The invention relates to the field of automobile manufacturing, and concretely relates to a passive monitoring system for an automobile tire. The system comprises a sensor module, a wheel detection module and a receiving and processing module, the sensor module is connected with the wheel detection module through a signal line, and the wheel detection module is wirelessly connected with the receiving and processing module through a WIFI signal. And the wheel detection module is adhered to the surface of the airtight layer of the automobile tire. The wheel detection module is provided with an energy harvester, the lower-layer flexible piezoelectric film group of an energy harvester utilizes the strong tension of the tire body and the change of the pressure in the tire when the tire moves to harvest energy, and the upper-layer flexible piezoelectric film group generates approximate flutter through the piezoelectric film when the tire rolls and a vehicle body vibrates so as to harvest energy. The whole system reasonably utilizes energy generated by tire movement and vehicle body gravity, does not need to configure batteries for sensors and signal generators, and is convenient to install, long in service life and low in cost.

    本发明涉及汽车制造领域,具体涉及一种汽车轮胎的无源监测系统,包括传感器模块、车轮检测模块和接收处理模块,所述传感器模块与车轮检测模块之间通过信号线连接,所述车轮检测模块与接收处理模块之间通过WIFI信号无线连接,车轮检测模块粘接在汽车轮胎气密层表面上。本发明的车轮检测模块设置有俘能器,俘能器的下层柔性压电膜组利用胎体的强张力和车胎运动时胎内压力的变化进行俘能,上层柔性压电膜组通过车胎滚动和车体振动时的压电膜产生近似颤振从而俘能。整套系统合理地利用车胎运动以及车体重力产生的能量,不需要为传感器和信号发生器配置电池,安装方便,使用寿命长,成本低。


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    Title :

    Passive monitoring system for automobile tire


    Additional title:

    一种汽车轮胎的无源监测系统


    Contributors:
    TANG RONGJIANG (author) / GU YUBIN (author) / QIN YUNBAI (author) / XU ENYONG (author) / LUO HAIYING (author) / TANG JINGTIAN (author)

    Publication date :

    2021-04-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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