Tire pneumatic pressure detector
First Claim
1. A tire pneumatic pressure detector comprising:
- tire pneumatic pressure detection means (S220) for detecting a tire pneumatic pressure;
pneumatic pressure drop detection means (S230) for comparing the tire pneumatic pressure detected by said tire pneumatic pressure detection means with a predetermined value, and detecting the drop of the tire pneumatic pressure when the tire pneumatic pressure is lower than the predetermined value; and
first memory means (S250) for storing data about a timing at which the drop of the tire pneumatic pressure occurs.
1 Assignment
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Accused Products
Abstract
Data about a running distance from a time at which the drop of a tire pneumatic pressure occurs is stored, and a warning method of an alarm is changed in accordance with this data. For example, when the running distance is smaller than a predetermined value, a flashing frequency of an alarm lamp provided to the alarm is set to a lower frequency, and when the running distance becomes greater than the predetermined value, the flashing frequency of the alarm lamp is set to a higher frequency. When a fault-diagnosing device is connected to a tire pneumatic pressure detector, the data about the running distance from the timing of the occurrence of the drop of the tire pneumatic pressure can be read out. In consequence, the tire pneumatic pressure detector can judge the degrees of blowout and the drop of the pneumatic pressure. Further, market data about the blowout of the tire and the running after the drop of the pneumatic pressure can be collected.
3 Citations
6 Claims
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1. A tire pneumatic pressure detector comprising:
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tire pneumatic pressure detection means (S220) for detecting a tire pneumatic pressure;
pneumatic pressure drop detection means (S230) for comparing the tire pneumatic pressure detected by said tire pneumatic pressure detection means with a predetermined value, and detecting the drop of the tire pneumatic pressure when the tire pneumatic pressure is lower than the predetermined value; and
first memory means (S250) for storing data about a timing at which the drop of the tire pneumatic pressure occurs. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification