| 摘要 |
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.
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