| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire air pressure drop warning device capable of improving detecting precision of tire depressurizing. SOLUTION: This tire air pressure drop warning device warns of internal pressure drop of a tire by using a judged value obtained on the basis of rotation information obtained from tires attached to a four-wheel vehicle. It is provided with a rotation information detecting means 1 for detecting the rotation information of each tire, a memory means for storing the rotation information of each tire, an arithmetic processing means for calculating a judged value from the rotation information of each tire, and a judged value correcting means for correcting the judged value on the basis of lateral acceleration measured by a lateral acceleration sensor S provided on the vehicle.
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