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    • 5. 发明申请
    • METHOD FOR DETERMINING A WHEEL TIRE GROUND PRINT
    • 确定轮胎地面打印的方法
    • US20160303928A1
    • 2016-10-20
    • US15101086
    • 2014-11-24
    • CONTINENTAL AUTOMOTIVE FRANCECONTINENTAL AUTOMOTIVE GMBH
    • Rachid BENBOUHOUTJean-Christophe BOUTHINON
    • B60C23/04G01B21/02
    • B60C23/0488B60C23/0408B60C23/0447B60C23/0474B60C23/064B60C2019/004G01B21/02
    • Method of determining the footprint of a tire on the ground, using devices already installed in standard production tires. Since the frequency of the transmitter clock present in a wheel unit is perturbed by mechanical vibrations when the tire contacts the ground, the frequency variations of the reference clock are representative of the value of the footprint. The method therefore includes determining the footprint on the ground of a tire of a wheel by measuring continuously, as a function of time, a signal representative of the variations in frequency of the reference clock supplied at the output of the time control device; determining a time interval during which the frequency variations of the reference clock occur; and, on the basis of the rotation speed of the tire, deducing therefrom an angular range of contact (Θ) corresponding to the footprint between the ends representing the ground contact length of the tire.
    • 使用已经安装在标准生产轮胎中的设备来确定轮胎在地面上的占地面积的方法。 由于当轮胎接触地面时,车轮单元中出现的发射机时钟的频率受到机械振动的干扰,所以参考时钟的频率变化代表了占用空间的值。 因此,该方法包括根据时间连续地测量表示在时间控制装置的输出处提供的参考时钟的频率变化的信号来确定车轮轮胎的基准面积; 确定参考时钟的频率变化发生的时间间隔; 并且基于轮胎的转速,从其中推导出与表示轮胎的接地接触长度的端部之间的占地面积相对应的接触角度(θ)。