某乘用车安全气囊模块总成的开发设计及试验研究

发布时间：2018-03-21 09:14

本文选题：气囊模块　切入点：滑台　出处：《吉林大学》2014年硕士论文　论文类型：学位论文

【摘要】：在众多交通事故中，汽车交通事故发生频率居首，严重威胁人类安全随着国民经济的快速增长和人民生活水平的提高，汽车已经越来越多的走进普通家庭，汽车已经成为人们生活中最为普及的交通工具随着汽车的普及，人们对于汽车的安全意识不断增强，对其安全性必将提出新的要求提高汽车的安全性可以减少汽车交通事故中的人员伤亡和经济损失，最大限度地减少汽车交通事故中人员伤亡是汽车被动安全相关领域目前要解决的重要课题汽车乘员约束系统是汽车被动安全领域内的重要研究内容，安全气囊在乘用车上的配比率越来越高，如何协调好气囊与安全带等安全件，与车身很好的匹配，达到对乘员的最优保护效果是安全气囊系统优化的难点，本文结合安全气囊开发流程，详细介绍了某乘用车前排双气囊的开发设计过程及实验研究该乘用车气囊开发主要分两条主线：零部件开发与系统开发零部件开发充分考虑平台化，降低零部件成本ǐ减少开发周期，实现公司利润最大化气囊壳体采用平台结构的情况下，气体发生器ǐ气袋容积基本确定，，开发重点在于气囊饰盖（注塑模具）的开发ǐ与环境件的连接结构设计等气囊模块需外观符合主机才要求ǐ与环境件匹配合格，性能实验（包括设计验证实验ǐ生产验证实验）合格之后可获得主机厂PPAP认可，达到量产状态气囊系统开发主要分为仿真阶段ǐ数据采集阶段ǐ滑台优化阶段ǐ实车验证阶段，贯穿整个过程的是安全气囊ECU的标定仿真阶段可以获得初步气袋参数，用于初次滑台优化实验，滑台优化实验与仿真交互进行，最终获得满足整车开发目标的气袋参数数据采集阶段获得ECU（安全气囊控制器）位置加速度数据ǐB柱加速度数据及安全带压力传感器数据等，之后确定法规速度下安全气囊ECU的碰撞点火时刻，用于滑台优化实验滑台优化实验确定最终的气袋参数之后，使用安装此参数气袋的气囊模块与安全气囊ECU进行实车验证实验，最后使用此次实验获得的车身数据与数据采集阶段的数据进行对比，进行安全气囊ECU的标定调整，从而确定安全气囊ECU的最终参数，导入生产ǐ获得主机厂PPAP认可，达到量产状态
[Abstract]:Among the many traffic accidents, the frequency of automobile traffic accidents is the highest, which seriously threatens the human security. With the rapid growth of the national economy and the improvement of people's living standards, cars have been more and more popular in ordinary families. Automobile has become the most popular means of transportation in people's life. With the popularity of automobiles, people's awareness of automobile safety is constantly increasing. It is necessary to raise new requirements for the safety of vehicles, which can reduce casualties and economic losses in automobile traffic accidents. Reducing casualties in Automobile Traffic Accidents to the maximum extent is an important subject to be solved in the Field of vehicle passive Safety. Passenger restraint system is an important research content in the field of vehicle passive safety. The ratio of airbag in passenger vehicle is higher and higher. How to coordinate airbag with seat belt and other safety parts is very good match with body. It is difficult to optimize the airbag system to achieve the optimal protection effect to the occupant. This paper introduces the development and design process and experimental research of the double airbag in front row of a passenger car in detail, combined with the development process of the airbag. The air bag development of passenger vehicle is mainly divided into two main lines: parts development and system development parts development take full account of platformization, reduce the cost of parts and reduce the development cycle, In the case of realizing the maximum profit of the company and adopting the platform structure, the volume of the air bag is basically determined by the gas generator. The emphasis of development lies in the development of air bag cover (injection mould) and the design of the connecting structure of environmental parts. The airbag modules need to meet the requirements of the host machine in order to match the environmental components. After the performance experiment (including design and verification experiment and production verification experiment) is qualified, it can be approved by PPAP of main engine factory, and the development of airbag system in mass production condition is mainly divided into simulation stage, data acquisition stage, slide platform optimization stage, and vehicle verification stage. Through the whole process, the initial air bag parameters can be obtained in the calibration simulation stage of airbag ECU, which can be used in the initial sliding platform optimization experiment, and the sliding platform optimization experiment and simulation interactive. Finally, the data collection of airbag parameters satisfying the development goal of the whole vehicle is obtained, and the acceleration data of position acceleration of ECU (airbag controller) and the acceleration data of seat belt pressure sensor are obtained, such as the acceleration data of B column and the data of seat belt pressure sensor. After determining the impact ignition time of airbag ECU under the regulation speed, after determining the final air bag parameters in the slide platform optimization experiment, the airbag module installed with this parameter and the airbag ECU were used to carry out the actual vehicle verification experiment. Finally, the body data obtained from this experiment is compared with the data from the data collection stage, and the calibration adjustment of the airbag ECU is carried out, and the final parameters of the airbag ECU are determined, and the final parameters of the airbag ECU are determined. The final parameters of the airbag ECU are confirmed by the main engine factory PPAP. Mass production state
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.61

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