某乘用車安全氣囊模塊總成的開發(fā)設計及試驗研究
發(fā)布時間:2018-03-21 09:14
本文選題:氣囊模塊 切入點:滑臺 出處:《吉林大學》2014年碩士論文 論文類型:學位論文
【摘要】:在眾多交通事故中,汽車交通事故發(fā)生頻率居首,嚴重威脅人類安全隨著國民經(jīng)濟的快速增長和人民生活水平的提高,汽車已經(jīng)越來越多的走進普通家庭,汽車已經(jīng)成為人們生活中最為普及的交通工具隨著汽車的普及,人們對于汽車的安全意識不斷增強,對其安全性必將提出新的要求提高汽車的安全性可以減少汽車交通事故中的人員傷亡和經(jīng)濟損失,最大限度地減少汽車交通事故中人員傷亡是汽車被動安全相關領域目前要解決的重要課題 汽車乘員約束系統(tǒng)是汽車被動安全領域內(nèi)的重要研究內(nèi)容,安全氣囊在乘用車上的配比率越來越高,如何協(xié)調(diào)好氣囊與安全帶等安全件,與車身很好的匹配,達到對乘員的最優(yōu)保護效果是安全氣囊系統(tǒng)優(yōu)化的難點,本文結合安全氣囊開發(fā)流程,詳細介紹了某乘用車前排雙氣囊的開發(fā)設計過程及實驗研究 該乘用車氣囊開發(fā)主要分兩條主線:零部件開發(fā)與系統(tǒng)開發(fā)零部件開發(fā)充分考慮平臺化,降低零部件成本ǐ減少開發(fā)周期,實現(xiàn)公司利潤最大化氣囊殼體采用平臺結構的情況下,氣體發(fā)生器ǐ氣袋容積基本確定,,開發(fā)重點在于氣囊飾蓋(注塑模具)的開發(fā)ǐ與環(huán)境件的連接結構設計等氣囊模塊需外觀符合主機才要求ǐ與環(huán)境件匹配合格,性能實驗(包括設計驗證實驗ǐ生產(chǎn)驗證實驗)合格之后可獲得主機廠PPAP認可,達到量產(chǎn)狀態(tài)氣囊系統(tǒng)開發(fā)主要分為仿真階段ǐ數(shù)據(jù)采集階段ǐ滑臺優(yōu)化階段ǐ實車驗證階段,貫穿整個過程的是安全氣囊ECU的標定仿真階段可以獲得初步氣袋參數(shù),用于初次滑臺優(yōu)化實驗,滑臺優(yōu)化實驗與仿真交互進行,最終獲得滿足整車開發(fā)目標的氣袋參數(shù)數(shù)據(jù)采集階段獲得ECU(安全氣囊控制器)位置加速度數(shù)據(jù)ǐB柱加速度數(shù)據(jù)及安全帶壓力傳感器數(shù)據(jù)等,之后確定法規(guī)速度下安全氣囊ECU的碰撞點火時刻,用于滑臺優(yōu)化實驗滑臺優(yōu)化實驗確定最終的氣袋參數(shù)之后,使用安裝此參數(shù)氣袋的氣囊模塊與安全氣囊ECU進行實車驗證實驗,最后使用此次實驗獲得的車身數(shù)據(jù)與數(shù)據(jù)采集階段的數(shù)據(jù)進行對比,進行安全氣囊ECU的標定調(diào)整,從而確定安全氣囊ECU的最終參數(shù),導入生產(chǎn)ǐ獲得主機廠PPAP認可,達到量產(chǎn)狀態(tài)
[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
【學位授予單位】:吉林大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:U491.61
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