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    • 34. 发明授权
    • Speed dependent suspension control
    • 速度依赖悬挂控制
    • US5570287A
    • 1996-10-29
    • US356992
    • 1994-12-16
    • Douglas C. CampbellGary J. GloceriDaniel M. McCoy
    • Douglas C. CampbellGary J. GloceriDaniel M. McCoy
    • B60G17/016B60G21/10B60G17/015
    • B60G17/016B60G21/106B60G2202/152B60G2400/104B60G2400/204B60G2400/33B60G2400/412
    • Vehicle speed is measured and used to calculate lateral acceleration of the vehicle and speed dependent thresholds to which the lateral acceleration of the vehicle is compared to determine when to change a controllable suspension system of the vehicle to improve operation of the suspension system. The controllable suspension system includes air springs and variable damping shock absorbers switchable between soft and firm damping rates. At speeds above a given speed, lateral accelerations exceeding first speed dependent thresholds will result in switching the shock absorbers to firm and/or closing gate valves which intercouple the left and right air springs to decrease vehicle roll. For slower speeds less than the given speed, the suspension system control is desensitized such that lateral accelerations of the same given magnitudes, for example due to entering a parking space or other low speed maneuver, do not alter the suspension. Switch back of shock absorbers from firm to soft and opening of the gate valves can be based on expiration of an elapsed time period or detection of the lateral acceleration of the vehicle falling below second speed determined thresholds.
    • 测量车辆速度并用于计算车辆的横向加速度和与车辆的横向加速度进行比较的速度相关阈值,以确定何时改变车辆的可控悬架系统以改善悬架系统的操作。 可控悬挂系统包括空气弹簧和可变阻尼减震器,可在软和固定阻尼速率之间切换。 在高于给定速度的速度下,超过第一速度相关阈值的横向加速度将导致将减震器切换到固定和/或关闭左右空气弹簧相互耦合的闸阀,以减少车辆滚动。 对于慢于给定速度的较慢速度,悬架系统控制被减弱,使得相同给定量值的横向加速度,例如由于进入停车位或其它低速机动而不改变悬架。 将减震器从牢固地切换到柔性,并且闸阀的打开可以基于经过的时间段的到期或车辆的横向加速度的检测低于第二速度确定的阈值。