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    BRAKE SYSTEM AND METHOD FOR FOUR-WHEEL DRIVE ELECTRIC VEHICLE AND ELECTRIC VEHICLE
    1.
    发明申请
    BRAKE SYSTEM AND METHOD FOR FOUR-WHEEL DRIVE ELECTRIC VEHICLE AND ELECTRIC VEHICLE 审中-公开
    四轮驱动电动车和电动车的制动系统及方法

    公开(公告)号：WO2017025041A1

    公开(公告)日：2017-02-16

    申请号：PCT/CN2016/094455

    申请日：2016-08-10

    Applicant: BYD COMPANY LIMITED

    Inventor： LIAN, Yubo ,  LING, Heping ,  MENG, Fanliang ,  XIONG, Yanfei ,  CHEN, Weiqiang

    IPC: B60L7/18

    CPC classification number: B60L7/18 ,  B60L3/0076 ,  B60L7/26 ,  B60L11/1862 ,  B60L15/2009 ,  B60L2220/46 ,  B60L2240/12 ,  B60L2250/26 ,  B60L2260/28 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/72 ,  Y02T10/7275

    Abstract: A brake system (100) and a brake method for a four-wheel drive electric vehicle and a four-wheel drive electric vehicle,in the system, according to a brake mode of the electric vehicle, a state of charge of a battery pack (4) and a vehicle speed, a first brake control unit controls a motor (6) to brake a wheel (9) through a motor controller (2) and a second brake control unit controls a brake actuator (12) to brake the wheels (9). The first brake control unit further determines whether a brake torque of the brake actuator (12) on the wheels (9) fails. If yes, the first brake control unit controls the motor (6) to brake the corresponding wheel (9) through the motor controller (2).

    Abstract translation: 一种用于四轮驱动电动车辆和四轮驱动电动车辆的制动系统（100）和制动方法，在该系统中，根据电动车辆的制动模式，电池组的充电状态（ 4）和车速，第一制动控制单元通过电动机控制器（2）控制电动机（6）来制动车轮（9），并且第二制动控制单元控制制动致动器（12）以制动车轮 9）。 第一制动控制单元还确定车轮（9）上的制动致动器（12）的制动转矩是否失效。 如果是，则第一制动控制单元控制马达（6）通过马达控制器（2）制动相应的轮（9）。

    STEEP SLOPE SLOW DESCENDING SYSTEM FOR VEHICLE AND CONTROL METHOD THEREFOR
    4.
    发明公开
    STEEP SLOPE SLOW DESCENDING SYSTEM FOR VEHICLE AND CONTROL METHOD THEREFOR 审中-公开

    公开(公告)号：EP3511190A1

    公开(公告)日：2019-07-17

    申请号：EP17848054.7

    申请日：2017-08-25

    Applicant: BYD Company Limited

    Inventor： LING, Heping ,  MENG, Fanliang ,  SHI, Mingchuan ,  XIONG, Yanfei ,  CHEN, Weiqiang

    IPC: B60K31/00

    Abstract: The present disclosure provides a hill descent system for a vehicle and a control method thereof. The hill descent system comprises: a plurality of wheels; a plurality of wheel speed sensors, corresponding to the plurality of wheels and used for detecting the speeds of the plurality of wheels; a plurality of motors, corresponding to the plurality of wheels and used for selectively driving or braking the plurality of wheels; a plurality of motor controllers, respectively connected to the plurality of motors and used for controlling the working states of the plurality of motors; a plurality of resolver sensors, corresponding to the plurality of motors and used for detecting the rotational speeds of the plurality of motors; and a vehicle control unit, respectively connected to the plurality of wheel speed sensors, the plurality of motor controllers and the plurality of resolver sensors, and used for determining the actual downhill speed of the vehicle based on the speeds of the plurality of wheels and the rotational speeds of the plurality of motors, and controlling the plurality of motor controllers according to the actual downhill speed of the vehicle to adjust the working states of the plurality of motors.

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