The invention discloses a constant-speed cruise control method and system for a heavy truck. The method comprises the following steps of starting the constant-speed cruise of the heavy truck; determining a cruise control target vehicle speed; calculating an engine target torque according to the cruise control target vehicle speed and the current vehicle speed; if the compensation condition is met,performing acceleration control compensation. Accurate control over the vehicle speed within the range of 10 km/h to 110 km/h is achieved, and meanwhile the problems that due to the fact that the acceleration degree of a vehicle is too large, comfort is poor, and oil consumption is increased are solved.

    本发明公开了一种重型卡车定速巡航控制的方法及系统,方法包括以下步骤:启动重型卡车的定速巡航;确定定速巡航目标车速;根据定速巡航目标车速和当前车速计算发动机目标扭矩;如果满足补偿条件则进行加速度控制补偿。本发明实现了在10km/h到110km/h范围内对车速的精确控制,同时防止了车辆加速度过大导致的舒适性差与油耗增加的问题。


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    Title :

    constant-speed cruise control method and system for heavy truck


    Additional title:

    一种重型卡车定速巡航控制的方法及系统


    Contributors:
    WANG PENGCHENG (author) / TIAN LEI (author) / GUO PENG (author) / LIU ZIHUI (author)

    Publication date :

    2020-06-16


    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



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