| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and method for monitoring tire pressure for accurately determining the wheel position of a transmitter. SOLUTION: The rotation position of each of wheels FL, FR, RL and RR is detected on a wheel side and a vehicle body side, the rotation position detected on the wheel side is transmitted together with a sensor ID to a receiver 3 using a radio signal, variation in each relative angle between the rotation position received from the transmitter 2a and the rotation position of each wheel detected on the vehicle body side when the former rotation position is received is monitored, the wheel position obtained by detecting the rotation position whose relative angle variation is the smallest after travel by a predetermined distance is determined as the wheel position of the transmitter 2a, the sensor ID received from the transmitter 2a whose wheel position is determined is registered as the sensor ID of the tire of the wheel position by storage update to memory 11. COPYRIGHT: (C)2010,JPO&INPIT
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