The invention discloses an electro-hydraulic energy feedback suspension control method and device based on road surface recognition and a vehicle, and relates to the technical field of automobiles, and the technical scheme is characterized in that the method comprises the steps that three-dimensional point cloud information of a front road surface in the vehicle driving process is obtained; extracting pavement elevation information of the three-dimensional point cloud information, and fitting the pavement elevation information to obtain pavement feedforward information of a front pavement in the vehicle driving process; based on an RBF neural network algorithm and a recursive least square method, identifying the operation parameters of the electro-hydraulic energy feedback suspension to obtain a parameter identification result; according to the method, the pavement elevation information capable of reflecting the pavement unevenness condition is identified in real time, under the condition that the pavement condition is known, semi-active decision making is conducted on the electro-hydraulic energy feedback suspension in advance, the damping coefficient of the electro-hydraulic energy feedback suspension is adjusted, performance consideration under the multi-target constraint is achieved, the adaptive capacity of the electro-hydraulic energy feedback suspension under the complex pavement condition is improved, and the application range of the electro-hydraulic energy feedback suspension is widened. And integration and application of the system on a whole vehicle are promoted.
本发明公开了一种基于路面识别的电液馈能悬架控制方法、装置及车辆,涉及汽车技术领域,其技术方案要点是:方法包括:获取车辆行驶过程中前方路面的三维点云信息;提取三维点云信息的路面高程信息,并对路面高程信息进行拟合,得到车辆行驶过程中前方路面的路面前馈信息;基于RBF神经网络算法和递推最小二乘法对电液馈能悬架的运行参数进行辨识,得到参数辨识结果;在本发明中,通过对可反应路面不平条件的路面高程信息进行实时辨识,在路面条件已知的情况下,预先对电液馈能悬架进行半主动决策,调整其阻尼系数,实现多目标约束下的性能兼顾,提高电液馈能悬架在复杂路面条件下的适应能力,推动其在整车上的集成及应用。
Electrohydraulic energy feedback suspension control method and device based on road surface recognition and vehicle
一种基于路面识别的电液馈能悬架控制方法、装置及车辆
2023-08-18
Patent
Elektronische Ressource
Chinesisch
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
Robust control of vehicle suspension with electrohydraulic actuator
Kraftfahrwesen | 2014
|