发明名称 |
APPARATUS AND METHOD FOR MONITORING TIRE PRESSURE |
摘要 |
A tire pressure monitoring apparatus includes a frequency detection unit configured to detect a resonant frequency according to a tire pressure; a calculation unit configured to accumulate the resonant frequency and calculate an average frequency and a frequency variance; a coordinate system setting unit configured to locate a first average variance point corresponding to the average frequency and the frequency variance, on an average-variance plane, and locate second average variance points corresponding to average frequencies and frequency variances of resonant frequencies measured for types of tires, on the average-variance plane; a tire determination unit configured to determine a type of a tire in consideration of distances between the first and second average variance points; and a low-pressure frequency setting unit configured to set a low-pressure frequency according to the determined type of the tire, as a reference low-pressure frequency for determining whether the tire pressure is a low pressure. |
申请公布号 |
US2016082790(A1) |
申请公布日期 |
2016.03.24 |
申请号 |
US201414560370 |
申请日期 |
2014.12.04 |
申请人 |
HYUNDAI AUTRON CO., LTD. |
发明人 |
Kim Tae-Hun;Shin Seung-Hwan |
分类号 |
B60C23/02 |
主分类号 |
B60C23/02 |
代理机构 |
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代理人 |
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主权项 |
1. A tire pressure monitoring apparatus comprising:
a frequency detection unit configured to detect a resonant frequency according to a tire pressure; a calculation unit configured to accumulate the resonant frequency and calculate an average frequency and a frequency variance; a coordinate system setting unit configured to locate a first average variance point corresponding to the average frequency and the frequency variance, on an average-variance plane, and locate second average variance points corresponding to average frequencies and frequency variances of resonant frequencies which are measured in advance for types of tires, on the average-variance plane; a tire determination unit configured to determine a type of a tire in consideration of distances between the first average variance point and the second average variance points on the average-variance plane; and a low-pressure frequency setting unit configured to set a low-pressure frequency according to the determined type of the tire, as a reference low-pressure frequency for determining whether the tire pressure is a low pressure. |
地址 |
Seongnam-si KR |