The invention relates to an active braking safety distance judgment method and system and an active braking control method. The method comprises the following steps: acquiring information of different types of pavements in different environments, and marking the information to form a data set; training and testing the data set to generate a road surface recognition model; acquiring a current road surface image in real time, recognizing a current road surface type in real time through the road surface recognition model, and outputting a road surface recognition result; when active braking is triggered, the active braking system maps a road surface recognition result into a friction coefficient; calculating a safe braking distance according to the friction coefficient and the current speed of the vehicle. On the basis of the road surface recognition model established in advance, the current road surface image is obtained through the vehicle front-view camera, the current road surface type is recognized in real time according to the road surface recognition model, the road surface recognition result is mapped into the friction coefficient, and the safe braking distance is calculated according to the friction coefficient and the current vehicle speed of the vehicle. And the vehicle is braked in combination with the safe braking distance.
本发明涉及一种主动刹车安全距离判断方法、系统及主动刹车控制方法。所述方法包括:采集不同类型的路面在不同环境下的信息,对其进行标注形成数据集;对数据集进行训练测试,生成路面识别模型;实时采集当前路面图像,通过路面识别模型,实时识别出当前路面类型,并输出路面识别结果;当主动刹车触发时,主动刹车系统将路面识别结果映射成摩擦系数;根据摩擦系数以及车辆当前车速计算安全刹车距离。本发明基于提前建立的路面识别模型,通过车辆前视摄像头来获取当前路面图像,并根据路面识别模型,实时识别出当前路面类型,将路面识别结果映射成摩擦系数,根据摩擦系数以及车辆当前车速计算安全刹车距离,并结合安全刹车距离对车辆进行制动处理。
Active braking safety distance judgment method and system and active braking control method
主动刹车安全距离判断方法、系统及主动刹车控制方法
2023-04-14
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / 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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