TIRE HAVING A TAG FOR MONITORING A CONDITION OF THE TIRE
    2.
    发明授权
    TIRE HAVING A TAG FOR MONITORING A CONDITION OF THE TIRE 有权
    带有电子标签轮胎状态监视轮胎

    公开(公告)号:EP1222081B1

    公开(公告)日:2003-12-03

    申请号:EP99950101.8

    申请日:1999-10-01

    IPC分类号: B60C23/04

    CPC分类号: B60C23/0493

    摘要: According to the invention there is in conjunction with a pneumatic tire having a central tread, one or more radially-extending belt(s) disposed radially inwardly of the tread and an innerliner disposed radially inwardly of the belt. Apparatus for mounting an electronic tag (40) within the tire is characterized by a patch (70) having a first side (72) for mounting against the innerliner of the tire; a second arcuately-shaped side (73) and an internally threaded member (71); and an externally threaded member (64) having a portion extending from a side (74) of the tag and threadable into the internally threaded member of the patch.

    CALIBRATION OF A TRANSPONDER FOR A TIRE PRESSURE MONITORING SYSTEM
    10.
    发明公开
    CALIBRATION OF A TRANSPONDER FOR A TIRE PRESSURE MONITORING SYSTEM 审中-公开
    应答器校准的轮胎监测装置

    公开(公告)号:EP1240035A1

    公开(公告)日:2002-09-18

    申请号:EP99967303.1

    申请日:1999-12-14

    IPC分类号: B60C23/04

    摘要: A method (650) of calibrating a transponder (200, 604) capable of measuring temperature data (NT) and pressure data (NP) in an object (e.g., a tire, (104)) and transmitting a data stream (Figure 3C) to an external reader/interrogator (106, 400). The transponder includes memory (238) for storing measurements, calibration data (662), transponder ID number and the like. Since the transponder combines temperature and pressure information in the 'pressure' data, the ratio NT/NP is a direct indicator of pressure-only, and is also relatively insensitive to transponder power variations. The calibration method employs a calibration chamber (602) containing reference pressure (614) and temperature (612) sensors. The transducer to be calibrated is placed in the chamber and exposed (652) to a number of predetermined temperatures and pressures (as measured by the reference sensors) at a number of calibration points. At each calibration point, a temperature reading (NT) and a pressure reading (NP) sensed by the transponder are recorded along with the reference temperature and pressure. From these readings and reference measurements the calibration constants (NT25, mT, NT/NP700,25, mP) are calculated (658).