The invention relates to a wind resistance coefficient and rolling resistance coefficient online correction method, device, equipment and medium, and belongs to the field of whole automobile control computation.The method comprises the steps that historical driving data and current driving data of an automobile are obtained, offline calculation can be conducted on the historical driving data, and an initial wind resistance coefficient and an initial rolling resistance coefficient are obtained; when the current driving data meets the first preset condition, the initial wind resistance coefficient and the initial rolling resistance coefficient can be corrected online based on the RLS algorithm and the current driving data, and when the driving data at the next moment meets the first preset condition, the target wind resistance coefficient and the target wind resistance coefficient are corrected online based on the RLS algorithm. Therefore, on-line correction of the wind resistance coefficient and the rolling resistance coefficient in the whole life cycle of the vehicle is achieved, and the control precision and the performance stability of a vehicle dynamics control strategy are improved.
本发明涉及一种风阻系数和滚阻系数在线修正方法、装置、设备和介质,属于汽车整车控制计算领域,其中,该方法包括获取车辆的历史行驶数据和当前行驶数据,可以对历史行驶数据进行离线计算,得到初始风阻系数和初始滚阻系数,当当前行驶数据满足第一预设条件时,可以基于RLS算法和当前行驶数据对初始风阻系数和初始滚阻系数进行在线修正,并在下一时刻的行驶数据满足第一预设条件时,基于RLS算法对目标风阻系数和目标风阻系数进行在线修正。从而实现对车辆整个生命周期内风阻系数和滚阻系数的在线修正,提高了车辆动力学控制策略的的控制精度和性能稳定性。
Wind resistance coefficient and rolling resistance coefficient online correction method, device, equipment and medium
风阻系数和滚阻系数在线修正方法、装置、设备和介质
12.11.2024
Patent
Elektronische Ressource
Chinesisch
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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