The invention discloses a vehicle emergency braking method, relates to the field of new energy vehicles, and solves the problems that in the existing vehicle driving process, prompt information cannotbe received in time when an obstacle appears in a visual blind area, so that personnel and the vehicle are injured and the like. After receiving that the distance of an obstacle sent by a PAS is near, a VCU sends a signal for requesting 0 torque to an MCU , and sends a false start braking request activation signal to an ESC and an IC; the ESC executes the false start request for parking pre-clamping and feeds back a state, and torque cannot be output by stepping on an accelerator pedal before the vehicle speed is reduced to zero; after the vehicle speed is reduced to zero, the front obstacleis still within the collision risk range, the user still intentionally and forcibly advances, the VCU forcibly limits the speed to be 3km/h or below, the VCU sends a false start canceling request activation instruction to the ESC, the ESC does not execute false start, and the VCU outputs a torque request signal to the MCU according to the intention of the user; and the IC receives the false startrequest signal of the VCU and gives a prompt.

    一种车辆紧急制动方法,涉及新能源汽车领域,解决现有驾驶车辆过程中,在视野盲区出现障碍物时无法及时收到提示信息,造成人员及车辆伤害等问题,VCU接收到PAS发送的障碍物距离较近后,VCU向MCU发送请求0扭矩的信号,同时向ESC和IC发送误启动制动请求激活信号;ESC执行误启动请求驻车预夹紧并反馈状态,车速降到零之前踩加速踏板不会输出扭矩;在车速降到零之后,前方障碍物仍在碰撞风险范围之内,用户仍有意强制行进,VCU强制限速到3km/h以下,VCU向ESC发送取消误启动请求激活指令,ESC不会执行误启动,VCU按用户的意图向MCU输出扭矩请求信号;IC接收到VCU的误启动请求信号,进行提示。


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    Title :

    Vehicle emergency braking method


    Additional title:

    一种车辆紧急制动方法


    Contributors:
    REN ZHIHONG (author) / GONG QINGWEI (author) / WU BEIBEI (author)

    Publication date :

    2021-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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