The invention relates to a distributed electric drive vehicle integrated stability prediction control method and device. The method comprises the following steps: constructing an initial tire model of a vehicle according to tire attribute data and a magic algorithm, and performing segmented affine processing on the initial tire model according to a segmentation algorithm and a segmented affine algorithm to obtain a linear tire model; based on the stress model of the vehicle, the road adhesion coefficient and the linear tire model, constructing a target stress model of the vehicle, and determining a tire slip angle model according to the target stress model; aiming at each piece of speed data in the speed data set, determining a phase plane graph corresponding to each piece of front wheel turning angle data of the vehicle under the speed data according to a tire slip angle model, the front wheel turning angle data set, the vehicle attribute data set and a fixed point algorithm; and determining a stable range corresponding to the speed data according to each phase plane graph under each piece of speed data. By adopting the method, the accuracy of the stable range can be improved.
本申请涉及一种分布式电驱动车辆集成稳定性预测控制方法和装置。所述方法包括:根据轮胎属性数据和魔术算法构建车辆的初始轮胎模型,并根据分割算法和分段仿射算法对初始轮胎模型进行分段仿射处理,得到线性轮胎模型;基于车辆的受力模型、道路附着系数和线性轮胎模型,构建车辆的目标受力模型,并根据目标受力模型确定轮胎侧偏角模型;针对速度数据集中的每一速度数据,根据轮胎侧偏角模型、前轮转角数据集、车辆属性数据集和不动点算法确定车辆在速度数据下的各前轮转角数据对应的相平面图;根据每一速度数据下的各相平面图,确定速度数据对应的稳定范围。采用本方法能够提高稳定范围的准确性。
Distributed electric drive vehicle integrated stability prediction control method and device
分布式电驱动车辆集成稳定性预测控制方法和装置
2024-11-08
Patent
Electronic Resource
Chinese
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