TIRE PRESSURE MONITORING DEVICE, VEHICLE INCLUDING THE TIRE PRESSURE MONITORING DEVICE, AND TIRE PRESSURE MONITORING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of improving the accuracy of specifying the attaching position of each wheel even when a difference in rotational speed between a front wheel and a rear wheel is limited.SOLUTION: In a vehicle that can be four-wheel driven, processing for obtaining the rotational position of a wheel detected for each reception of at least identification information of the identification information unique to a wheel and the air pressure of the wheel to store it as the rotational position data of each wheel is performed for each identification information, and when it is determined that for all pieces of identification information, a first temporary attaching position as the attaching position of a wheel in which rotational position data smallest in variation among the stored rotational position data and a second temporary attaching position as the attaching position of a wheel in which rotational position data second smallest in variation are identical in a car width direction and different in a vehicle longitudinal direction, and there is no overlapping between the first temporary attaching positions for each identification information, each first temporary attaching position is determined to be attaching position of a wheel to which each identification information corresponds.SELECTED DRAWING: Figure 17