The invention provides a new energy automobile constant speed cruise deceleration control method and system, and the method comprises the steps: obtaining a constant speed cruise starting request, and activating a vehicle constant speed cruise mode according to the starting request; in the cruise control mode, when it is recognized that the target vehicle speed set by the user is lower than the current vehicle speed, the speed reduction control function is activated, and the target speed reduction torque needed for reducing the speed of the vehicle from the current vehicle speed to the target vehicle speed is calculated; performing deceleration control on the vehicle by adopting a corresponding deceleration control mode according to the working condition of the vehicle; and when the current vehicle speed of the vehicle is reduced to the target vehicle speed, quitting the corresponding deceleration control mode. According to the method, the constant-speed cruise deceleration requirement of the vehicle can be met under different working conditions, the constant-speed cruise deceleration performance of the vehicle is improved, the applicability and safety of constant-speed cruise are improved, the risk that constant-speed cruise frequently exits due to large fluctuation of the vehicle speed is reduced, the application scenarios of constant-speed cruise are increased, and the application prospect of the constant-speed cruise is widened. And better constant-speed cruise experience is brought to the user.

    本发明提供一种新能源汽车定速巡航减速控制方法和控制系统,其中,控制方法包括:获取定速巡航的开启请求,根据开启请求激活车辆定速巡航模式;在定速巡航模式下,当识别到用户设置的目标车速低于当前车速时,激活减速控制功能,计算车辆由当前车速减速至目标车速所需的目标减速扭矩;根据车辆的工况,采取对应的减速控制方式对车辆进行减速控制;当车辆的当前车速减小至目标车速时,退出对应的减速控制方式。本发明能够在不同工况下满足车辆的定速巡航减速需求,提升车辆的定速巡航减速性能,提高定速巡航的适用性及安全性,减小因车速的波动较大带来的定速巡航频繁退出风险,增加定速巡航的应用场景,进而带给用户更好的定速巡航体验。


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    Title :

    New energy automobile cruise control deceleration control method and control system


    Additional title:

    一种新能源汽车定速巡航减速控制方法和控制系统


    Contributors:
    WU BO (author) / ZHANG MING (author) / ZENG KE (author) / ZHANG YA (author) / CHENG HAO (author)

    Publication date :

    2023-04-28


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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