The invention discloses a method and system for controlling the braking distance of an automatic driving vehicle on an expressway, and the method comprises the steps: S1, building a braking model according to the related data of an expressway road traffic scene; s2, according to the braking model, the parking sight distance of the automatic driving vehicle is calculated; and S3, according to the parking sight distance of the automatic driving vehicle, brake spacing control is carried out. According to the method, on the basis of the Krause car-following model and the ACC car-following model, expressway automatic driving vehicle braking distance control is constructed, and the automatic driving vehicle parking sight distance requirement can be determined more accurately and quantitatively. According to the invention, the traffic efficiency is greatly improved under the condition that the parking sight distance can ensure the traffic safety. According to the method, technical guidance can be provided for research on the influence of the current automatic driving technology on key design indexes of the expressway, meanwhile, technical support is provided for application to novel expressway route alignment index design after the automatic driving technology is comprehensively popularized in the future, and the method has wide popularization and application prospects.
本发明公开了一种高速公路自动驾驶车辆制动间距控制方法及系统,该方法包括:S1.根据高速公路道路交通场景相关数据,构建制动模型;S2.根据制动模型,计算自动驾驶车辆的停车视距;S3.根据自动驾驶车辆的停车视距,进行制动间距控制。本发明基于Krause和ACC两种跟驰模型,构建高速公路自动驾驶车辆制动间距控制,能够更加准确、定量地确定自动驾驶车辆停车视距要求。本发明在停车视距能够保证交通安全的情况下,较大地提高了交通效率。本发明可以为目前自动驾驶技术对高速公路关键设计指标影响研究提供技术指引,同时为未来自动驾驶技术全面推广后,应用于新型高速公路路线线形指标设计提供技术支撑,具有广阔的推广应用前景。
Method and system for controlling braking distance of automatic driving vehicle on expressway
一种高速公路自动驾驶车辆制动间距控制方法及系统
2023-08-29
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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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