The invention provides an indirect tire pressure monitoring system and method. The system comprises a signal preprocessing module, an angular velocity calculation module, a working condition compensation module, a tire self-adaptive model compensation module, a slip rate calculation module, a traction analysis module and a tire relative radius difference calculation module which are sequentially connected in the signal flow direction. According to the method, original wheel speed signals of wheel speed sensors and existing signals of a vehicle are subjected to data fusion analysis to obtain pressure information of tires, and the tire pressure monitoring function is achieved. The system can be realized through low-cost hardware, can also be integrated into a vehicle ABS/ESC system, is highin practicability, has multiple expansion functions, is good in application portability, does not need hardware maintenance in daily use, and effectively reduces the hardware cost of a vehicle. According to the invention, the defects of signal delay, easy interference and the like of a direct tire pressure monitoring system in a signal transmission process are effectively avoided, and the stability of a monitoring function is enhanced.

    本发明提供了一种间接式胎压监测系统和方法,系统包括按信号流向依次连接的信号预处理模块、角速度计算模块、工况补偿模块、轮胎自适应模型补偿模块、滑移率计算模块、牵引力分析模块和轮胎相对半径差计算模块;本发明的方法通过对轮速传感器的原始轮速信号和车辆已有信号进行数据融合分析得到轮胎的压力信息,实现轮胎压力监测的功能;本发明既可通过低成本硬件实现,也可以集成到车辆ABS/ESC系统中,实用性强,拓展功能多,应用移植性好,在日常使用中无需硬件维护,有效降低了车辆的硬件成本;本发明有效避免了直接式胎压监测系统在信号传输过程中信号延时、易受干扰等缺点,增强了监测功能的稳定性。


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    Title :

    An indirect tire pressure monitoring system and method


    Additional title:

    一种间接式胎压监测系统和方法


    Contributors:
    ZHONG YI (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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