The invention relates to vehicle oscillation control by switchable air volume suspension. An air suspension system includes the ability to adjust the working air volume, pressure, and spring rate of one or more air springs to reduce or eliminate various types of vehicle oscillations. Switchable or variable volume air spring assemblies have the ability to change air spring volumes, which results inchanges in air spring rates, and therefore changes in normal loads applied to each wheel. Changes in wheel normal loads change wheel traction (slip) and vehicle dynamics (pitch, roll, yaw displacement, rate and acceleration). The spring rate of one or more of the air spring assemblies is adjusted automatically when a vehicle oscillation is detected. This vehicle oscillation is calculated from theraw vehicle signals, or another vehicle module may detect the oscillation and send a command to the air suspension module to change the spring rates. This changes the natural frequency of the vehicle, dampening the oscillation.
本发明涉及通过可切换空气容积悬架控制车辆振荡。一种空气悬架系统,其包括调节一个或多个空气弹簧的工作空气容积、压力和弹簧刚度,以减少或消除各种类型的车辆振荡的能力。可切换或可变容积空气弹簧组件具有改变空气弹簧容积的能力,这导致空气弹簧刚度的变化,从而导致施加到每个车轮的正常载荷的变化。车轮正常载荷的变化会改变车轮牵引力(打滑)和车辆动态(俯仰、滚转、偏航位移、速率和加速度)。当检测到车辆振荡时,空气弹簧组件中的一个或多个的弹簧刚度被自动调节。该车辆振荡是从原始车辆信号计算的,或者另一个车辆模块可以检测振荡并向空气悬架模块发送改变弹簧刚度的命令。这改变了车辆的固有频率,抑制了振荡。
VEHICLE OSCILLATION CONTROL BY SWITCHABLE AIR VOLUME SUSPENSION
通过可切换空气容积悬架控制车辆振荡
2020-06-02
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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