An automobile adaptive cruise control method for dynamically adjusting an expected safe distance is characterized in that a safe distance strategy switching module, an MPC controller, an acceleration control conversion module and a CarSim vehicle model are included in the method; the safe distance switching strategy module is used for determining an expected safe distance and an expected speed; the MPC controller solves the acceleration of the automobile according to the expected safety distance, the expected speed and the automobile driving state; the CarSim vehicle model is used for outputting the actual driving state of the vehicle, including the speed of the vehicle, the acceleration of the vehicle, the relative speed, the relative distance, the gear and the rotating speed of an engine; and the acceleration control conversion module converts the acceleration optimized by the MPC into the throttle opening and the brake master cylinder pressure, and inputs the throttle opening and the brake master cylinder pressure to the CarSim vehicle model to realize the safety cooperative control of the self-adaptive cruise vehicle and the front vehicle.

    一种期望安全距离动态调节的汽车自适应巡航控制方法,其特征在于,该方法包括切换安全距离策略模块、MPC控制器、加速度控制转换模块和CarSim车辆模型;切换安全距离策略模块用于确定期望安全距离与期望速度;MPC控制器根据期望安全距离、期望速度以及汽车行驶状态,求解出汽车的加速度;CarSim车辆模型用于输出汽车的实际行驶状态,包括本车速度、本车加速度、相对速度、相对距离、挡位和发动机转速;加速度控制转换模块将MPC优化出的加速度转换为节气门开度和制动主缸压力,并输入给CarSim车辆模型,实现自适应巡航车辆与前车安全协同控制。


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    Title :

    Automobile self-adaptive cruise control method for dynamically adjusting expected safe distance


    Additional title:

    一种期望安全距离动态调节的汽车自适应巡航控制方法


    Contributors:
    LU XIAOHUI (author) / FAN YANGQUN (author) / DONG XUSHENG (author) / LYU XINZHAN (author) / ZHENG XINYI (author) / LI SHAOSONG (author) / ZHANG NA (author)

    Publication date :

    2023-08-15


    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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