Tire inflation pressure monitoring device and vehicle having the same
First Claim
1. A tire inflation pressure monitoring device, comprising:
- a tire inflation pressure detecting section provided on a tire side, said tire inflation pressure detecting section detecting a tire inflation pressure, said tire inflation pressure detecting section including;
an inflation pressure sensor, said inflation pressure sensor detecting the tire inflation pressure; and
a transmitting unit, said transmitting unit transmitting by radio a result of detection of the tire inflation pressure from said inflation pressure sensor; and
a tire inflation pressure diagnosing section provided on a vehicle body side, said tire inflation pressure diagnosing section receiving the result of detection of the tire inflation pressure from said inflation pressure sensor, calibrating the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure, and diagnosing the calibrated inflation pressure, said tire inflation pressure diagnosing section including;
a receiving unit, said receiving unit receiving the result of detection of the tire inflation pressure from said transmitting unit;
an inputting unit, said inputting unit inputting position information on a present position;
an atmospheric pressure detector, said atmospheric pressure detector detecting an atmospheric pressure at the present position according to the position information input by said inputting unit; and
a calibrating unit, said calibrating unit calibrating the result of detection of the tire inflation pressure to the inflation pressure at the reference atmospheric pressure according to the atmospheric pressure detected by said atmospheric pressure detector.
1 Assignment
0 Petitions
Accused Products
Abstract
A tire inflation pressure monitoring device and a vehicle having the same have a battery-driven unit provided on the tire side that can be reduced in size and power consumption. In a diagnosing unit, an ID comparing section outputs the result of detection of a tire inflation pressure to an inflation pressure calibrating section if a wheel ID included in a received signal coincides with a wheel ID recorded in a set value storing section. An atmospheric pressure detecting section calculates an atmospheric pressure at a present position according to an altitude at the present position. An inflation pressure calibrating section calibrates the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure. An inflation pressure diagnosing section compares the calibrated inflation pressure with a reference inflation pressure and inputs a predetermined error code into a storing section if the calibrated inflation pressure is lower than the reference inflation pressure. A diagnosing section reads the result of diagnosis corresponding to the error code recorded in the storing section, from the set value storing section and then outputs the result of diagnosis.
7 Citations
16 Claims
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1. A tire inflation pressure monitoring device, comprising:
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a tire inflation pressure detecting section provided on a tire side, said tire inflation pressure detecting section detecting a tire inflation pressure, said tire inflation pressure detecting section including; an inflation pressure sensor, said inflation pressure sensor detecting the tire inflation pressure; and a transmitting unit, said transmitting unit transmitting by radio a result of detection of the tire inflation pressure from said inflation pressure sensor; and a tire inflation pressure diagnosing section provided on a vehicle body side, said tire inflation pressure diagnosing section receiving the result of detection of the tire inflation pressure from said inflation pressure sensor, calibrating the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure, and diagnosing the calibrated inflation pressure, said tire inflation pressure diagnosing section including; a receiving unit, said receiving unit receiving the result of detection of the tire inflation pressure from said transmitting unit; an inputting unit, said inputting unit inputting position information on a present position; an atmospheric pressure detector, said atmospheric pressure detector detecting an atmospheric pressure at the present position according to the position information input by said inputting unit; and a calibrating unit, said calibrating unit calibrating the result of detection of the tire inflation pressure to the inflation pressure at the reference atmospheric pressure according to the atmospheric pressure detected by said atmospheric pressure detector. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle having a tire inflation pressure monitoring device, comprising:
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a navigation unit for determining a present position; a tire inflation pressure detecting section provided on a tire side, said tire inflation pressure detecting section detecting a tire inflation pressure, said tire inflation pressure detecting section including; an inflation pressure sensor, said inflation pressure sensor detecting the tire inflation pressure; and a transmitting unit, said transmitting unit transmitting by radio a result of detection of the tire inflation pressure from said inflation pressure sensor; and a tire inflation pressure diagnosing section provided on a vehicle body side, said tire inflation pressure diagnosing section receiving the result of detection of the tire inflation pressure from said inflation pressure sensor, calibrating the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure, and diagnosing the calibrated inflation pressure, said tire inflation pressure diagnosing section including; a receiving unit, said receiving unit receiving the result of detection of the tire inflation pressure from said transmitting unit; an obtaining unit, said obtaining unit obtaining position information on a present position from said navigation unit; an atmospheric pressure detector, said atmospheric pressure detector detecting an atmospheric pressure at the present position according to the position information obtained by said obtaining unit; and a calibrating unit, said calibrating unit calibrating the result of detection of the tire inflation pressure to the inflation pressure at the reference atmospheric pressure according to the atmospheric pressure detected by said atmospheric pressure detector. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A vehicle having a tire inflation pressure monitoring device, comprising:
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a tire inflation pressure detecting section provided on a tire side, said tire inflation pressure detecting section detecting a tire inflation pressure, said tire inflation pressure detecting section including; an inflation pressure sensor, said inflation pressure sensor detecting the tire inflation pressure; and a transmitting unit, said transmitting unit transmitting by radio a result of detection of the tire inflation pressure from said inflation pressure sensor; and a tire inflation pressure diagnosing section provided on a vehicle body side, said tire inflation pressure diagnosing section receiving the result of detection of the tire inflation pressure from said inflation pressure sensor, calibrating the result of detection of the tire inflation pressure to an inflation pressure at a reference atmospheric pressure, and diagnosing the calibrated inflation pressure, said tire inflation pressure diagnosing section including; a receiving unit, said receiving unit receiving the result of detection of the tire inflation pressure from said transmitting unit; and a calibrating unit, said calibrating unit calibrating the result of detection of the tire inflation pressure to the inflation pressure at the reference atmospheric pressure according to atmospheric pressure input thereto. - View Dependent Claims (13, 14, 15, 16)
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Specification