The invention provides a vehicle speed control method and device. The method comprises the following steps: receiving an input key request signal and processing the key request signal; judging the request control state; judging a vehicle speed control condition according to the state of the whole vehicle; judging whether vehicle speed control conditions are met or not, and if not, vehicle speed control is not conducted; if the vehicle speed control condition is met, calculating a vehicle speed control state according to the vehicle speed control condition and the request control state; judgingwhether the vehicle speed control state is a vehicle speed control non-operation state, and if so, controlling the target vehicle speed to be equal to 0; if not, calculating a vehicle speed control target vehicle speed according to the vehicle speed control state and the vehicle speed control condition; performing PID adjustment according to the deviation between the target vehicle speed and theactual vehicle speed to calculate vehicle speed control request torque; and controlling the vehicle speed according to the calculation result of the vehicle speed control request torque. The smoothness and the stability of vehicle speed and torque adjustment in different control states are ensured.

    本发明提供一种车速控制方法、装置,该方法包括如下步骤:接收输入的按键请求信号并对按键请求信号进行处理;进行请求控制状态的判断处理;根据车辆整车状态进行车速控制条件的判断;判断是否满足车速控制条件,若否,不进行车速控制;若满足车速控制条件,根据车速控制条件和请求控制状态计算车速控制状态;判断车速控制状态是否是车速控制无操作状态,若是,车速控制目标车速等于0;若否,根据车速控制状态和车速控制条件计算车速控制目标车速;根据目标车速和实际车速的偏差进行PID调节计算车速控制请求扭矩;根据车速控制请求扭矩的计算结果进行车速控制。保证不同控制状态下的车速和扭矩调节平顺性和稳定性。


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    Title :

    Vehicle speed control method and device


    Additional title:

    一种车速控制方法、装置


    Contributors:
    LU ZHIQIANG (author) / SUN GUANGDI (author) / QI SHANDONG (author) / LI YI (author)

    Publication date :

    2020-11-06


    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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