The invention relates to a rotation speed control method and device for a cooling fan and a vehicle. According to the rotation speed control method and device for the cooling fan and the vehicle, thetemperature and temperature change information of a cooling medium are obtained; when the temperature of the cooling medium is smaller than a target temperature set value, if the temperature of the cooling medium is in arising state, the rotation speed of the fan is controlled to be decreased at a rotating speed change rate smaller than or equal to a rotating speed small-amplitude decreasing change rate threshold value; and if the temperature of the cooling medium in a decreasing state, the rotation speed of the fan is controlled to be decreased at a rotating speed change rate larger than or equal to a rotating speed large-amplitude decreasing change rate threshold value; when the temperature of the cooling medium is greater than the target temperature set value, and if the temperature ofthe cooling medium is in a rising state, the rotation speed of the fan is controlled to be increased at a rotating speed change rate greater than or equal to a rotating speed large-amplitude increasechange rate threshold; and if in temperature of the cooling medium is in a decreasing state, the rotation speed of the fan is controlled to be increased at a rotating speed change rate smaller than orequal to a rotating speed small-amplitude increase change rate threshold value; the rotation speeds of the fan in different states is controlled; the cooling medium accurately and rapidly approachestarget temperature; and a speed regulation effect and efficiency are improved.

    本发明涉及一种冷却用风扇的转速控制方法及装置、车辆。通过获取冷却介质的温度及温度变化信息,当冷却介质温度小于目标温度设定值时,若处于上升状态时,控制风扇转速以小于或者等于转速小幅度减小变化率阈值的转速变化率减小,若处于下降状态时,控制风扇转速以大于或者等于转速大幅度减小变化率阈值的转速变化率减小;当冷却介质温度大于目标温度设定值时,若处于上升状态时,控制风扇转速以大于或者等于转速大幅度增加变化率阈值的转速变化率增加,若处于下降状态时,控制风扇转速以小于或者等于转速小幅度增加变化率阈值的转速变化率增加,对不同的状态的控制风扇转速,实现了冷却介质精准、快速的接近目标温度,提高了调速效果和效率。


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    Title :

    Rotation speed control method and device for cooling fan and vehicle


    Additional title:

    一种冷却用风扇的转速控制方法及装置、车辆


    Contributors:
    WANG HONGCHAO (author) / TIAN JIE'AN (author) / LIU JICHENG (author)

    Publication date :

    2020-05-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS



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