The invention discloses an engine cooling water temperature control method, which comprises the following steps of: calculating a high-temperature characteristic value of the engine cooling water temperature according to a water temperature obtained in real time according to a working condition and an engine water temperature rising trend, and setting a battery electric quantity margin coefficient; an engine cooling water temperature high-temperature characteristic value and a battery electric quantity margin coefficient are output through a fuzzy controller, and a power battery SOC allowable charging change rate correction coefficient basic value output by the fuzzy controller and a correction factor obtained through calibration are combined to obtain a power battery SOC allowable charging change rate correction coefficient. And correcting the SOC allowable charging change rate correction coefficient of the power battery.

    本发明公开了一种发动机冷却水温控制方法,该方法根据工况实时获取水温和发动机水温上升的趋势来计算出发动机冷却水温高温特征值,并设定电池电量裕度系数,通过将模糊控制器将发动机冷却水温高温特征值、电池电量裕度系数输出,结合模糊控制器输出的动力电池SOC允许充电变化速率修正系数基础值和通过标定获得的修正因子,得到动力电池SOC允许充电变化速率修正系数,进而对动力电池SOC允许充电变化速率修正系数进行修正。


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    Title :

    Engine cooling water temperature control method


    Additional title:

    一种发动机冷却水温控制方法


    Contributors:
    ZHANG CHUNJIAO (author) / ZHENG HANLIN (author) / LU PAN (author)

    Publication date :

    2022-08-09


    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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