R31/52

    CPC classification number: G01R31/367 ,  G01R31/36 ,  G01R31/3644 ,  G01R31/3842 ,  G01R31/396 ,  G01R31/52 ,  H01M10/48

    Abstract: A battery micro-short circuit detection method and apparatus are disclosed. The method includes: obtaining a target initial battery parameter value of a target battery at an initial moment, and determining a reference initial battery parameter value of a virtual reference battery at the initial moment, where a response of the virtual reference battery is the same as a response of the target battery when a same excitation condition is given; obtaining a target battery parameter value of the target battery at a specified moment; determining a reference battery parameter value of the virtual reference battery at the specified moment based on the target battery parameter value and the reference initial battery parameter; and calculating a difference between the target battery parameter value and the reference battery parameter value, and determining, based on the difference, that the target battery is micro-short-circuited.

    Apparatus and system for balancing energy in battery pack
    7.
    发明授权
    Apparatus and system for balancing energy in battery pack 有权

    公开(公告)号：US11211815B2

    公开(公告)日：2021-12-28

    申请号：US16285969

    申请日：2019-02-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Rui Yang ,  Ming Liu ,  Xiaokang Liu

    IPC: H02J7/02 ,  H02J50/10 ,  H02J7/00 ,  H01F38/14 ,  H02J50/40 ,  H01M10/44 ,  B60L58/22

    Abstract: An apparatus and a system for balancing energy in a battery pack are provided, to implement balanced energy distribution among individual batteries in a battery pack. The apparatus includes: a transmitting coil, configured to transmit an electromagnetic wave generated by an input first alternating current to multiple receiving coils; the multiple receiving coils, where parameter values of all receiving coils of the multiple receiving coils are the same, all the receiving coils are coupled to the transmitting coil at a same coupling strength, and each receiving coil is configured to receive the electromagnetic wave transmitted by the transmitting coil, and generate and output a second alternating current according to the electromagnetic wave.

    Reducer, electric vehicle drive system, control method for electric vehicle drive system, and electric vehicle
    8.
    发明授权
    Reducer, electric vehicle drive system, control method for electric vehicle drive system, and electric vehicle 有权

    公开(公告)号：US10927934B2

    公开(公告)日：2021-02-23

    申请号：US16891679

    申请日：2020-06-03

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yihong Zheng ,  Xiaokang Liu

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

    Abstract: A reducer, an electric vehicle drive system with the reducer, and a control method for the electric vehicle drive system with the reducer comprises, in a reducer, a first countershaft is transmittingly connected to a first input shaft, a second countershaft is transmittingly connected to a second input shaft, and a centralized driving piece is transmittingly connected to a power input end of a differential apparatus. A first transmission assembly and a second transmission assembly are respectively configured to connect or disconnect power transmission between the first countershaft and the centralized driving piece and connect or disconnect transmission assembly power transmission between the second countershaft and the centralized driving piece. A first output shaft and a second output shaft are transmittingly connected to two power output ends of the differential apparatus respectively.

    Energy balancing circuit and energy balancing apparatus
    9.
    发明授权
    Energy balancing circuit and energy balancing apparatus 有权

    公开(公告)号：US10923922B2

    公开(公告)日：2021-02-16

    申请号：US16456157

    申请日：2019-06-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Rui Yang ,  Chengbin Ma ,  Xiaokang Liu

    IPC: H02J7/00 ,  H02J50/12 ,  H02J7/02

    Abstract: Example energy balancing circuits and energy balancing apparatus are described. One example energy balancing circuit includes a coupling branch and a receiving branch. The coupling branch includes one sending coil and at least one receiving coil. Each receiving coil is coupled to the sending coil in an electromagnetic induction manner. The receiving branch includes at least one receiving subbranch. Each receiving coil is uniquely connected to one receiving subbranch. Each receiving subbranch includes a rectifier branch. A first receiving subbranch in the at least one receiving subbranch further includes a first boost branch connected to both a first rectifier branch and a first receiving coil. The first receiving coil is a receiving coil connected to the first receiving subbranch.

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