VEHICLE-PURPOSE TIRE AIR PRESSURE DETECTION DEVICE

Japanese Patent JP2017194412

A

PROBLEM TO BE SOLVED: To provide a vehicle-purpose tire air pressure detection device that can notify a crew member of a fall in air pressure of a tire in a short time from the fall in air pressure of the tire or in advance, and can minimize power consumption.SOLUTION: A vehicle-purpose tire air pressure detection device comprises: air pressure detection means that is provided in a tire of an object wheel serving as at least one wheel, and repetitively detects an air pressure of the object tire; transmission means that is provided in the object wheel to repetitively implement wireless transmission of the air pressure serving as a detection result of the air pressure detection means; reception means that is provided in a vehicle body to receive the air pressure transmitted by the transmission means; estimation means that, when the reception means receives information about the air pressure of the same object tire from the transmission means at a plurality of times, is provided in the vehicle body to compute an estimation air pressure serving as an estimation value at current time on the basis of a plurality of up-to-date air pressures received by the reception means; and alarm generation means that is provided in the vehicle body to generate an alarm when the estimation air pressure is equal to or lower than a prescribed threshold.SELECTED DRAWING: Figure 3

TAKI YUJI

JP2016085981A

October 26, 2017

April 22, 2016

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TOYOTA MOTOR CORP

G01L17/00; B60C23/02; B60C23/20; G08C25/00

JP2005138684A	2005-06-02
JP2006327554A	2006-12-07
JP2005313761A	2005-11-10
JP2004322821A	2004-11-18
JP2004074892A	2004-03-11

US20060235651A1

2006-10-19

Patent business corporation Prospec patent office

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