| 汽车防追尾碰撞数学模型研究 |
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| 引用本文： | 连晋毅,华小洋.汽车防追尾碰撞数学模型研究[J].中国公路学报,2005,18(3):123-126. |
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| 作者姓名： | 连晋毅 华小洋 |
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| 作者单位： | 绍兴文理学院,工学院,浙江,绍兴,312000 |
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| 基金项目： | 绍兴市科技重点项目(2003101) |
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| 摘 要： | 为了提高车辆在高速行驶状态下的主动安全性能,研究了处于追尾行驶状态的本车与前车的运动学特征;针对前车的不同运动状态分别推导出了跟车距离的计算模型并分析了模型中3个关键参数的随机性和动态性,对制动迟滞时间提出了基于模糊推理的确定方法,对本车制动减速度和前车的运动加速度提出了比较实用的动态测算公式;另外,研究了防追尾碰撞的控制与执行,建立了动态调整安全制动停车距离的神经网络模型,提出了基于危险裕度判别的安全控制方法。
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| 关 键 词： | 汽车工程 防追尾碰撞 神经网络 数学建模 跟车距离 |
| 文章编号： | 1001-7372(2005)03-0123-04 |
| 修稿时间： | 2004年9月18日 |
Study of mathematics model for rear-end collision avoidance system |
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| LIAN Jin-yi,HUA Xiao-yang.Study of mathematics model for rear-end collision avoidance system[J].China Journal of Highway and Transport,2005,18(3):123-126. |
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| Authors: | LIAN Jin-yi HUA Xiao-yang |
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| Abstract: | To improve initiative security of vehicle at high speed,authors firstly study the athletic characteristics for vehicle in rear-end driving.Based on the running state of front car,authors bring forward the model for calculation of follow distance.Next,authors analyze randomness and dynamic of three key parameters in model,give out the method to confirm slow-moving time of brake by means of fuzzy consequence,and give out the formulas to calculate acceleration of back car to brake and front car to drive.Otherwise,authors study the control and perform for rear-end collision avoidance,establish the BP model to adjust distance for safe parking in real time,and bring forward the control means according to the dangerous degree rule. |
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| Keywords: | automobile engineering rear-end collision avoidance neural network mathematical modelling following distance of car |
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