The invention provides an anti-pinch detection method and device for a vehicle body closing system, and belongs to the technical field of vehicles. The method comprises the steps that a temperature coefficient corresponding to the current environment temperature is obtained through calculation according to a pre-calibrated relational expression between the environment temperature and the temperature coefficient when the vehicle body closing system carries out the closing operation; when the motor rotor angular speed difference value is larger than a preset difference threshold value, it is determined that a moving part of the vehicle body closing system just makes contact with an obstacle, the speed coefficient corresponding to the motor rotor angular speed obtained in the previous periodis obtained through calculation according to a pre-calibrated relational expression between the motor rotor angular speed and the speed coefficient, and the clamping force is calculated by combining the speed coefficient and the temperature coefficient. The speed coefficient considers the influence of the angular velocity of a motor rotor on the anti-clamping force when the moving part just contacts the obstacle, and the larger the angular velocity of the motor rotor is, the larger the speed coefficient is, so that a reversal mark is given earlier, and the consistency of the anti-pinch force under different power supply voltages is ensured.

    本发明提供了一种车身闭合系统的防夹检测方法及装置,属于车辆技术领域,方法包括在车身闭合系统执行关闭操作时,根据预先标定的环境温度与温度系数的关系式,计算得到与当前环境温度对应的温度系数;并在电机转子角速度差值大于预设的差值阈值时,确定车身闭合系统的移动部件刚接触障碍物,并根据预先标定的电机转子角速度与速度系数的关系式,计算得到与前一周期获取的电机转子角速度对应的速度系数,结合速度系数和温度系数计算夹紧力,速度系数考虑到了移动部件刚接触障碍物时电机转子角速度对防夹力的影响,移动部件刚接触障碍物时电机转子角速度越大则速度系数越大,使得越早给出反转标志,保证了不同供电电压下防夹力的一致性。


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    Title :

    Anti-pinch detection method and device for vehicle body closing system


    Additional title:

    车身闭合系统的防夹检测方法及装置


    Contributors:
    LIU SHUANG (author) / JIA SHENG (author)

    Publication date :

    2020-11-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge



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