发明名称 |
Method and apparatus for detecting decrease in tire air-pressure, and program for judging decompression of tire |
摘要 |
A method for detecting decrease in tire air-pressure in which decrease in internal pressure of a tire is detected on the basis of rotational information obtained from tires attached to a vehicle. The method includes the steps of: detecting rotational information of the respective tires; storing the rotational information of the respective tires; obtaining a slip rate between the tires and a road surface during running; comparing the slip rate with a slip rate which has been preliminarily obtained when at normal internal pressure; and judging simultaneous decompression of two wheel tires of both front wheels or simultaneous decompression of two wheel tires of both rear wheels on the basis of a relationship between a value obtained through comparison of the two slip rates and a specified threshold. It is possible to judge simultaneous decompression of two wheel tires of both front wheels or wheel two tires of both rear wheels. <IMAGE>
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申请公布号 |
EP1361081(A2) |
申请公布日期 |
2003.11.12 |
申请号 |
EP20030009328 |
申请日期 |
2003.04.24 |
申请人 |
SUMITOMO RUBBER INDUSTRIES LIMITED |
发明人 |
OSHIRO, YUJI;KITANO, MASASHI |
分类号 |
G01L17/00;B60C23/06;(IPC1-7):B60C23/06 |
主分类号 |
G01L17/00 |
代理机构 |
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地址 |
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