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    • 6. 发明授权
    • Suspension control system
    • 悬架控制系统
    • US06434460B1
    • 2002-08-13
    • US09911617
    • 2001-07-25
    • Toru UchinoNobuyuki IchimaruMasaaki UchiyamaTakahide Kobayashi
    • Toru UchinoNobuyuki IchimaruMasaaki UchiyamaTakahide Kobayashi
    • B60G17015
    • B60G17/01933B60G2202/40B60G2400/10B60G2400/40B60G2400/61B60G2500/10Y10S180/902
    • By passing the vertical acceleration through a phase adjusting filter and a gain adjusting filter, the phase of the vertical acceleration is advanced by 49 degrees so that the phase difference with respect to the actual relative velocity becomes 180 degrees in the neighborhood of the vehicle body resonance point, thereby making the phase of the vertical acceleration, in effect, coincident with the phase of the relative velocity. In the neighborhood of the vehicle body resonance point (1 Hz), the gain of the estimated relative velocity takes a small value. In frequency regions other than the neighborhood of the vehicle body resonance point, the gain of the estimated relative velocity is increased. Consequently, the controlled variable in the neighborhood of the vehicle body resonance point increases, and the controlled variable in higher frequency regions decreases. Damping force is adjusted in correspondence to the controlled variable. Thus, it is possible to improve ride quality in the neighborhood of the vehicle body resonance point (1 Hz).
    • 通过使垂直加速度通过相位调整滤波器和增益调整滤波器,垂直加速度的相位提前49度,使得相对于实际相对速度的相位差在车身谐振附近变为180度 点,从而使垂直加速度的相位实际上与相对速度的相位一致。 在车体共振点(1Hz)附近,估计的相对速度的增益取小值。 在车体共振点附近的频率区域中,估计的相对速度的增益增加。 因此,车体共振点附近的受控变量增大,高频区域的受控变量减小。 阻尼力相应于受控变量进行调整。 因此,能够提高车体共振点附近的乘坐质量(1Hz)。