The invention discloses a road adhesion coefficient determination method, device and equipment, a vehicle, a storage medium and a product, and belongs to the technical field of automobiles. The method comprises the following steps: acquiring a wheel reference speed, a first wheel estimated rotating speed corresponding to a current time period, wheel information, wheel speed sensing data and an attachment correction coefficient; determining wheel dynamic characteristic information based on the wheel reference speed, the first wheel estimated rotating speed and the wheel information; predicting a second wheel estimated rotating speed corresponding to the next time period according to the wheel dynamic characteristic information and the wheel information; and correcting the road adhesion coefficient according to the second wheel estimated rotating speed, the wheel speed sensing data and the adhesion correction coefficient to obtain a corrected first road adhesion coefficient. According to the technical scheme provided by the embodiment of the invention, a calculation closed loop of the road adhesion coefficient value is formed, the road adhesion coefficient value with required precision is iteratively converged, excessive dependence on the precision of the input signal is avoided, and the real-time performance of determining the road adhesion coefficient is relatively good.
本申请公开了一种路面附着系数的确定方法、装置、设备、车辆、存储介质及产品,属于汽车技术领域。所述方法包括:获取车轮参考速度、当前时间周期对应的第一车轮估计转速、车轮信息、轮速传感数据和附着矫正系数;基于车轮参考速度、第一车轮估计转速和车轮信息,确定车轮动力特征信息;据车轮动力特征信息和车轮信息,预测下一时间周期对应的第二车轮估计转速;根据第二车轮估计转速、轮速传感数据和附着矫正系数,对路面附着系数进行矫正,得到矫正后的第一路面附着系数。本申请实施例提供的技术方案形成路面附着系数值的计算闭环并迭代收敛至需求精度的路面附着系数值,不会过度依赖输入信号的精度,并且确定路面附着系数的实时性较好。
Method, device and equipment for determining road adhesion coefficient, vehicle, storage medium and product
一种路面附着系数的确定方法、装置、设备、车辆、存储介质及产品
2024-08-16
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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