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    • 3. 发明申请
    • VEHICLE VIBRATION REDUCTION SYSTEM
    • 车辆振动减振系统
    • US20140032044A1
    • 2014-01-30
    • US14009676
    • 2012-03-13
    • Hirokazu WataiKazutomo Murakami
    • Hirokazu WataiKazutomo Murakami
    • G05B13/02F16F15/00G05D19/02
    • G05B13/02B60K5/12F16F15/002F16F15/005G05B5/01G05B13/021G05D19/02
    • A rotational signal of a generation source of a control object is detected and, when a rotational speed (frequency) varies, convergence values of filter coefficients of adaptive filters 33, 34 based on a previous control result corresponding to the frequency stored in a control device 11 are retrieved and set to the adaptive filters 33, 34 as initial values. The adaptive filters 33, 34 are updated by using the initial values of filter coefficients and output a control signal y(t) to an ACM (actuator) 3a. LMS arithmetic units 37, 39 read a reference signal calculated from the rotational signal and an acceleration signal (error signal) e(t) detected by a sensor 9 and carry out processing for updating the filter coefficients of the adaptive filters 33, 34. The adaptive filters 33, 34, based on updated filter coefficients, output the control signal y(t) to the ACM 3a.
    • 检测控制对象的发生源的旋转信号,并且当转速(频率)变化时,基于与存储在控制装置中的频率相对应的先前控制结果,自适应滤波器33,34的滤波器系数的收敛值 11被检索并被设置为自适应滤波器33,34作为初始值。 通过使用滤波器系数的初始值来更新自适应滤波器33,34,并将控制信号y(t)输出到ACM(致动器)3a。 LMS算术单元37,39读取由旋转信号计算的参考信号和由传感器9检测的加速度信号(误差信号)e(t),并执行用于更新自适应滤波器33,34的滤波器系数的处理。 基于更新的滤波器系数的自适应滤波器33,34将控制信号y(t)输出到ACM 3a。
    • 9. 发明申请
    • Device and method for detecting abnormality of rotating body
    • 检测旋转体异常的装置及方法
    • US20070176763A1
    • 2007-08-02
    • US10596407
    • 2004-11-30
    • Kazutomo MurakamiHiroyuki Ueda
    • Kazutomo MurakamiHiroyuki Ueda
    • B60C23/00
    • G01M17/025B60C23/061
    • A device for detecting an abnormality of a rotating body is constituted of: means for measuring various physical quantities of the rotating body in rotation; means for extracting a signal which is synchronized with the rotation of the rotating body from the data measured by the measuring means; means for determining a condition of the rotating body from the signal extracted by the extracting means; and abnormality warning means for giving warning of abnormality when a condition of the rotating body is determined to be abnormal by the determining means. With the device and method of detecting an abnormality of a rotating body, abnormalities of a rotating body, particularly a burst and a separation of the tread of a tire, are detected at an early stage, so that accident can be prevented.
    • 用于检测旋转体的异常的装置由以下部分构成:用于测量旋转体的旋转体的各种物理量的装置; 用于从由所述测量装置测量的数据提取与所述旋转体的旋转同步的信号的装置; 用于根据由提取装置提取的信号确定旋转体的状态的装置; 以及异常警告装置,用于当所述确定装置确定所述旋转体的状况被异常时,发出异常警告。 通过检测旋转体的异常的装置和方法,可以在早期检测到旋转体的异常,特别是轮胎的胎面的分裂和胎面的分离,从而可以防止事故。