The invention discloses a vehicle body height adjusting method. The method comprises the steps that multiple actual vehicle body heights obtained by conducting vehicle body height adjustment on a vehicle for multiple times are obtained; respectively determining a plurality of vehicle body height differences between the plurality of actual vehicle body heights and a target vehicle body height of the vehicle; the multiple vehicle body height differences and the change rates corresponding to the multiple vehicle body height differences serve as input variables to be input into a fuzzy PID controller, and a constant-speed reaching law coefficient output by the fuzzy PID controller is obtained; taking a constant-speed reaching law coefficient output by the fuzzy PID controller as a constant-speed reaching law coefficient of an SMC sliding mode controller, and obtaining a sliding mode control quantity output by the SMC sliding mode controller; the sliding film control quantity is the opening value of an electromagnetic valve of the air spring; and under the condition that the inflation speed and the deflation speed of the air spring are not changed, the vehicle body height of the vehicle is adjusted once based on the opening value of the electromagnetic valve.

    本申请公开了一种车身高度调节方法,所述方法包括:获取对车辆进行多次车身高度调节得到的多个实际车身高度;分别确定所述多个实际车身高度与车辆的目标车身高度之间的多个车身高度差;将所述多个车身高度差以及所述多个车身高度差对应的变化率作为输入变量输入到模糊PID控制器,并获取模糊PID控制器输出的等速趋近律系数;将所述模糊PID控制器输出的等速趋近律系数作为SMC滑膜控制器的等速趋近律系数,并获取所述SMC滑膜控制器输出的滑膜控制量;所述滑膜控制量为空气弹簧的电磁阀的开度值;在所述空气弹簧的充气与放气的速度不变的情况下,基于所述电磁阀的开度值,对所述车辆进行一次车身高度调节。


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    Title :

    Vehicle body height adjusting method, device and equipment and storage medium


    Additional title:

    车身高度调节方法、装置、设备及存储介质


    Contributors:
    WU DAIBING (author) / ZHOU YANHE (author) / WANG SHENG (author) / CHENG JINHUA (author)

    Publication date :

    2024-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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