摘要
本文针对常规能量守恒定律计算车速的方法会出现计算结果不符合真实情况的问题,引入运用四轮制动拖印计算事故车速的方法,同时结合实际案例使用视频图像车速计算方法进行验证,证明运用四轮制动拖印计算事故车速方法的计算结果比常规能量守恒定律方法得到的结果更加符合实际情况。
The method of calculating the vehicle speed based on the conventional law of conservation of energy will present the problem of the calculation result not conforming to the actual situation. To address this problem, the author used four-wheel skid marks to calculate the speed of the accident vehicle, then used the video image speed calculation method to verify the results in the actual case. Finally, the author concluded that by using the four-wheel skid marks calculation method to obtain the accident vehicle speed can get a speed more conformable to the actual situation than that obtained by the conventional law of conservation of energy calculation method.
出处
《道路交通科学技术》
2019年第4期26-29,共4页
Road Traffic Science & Technology
关键词
能量守恒定律
四轮制动拖印
视频图像
车速计算
law of conservation of energy
four-wheel skid marks
video image
speed calculating