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公开(公告)号:WO2003089893A1
公开(公告)日:2003-10-30
申请号:PCT/US2003/012199
申请日:2003-04-21
Applicant: ILLINOIS TOOL WORKS, INC.
Inventor: BEEBE, James , CARGOULD, Barry , MATUSZNY, Richard
IPC: G01M17/02
CPC classification number: G01M17/022 , G01M17/02
Abstract: A method and apparatus for testing tires. In step (110), the radial force variation is measured in the current direction of rotation. The first harmonic of this force variation is calculated in step (120) and a tire position corresponding to either zero crossing of the first harmonic is determined in step (130). In step (140), the tire position is monitored until a zero crossing is reached. The rotation direction is reversed at the appropriate location in step (150) and the test is continued.
Abstract translation: 一种用于轮胎测试的方法和装置。 在步骤(110)中,在当前的旋转方向上测量径向力的变化。 在步骤(120)中计算出该力变化的一次谐波,并且在步骤(130)中确定对应于第一谐波的过零点的轮胎位置。 在步骤(140)中,监视轮胎位置,直到达到过零点。 旋转方向在步骤(150)中的适当位置反转,并继续测试。