The invention discloses a vehicle semi-active suspension control method and device, a medium and a product, and relates to the field of vehicle semi-active suspension control, and the method comprises the steps: building an equivalent ceiling damping control force model of a target vehicle under random pavement excitation and a suspension preview control model under pavement local feature excitation; switching use of the suspension preview control model and the equivalent ceiling damping control force model is carried out by judging whether a wheel prediction track of the target vehicle passes through a road surface local feature region in the digital elevation map, if yes, the suspension preview control model is solved by utilizing a model prediction control algorithm based on a state variable of the target vehicle, and the equivalent ceiling damping control force model is obtained. The damping control force of the adjustable shock absorber is determined; and if not, based on the state variable of the target vehicle and the ceiling damping controller parameters, solving the equivalent ceiling damping control force model, and determining the damping control force of the adjustable shock absorber so as to control the semi-active suspension of the target vehicle. According to the invention, the control precision of the semi-active suspension of the vehicle is improved.
本申请公开了一种车辆半主动悬架控制方法、设备、介质及产品,涉及车辆半主动悬架控制领域,通过建立目标车辆在随机路面激励下的等效天棚阻尼控制力模型以及在路面局部特征激励下的悬架预瞄控制模型;通过判断目标车辆的车轮预测轨迹是否经过数字高程地图中的路面局部特征区域,进行悬架预瞄控制模型和等效天棚阻尼控制力模型的切换使用,若是,基于目标车辆的状态变量,利用模型预测控制算法对悬架预瞄控制模型进行求解,确定可调减振器的阻尼控制力;若否,基于目标车辆的状态变量和天棚阻尼控制器参数,求解等效天棚阻尼控制力模型,确定可调减振器的阻尼控制力,以对目标车辆的半主动悬架进行控制。本申请提高了对车辆半主动悬架的控制精度。
Vehicle semi-active suspension control method and device, medium and product
一种车辆半主动悬架控制方法、设备、介质及产品
2024-09-10
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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