The invention provides a vehicle speed control method and system based on an off-country cruise function, and the method is operated on a vehicle body electronic stability control system, and comprises the following steps: receiving a switch request signal for starting the off-country cruise function, judging whether one of the conditions that TOD is in a 4L mode, a gearbox is in a D gear or an electronic parking brake system is released is met, if yes, starting the off-country cruise function, and if not, starting the off-country cruise function; if so, activating a cross-country cruise function; after the brake pedal loosening command is received, an engine torque lifting control command is sent to an engine management system to enable the engine management system to execute engine torque lifting control; meanwhile, the current vehicle speed is calculated and compared with the cruising target vehicle speed, and the engine management system is continuously controlled to adjust the engine torque, so that the current vehicle speed is equal to the cruising target vehicle speed. Based on the method, the invention further provides a vehicle speed control system based on the cross-country cruise function. According to the invention, the vehicle achieves the performance goals of simple, comfortable and safe driving.

    本发明提出了一种基于越野巡航功能的车速控制方法和系统,该方法运行于车身电子稳定控制系统,包括:接收开启越野巡航功能的开关请求信号,判断是否满足TOD为4L模式、变速箱D挡或者电子驻车制动系统释放的其中一个条件,如果满足,则激活越野越野巡航功能;接收制动踏板松开命令后,向发动机管理系统发送发动机扭矩升降控制指令使发动机管理系统执行发动机扭矩升降控制;同时计算当前车速,并将当前车速与巡航目标车速进行比较,不断控制发动机管理系统调整发动机扭矩,使当前车速等于巡航目标车速。基于该方法,还提出了一种基于越野巡航功能的车速控制系统。本发明使车辆达到驾驶简单、舒适、安全的性能目标。


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    Title :

    Vehicle speed control method and system based on cross-country cruise function


    Additional title:

    一种基于越野巡航功能的车速控制方法和系统


    Contributors:
    ZHANG WEN (author) / LI CHAO (author) / PANG ZHIQIANG (author) / HUANG RUBING (author) / ZHANG RULIN (author)

    Publication date :

    2023-09-19


    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



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