The invention provides a semi-active suspension vehicle body acceleration control method which comprises the following steps: S1, acquiring a signal and processing the signal; s2, inputting the processed signal into an expert database of a control system, and determining parameters kc and cnom required for improving an acceleration control algorithm based on the obtained vehicle body motion information and suspension motion information of the vehicle and the pre-established expert database; s3, inputting the parameters kc and cnom and the obtained motion information of the vehicle body and the suspension into a damping calculation module in a control system, and calculating damping by using an improved acceleration control algorithm formula; the improved acceleration control calculation formula is # imgabs0 # imgabs1 #, when kc is 0, the output damping value is cnom, and at the moment, the actual control strategy is a passive suspension; and when kc > + infinity, the control strategy is biased to switch type damping control of acceleration control. Switching type damping control is optimized into continuous damping control, the performance of the shock absorber is fully used, jerk increase caused by damping switching is reduced, and comfort is improved.
本发明提供了一种半主动悬架车身加速度控制方法,其包括以下步骤:S1、采集信号,并进行信号处理;S2、将处理后的信号输入控制系统的专家数据库,基于获取的车辆车身运动信息、悬架运动信息和预先建立的专家数据库,确定改进加速度控制算法所需的参数kc,cnom;S3、将参数kc,cnom和获得的车身、悬架运动信息输入控制系统中的阻尼计算模块,使用改进加速度控制算法公式计算阻尼;所述改进加速度控制计算公式为:#imgabs0##imgabs1#当kc为0时,输出的阻尼值即为cnom,此时实际控制策略为被动悬架;当kc→+∞时,控制策略偏向加速度控制的开关型阻尼控制。本发明将开关型的阻尼控制优化为连续型阻尼控制,充分使用了减振器性能,降低了阻尼切换带来的急动度增加,提升了舒适性。
Semi-active suspension vehicle body acceleration control method
半主动悬架车身加速度控制方法
2025-04-11
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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