安全气囊的性能优化
发布时间：2018-10-16 20:28
【摘要】：随着高速公路的普及，经济水平的提高，汽车已经成为了人们外出必备的交通工具，汽车的安全性得到了普遍的提升，从增加车身的碰撞强度到制动系统功能的提升从各方面都提升了汽车的主动安全性能。交通事故发生的瞬间，往往伴随着二次碰撞的发生，减少二次碰撞的发生可以有助于降低事故致死率与致伤率。这些年来汽车安全座椅及安全气囊的应用大大降低了事故发生时驾乘人员的伤亡率。但是安全气囊某些方面的局限性，采用单一固定的模式对驾乘人员进行保护，导致许多负面效应同时发生。本文针对安全气囊的工作过程进行分析研究，找出安全气囊系统存在的缺陷，通过对乘员的视觉识别技术和对安全气囊点火控制算法的优化来提升安全气囊在工作过程中对乘员的保护作用。在视觉识别分类系统中采用了图像处理技术，，将运动图像的处理方法应用到了对乘员的分类识别中，在分类识别方法中进行边缘检测时引入了多种边缘检测算子，图像预处理方法中借助图像的灰度化处理达到了对图像效果的修复功能。在对安全气囊点火控制算法进行优化的过程中，首次采用了多参数点火算法的概念对气囊的点火控制算法进行优化。以点火条件和点火时刻两个参数结合来完成对点火系统的控制，这样可以达到精确点火，避免气囊发生提早点爆或者误爆的现象。
[Abstract]:With the popularization of freeway and the improvement of economic level, automobile has become the necessary vehicle for people to go out, and the safety of automobile has been generally improved. From increasing the impact intensity of the body to improving the function of the braking system, the active safety performance of the vehicle is improved in all aspects. When traffic accident happens, it is often accompanied by secondary collision. Reducing the occurrence of secondary collision can help to reduce the fatality rate and injury rate. Over the years, the application of car seat and airbag has greatly reduced the casualty rate of drivers. However, because of the limitation of airbag in some aspects, the single fixed mode is used to protect the driver, which results in many negative effects occurring at the same time. In this paper, the working process of airbag is analyzed, and the defects of airbag system are found out. In order to improve the protective effect of airbag on occupants, the visual identification technology and the optimization of ignition control algorithm for airbag are used to improve the safety airbag protection. The image processing technology is used in the visual recognition classification system. The moving image processing method is applied to the classification and recognition of the occupants. In the classification and recognition method, a variety of edge detection operators are introduced. In the image preprocessing method, the restoration function of image effect is achieved with the help of grayscale image processing. In the process of optimizing the airbag ignition control algorithm, the concept of multi-parameter ignition algorithm is used for the first time to optimize the airbag ignition control algorithm. The ignition system can be controlled by the combination of ignition condition and ignition time, which can achieve accurate ignition and avoid the phenomenon of early ignition or false explosion of air bag.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.61
本文编号：2275545
[Abstract]:With the popularization of freeway and the improvement of economic level, automobile has become the necessary vehicle for people to go out, and the safety of automobile has been generally improved. From increasing the impact intensity of the body to improving the function of the braking system, the active safety performance of the vehicle is improved in all aspects. When traffic accident happens, it is often accompanied by secondary collision. Reducing the occurrence of secondary collision can help to reduce the fatality rate and injury rate. Over the years, the application of car seat and airbag has greatly reduced the casualty rate of drivers. However, because of the limitation of airbag in some aspects, the single fixed mode is used to protect the driver, which results in many negative effects occurring at the same time. In this paper, the working process of airbag is analyzed, and the defects of airbag system are found out. In order to improve the protective effect of airbag on occupants, the visual identification technology and the optimization of ignition control algorithm for airbag are used to improve the safety airbag protection. The image processing technology is used in the visual recognition classification system. The moving image processing method is applied to the classification and recognition of the occupants. In the classification and recognition method, a variety of edge detection operators are introduced. In the image preprocessing method, the restoration function of image effect is achieved with the help of grayscale image processing. In the process of optimizing the airbag ignition control algorithm, the concept of multi-parameter ignition algorithm is used for the first time to optimize the airbag ignition control algorithm. The ignition system can be controlled by the combination of ignition condition and ignition time, which can achieve accurate ignition and avoid the phenomenon of early ignition or false explosion of air bag.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.61
【参考文献】
相关期刊论文 前2条
1 马春生,黄世霖,张金换,白远利;汽车正面碰撞法规中乘员保护指标探讨[J];公路交通科技;2004年01期
2 马丽红;张学东;赵忠夫;;基于正交Legendre矩的虹膜识别算法[J];计算机应用;2006年04期
本文编号：2275545
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