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Estimation of a Speed Hump Profile Using Quarter Car Model

机译:使用四分之一汽车模型估算速度驼峰轮廓

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In the past few years, the topics concerning vehicular communications have been in conducting researches. One research topic is to acquire important information (e.g., traffic conditions, weather conditions) necessary to disseminate to car drivers. Road profile information is very important information that the drivers who know this in advance can use to avoid accidents. Speed hump on a road, which is one of the road profile information, can cause an accident especially at night if a driver has never passed through the road before. This paper proposes a technique to estimate speed hump profile using quarter car model. In this technique, two acceleration sensors are needed to install at sprung mass and unsprung mass of a car. The signals of the two sensors are then passed through the estimation model to get the speed hump profile in time unit (i.e., height versus time). To obtain the speed hump profile in space unit (i.e., height versus distance), the information of car velocities while passing the speed hump is required. Simulation results from Simulink confirm that the proposed technique can estimate speed hump profile accurately.
机译:在过去的几年中,有关车辆通信的主题一直在进行研究。一个研究主题是获取向汽车驾驶员传播所必需的重要信息(例如交通状况,天气状况)。道路概况信息是非常重要的信息,提前知道这一点的驾驶员可以使用它来避免发生事故。道路上的速度驼峰是道路轮廓信息之一,如果驾驶员以前从未经过过道路,则可能会导致事故,尤其是在晚上。本文提出了一种使用四分之一汽车模型估算速度驼峰轮廓的技术。在这种技术中,需要两个加速度传感器来安装在汽车的弹簧悬挂质量和非弹簧悬挂质量上。然后将两个传感器的信号通过估算模型,以时间单位(即高度与时间)获得速度驼峰轮廓。为了获得空间单位中的速度驼峰轮廓(即,高度与距离的关系),需要通过速度驼峰时的车速信息。 Simulink的仿真结果证实,所提出的技术可以准确估计速度驼峰轮廓。

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