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    • 5. 发明申请
    • METHOD FOR DETECTING WHEEL ROTATION USING A ONE-DIMENSIONAL ACCELERATION SENSOR
    • 使用一维加速度传感器检测车轮回转的方法
    • US20130085710A1
    • 2013-04-04
    • US13249586
    • 2011-09-30
    • Thoralf Kautzsch
    • Thoralf Kautzsch
    • G06F15/00
    • B60C23/0416B60C23/0488
    • Embodiments relate to TPMS utilizing a single-axis acceleration sensor for measuring the direction of rotation of the tires in a tire localization methodology. In an embodiment, the known axis position of the acceleration sensor in the tires allows for the assessment by an integrated circuit in order to determine the left or right positioning of a tire, as well as the magnitude of acceleration or deceleration. Because of the dual components of the measured acceleration signal of first, the directional acceleration of the vehicle and second, the oscillating modulation due to gravity, the generated waveform is known to have differences between the left and right tire signals of an accelerating and decelerating vehicle. The impact of the oscillating modulation on the directional acceleration of the vehicle can be utilized to identify tire rotation direction, and thus the wheels localized therefrom, as well as the magnitude of acceleration and deceleration.
    • 实施例涉及利用单轴加速度传感器在轮胎定位方法中测量轮胎的旋转方向的TPMS。 在一个实施例中,轮胎中加速度传感器的已知轴位置允许通过集成电路进行评估,以便确定轮胎的左或右定位以及加速度或减速度的大小。 由于首先测量的加速度信号的双重分量,车辆的方向加速度和第二,由重力引起的振荡调制,已知生成的波形在加速和减速车辆的左右轮胎信号之间具有差异 。 振荡调制对车辆方向加速度的影响可以用于识别轮胎旋转方向,从而确定轮子的转向方向,并且因此轮子的位置以及加速度和减速度的大小。