【文章內(nèi)容簡介】 ise in the 50100Hz frequency band, thus the acoustic quality in cab improved greatly.Key words: test。 modal analysis。 inner noise。 bodyinwhite機動車用喇叭聲壓級測量不確定度分析李景淵(重慶車輛檢測研究院 國家客車質(zhì)量監(jiān)督檢驗中心) 【摘要】以DL50型機動車用喇叭為試驗對象，采用JJG 1059—1999《測量不確定評定和表示》規(guī)定的評定方法，對按照GB 15742—2001《機動車用喇叭的性能要求及試驗方法》規(guī)定進行機動車用喇叭聲壓級測量時引起的不確定度的各種因素進行了分析和評定。分析結(jié)果表明，機動車用喇叭聲壓級測量不確定度主要來源于試驗環(huán)境，與被測物體發(fā)出聲響的頻率有關(guān)。主題詞：機動車用喇叭 聲壓級 測量 不確定度Uncertainty in Measurement on Sound Pressure Level of Horn for Motor VehicleLi Jingyuan(Chongqing Vehicle Test amp。 Research Institute。 National Coach Quality Supervision and Test Center)【Abstract】With the evaluation method specified in “The evaluation and expression of uncertainty in measurement” JJG 1059—1999, the factors causing uncertainty in measurement of sound pressure level of horn for motor vehicle according to the stipulation of GB 15742—2001 “The performance requirement and test method of horn for motor vehicle” were analyzed and estimated with the horns for motor vehicle DL50 as test sample. The analysis results showed that the uncertainty mainly came from test environment and is related with the sound frequency of measured subject.Key words: Horn for motor vehicle。 Sound level。 Measurement。 Uncertainty基于CATIA二次開發(fā)的儀表盤視野校核鄭發(fā)勇1 沈利冰1 高衛(wèi)民2 徐康聰2(1．上海交通大學；2．上海汽車集團股份有限公司技術(shù)中心)【摘要】以轎車儀表盤視野為研究對象，結(jié)合轎車總布置和相關(guān)法規(guī)標準，建立了適合CATIA的儀表盤視野設計流程。根據(jù)設計流程，利用CATIA二次開發(fā)軟件CAA（組建應用架構(gòu)），設計開發(fā)出了能被不同車型共用的CATIA視野校核模塊。將該視野校核模塊應用在某款新車型上，從運行結(jié)果可得出駕駛員在觀察儀表盤時視線受到轉(zhuǎn)向盤輪緣、輪輻和輪轂遮擋而在儀表盤上形成的盲區(qū)，實現(xiàn)了儀表盤視野的自動校核。主題詞：儀表盤視野 CATIA 二次開發(fā) Secondary Development of Instrument Cluster Vision Checking Based on CATIAZheng Fayong1, Shen Libing1,Gao Weimin2, Xu Kangcong2 (1. Shanghai Key Laboratory of Digital Autobody, Shanghai Jiaotong University。 2. SAIC Motor Technical Center)【Abstract】Instrument cluster vision design flow has been established according to car general layout and related rules and standards with car instrument cluster vision as the study object. CATIA vision checking module that can be used in many different vehicle models has been developed with CATIA secondary development software CAA (building application structure) in accordance with design flow. After the module is used on a new vehicle model, the operation data shows that a blind area is formed on the cluster as a result that the driver’s vision is obstructed by steering wheel hub, wheel spoke and hub when the driver is observing the cluster, therefore, an automatic checking of cluster vision can be realized.Key words: Cluster Vision, CATIA, Secondary Development基于體壓分布信息的乘客識別系統(tǒng)設計研究董恩國 陳亮 秦程現(xiàn)(天津工程師范學院)【摘要】針對汽車安全氣囊系統(tǒng)設計了輔助控制系統(tǒng)——乘客識別系統(tǒng)，該系統(tǒng)通過對座椅壓力傳感器信號進行分析，根據(jù)乘員在座椅上的體壓分布信息識別乘客體型特征，輔助控制汽車安全氣囊的爆發(fā)。在車輛發(fā)生碰撞時，若副駕駛位是兒童或小個子乘客，安全氣囊將不會爆發(fā)。試驗結(jié)果表明，該系統(tǒng)可有效識別乘客類型，為準確控制安全氣囊爆發(fā)提供了保障。關(guān)鍵詞：安全氣囊； 乘客體型； 壓力分布； 識別系統(tǒng) Design and Research on Occupant Recognition System Based on Body Pressure Distribution InformationDong En’guo， Chen Liang， Qin Chengxian(Tianjin University of Technology and Education)【Abstract】A supplementary control systemoccupant recognition system is designed for automotive airbag system that can recognize occupant body type characteristic in accordance with body pressure distribution information of the occupant on seat through analysis of signal from seat pressure sensor and thus assist and control burstout of airbag. Whereas the airbag will not burst out if a child or a short occupant is detected on the codriver’s seat by the system when the vehicle collides. The test results show that the system can effectively recognize type of occupant, making ensure that the airbag burst out accurately.Key Words: Airbag。 Occupant body。 Pressure distribution。 Recognition system汽車AFS前照燈轉(zhuǎn)角動力學建模及仿真分析關(guān)志偉 崔惠中 鄭飛（天津工程師范學院）【摘要】結(jié)合線性2自由度車輛動力學模型建立了車輛轉(zhuǎn)向時的AFS數(shù)學模型，在Matlab/Simulink中建立了該數(shù)學模型的系統(tǒng)仿真模塊，得到3組不同變量（不同車速、前輪轉(zhuǎn)角和道路轉(zhuǎn)彎半徑）下的前照燈轉(zhuǎn)角變化曲線。仿真結(jié)果表明，車輛動力學因素在汽車轉(zhuǎn)向過程中對前照燈轉(zhuǎn)角有一定影響；基于車輛動力學的AFS能夠有效提高駕駛員可視范圍，