Process for monitoring the condition of motor vehicle wheels
    21.
    发明授权
    Process for monitoring the condition of motor vehicle wheels 失效
    监控汽车车轮状况的过程

    公开(公告)号:US06959234B2

    公开(公告)日:2005-10-25

    申请号:US10254545

    申请日:2002-09-26

    摘要: A process and device for monitoring the state of a wheel of a motor vehicle in which an output signal of a sensor is converted into an essentially rectangular pulse signal. A respective duration of the pulse is measured; and an especially weighted average between the duration of a current value and a preceding value is determined, wherein a current value and a preceding value exhibit a time interval and/or lie a specific step size apart. A correction factor is determined from each deviation between the duration of a current value and a respective mean value. A step size of the correction method is matched to an error order of a fault. Preferably the step size with a periodic deviation of the mth order that is to be eliminated is determined according to the formula j=1/m×n/4; for motor vehicles in particular according to the formula j=1/m×12.

    摘要翻译: 一种用于监测机动车辆的车轮的状态的过程和装置,其中传感器的输出信号被转换成基本上矩形的脉冲信号。 测量脉冲的相应持续时间; 并且确定当前值和先前值的持续时间之间的特别加权平均值,其中当前值和前一值表现出间隔时间间隔和/或表示特定步长。 根据当前值的持续时间和相应的平均值之间的每个偏差确定校正因子。 校正方法的步长与故障的错误顺序相匹配。 优选地,根据公式j = 1 / m×n / 4来确定具有要消除的第m个/ ...的周期偏差的步长, 对于机动车辆,特别是根据公式j = 1 / m×12。