The invention discloses an automobile critical instability speed and braking distance obtaining method based on vehicle-road cooperation. The method comprises the steps that S1, road data, meteorological data, human data and other environment data of vehicles and passing road sections are obtained; s2, according to the obtained data, carrying out automobile running balance analysis, automobile transverse overturning stability analysis, automobile transverse slippage stability analysis, actually measured parking sight distance, road highest running speed and instability speed analysis under low-visibility severe weather conditions; s3, the real-time reasonable safety speed V0, the critical instability speed Vc and the critical braking distance Dc of the automobile are obtained; s4, the actual driving speed V and the actual longitudinal distance D of the automobile are obtained, the actual driving speed V and the reasonable safety speed V0 are displayed through an alarm unit, and the relation between the actual driving speed V and the reasonable safety speed V0 of the automobile is judged; and S5, uploading to a rear management and control and scheduling platform. The method reduces the field judgment intensity of the driver, and is safer.
本申请公开了一种基于车路协同的汽车临界失稳速度及制动距离获取方法,包括:步骤S1:获取车辆及通行路段的道路数据、气象数据、人的数据、其他环境数据;步骤S2:根据所得数据对汽车行驶平衡分析、汽车横向倾覆稳定分析、汽车横向滑移稳定分析、实测停车视距、道路最高行车速度、低能见度恶劣气象条件下失稳速度分析;步骤S3:获取该辆汽车的实时合理安全速度V0、临界失稳速度Vc以及临界制动距离Dc;步骤S4:获取汽车实际行驶速度V、汽车实际纵向车距D,通过报警单元显示实际行驶速度V、合理安全速度V0,并判断汽车实际行驶速度V与合理安全速度V0的关系;步骤S5:上传后方管控和调度平台。该方法减轻驾驶人员现场判断强度,更加安全。
Automobile critical instability speed and braking distance acquisition method based on vehicle-road cooperation
基于车路协同的汽车临界失稳速度及制动距离获取方法
2023-09-22
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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