| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire pneumatic pressure monitoring device that can accurately monitor pneumatic pressure of a tire.SOLUTION: A tire sensor unit 13 is installed in each of a plurality of wheels. The tire sensor unit 13 detects a distance D between a wheel portion 5 and a tread portion 7 of a tire 6, and detects acceleration of the wheel. When the wheel has a specific angle on the basis of the acceleration of the vehicle, normal time processing for monitoring the pneumatic pressure of the tire 6 on the basis of the distance D is executed. In contrast, when a specific condition where the acceleration of the wheel exceeds an upper limit or lower limit threshold value is satisfied, the normal time processing is not executed. |
