System, method, and program for detecting deflated tires
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United States of America Patent
Stats
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Jul 12, 2016
Grant Date -
Dec 6, 2012
app pub date -
Jun 1, 2012
filing date -
Jun 3, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system for detecting deflated tires by making a relative comparison among rotation speeds of tires attached to a vehicle. The system includes a rotation speed information detection means for detecting rotation speed information of the tires; a rotation speed calculation means for calculating rotation speeds of the tires; and a determination means for determining deflated tires by comparing a decreased pressure determination value using the calculated rotation speeds with a predetermined threshold value. The determination means determines that the vehicle is going straight when it is found, with regard to factors composed of a lateral G, a yaw rate, and a steering angle of the vehicle, at least two of the factors including the yaw rate show that a difference between the maximum value and the minimum value at a predetermined time is lower than a predetermined value, thereby detecting deflated tires.
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