【正文】 力學模型建立了車輛轉向時的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、前輪轉角和道路轉彎半徑）下的前照燈轉角變化曲線。試驗結果表明，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。將該視野校核模塊應用在某款新車型上，從運行結果可得出駕駛員在觀察儀表盤時視線受到轉向盤輪緣、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。 Sound level。分析結果表明，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。主題詞：試驗 模態(tài)分析 車內(nèi)噪聲 白車身 Application of Test Modal Analysis Technology in Reducing Noise of CarWang Yong，Zhang Yongli(Anhui Jianghuai Automotive Co., Ltd. )【Abstract】The bodyinwhite for a car was analyzed and tested by using test modal analysis technology, and according to the results of the modal test, the inner noise was forecasted, and then the bodyinwhite was optimized. The parison test showed that the inner noise for optimized bodyinwhite reduced 3dB（A）, especially there is substantial reduction of lowfrequency noise in the 50100Hz frequency band, thus the acoustic quality in cab improved greatly.Key words: test。臺架試驗結果表明，該發(fā)動機各項指標值均達到設計目標值，功率、扭矩已達到同類型汽油機水平，從而解決了功率下降問題，排放也達到了國Ⅲ標準。2. Tsinghua University)【Abstract】The vibration transmission and radiation ways that induced noise in cab were introduced in this paper. The influence rule and control methods of engine on vehicle’s vibration and noise were analyzed based on the engine excitation characteristics and the different transmission modes. The difficulties in automotive powertrain vibration isolation mounting design and the improved technologies of passive mounting were discussed based on the conflicting demands and the constraint conditions. Key words: Powertrain。 fractal theory汽車動力總成隔振難點與被動懸置改進設計范讓林1 呂振華2（1. 北京科技大學；2. 清華大學）【摘要】簡述了發(fā)動機導致車內(nèi)噪聲的兩種方式，即振動傳遞方式和輻射方式。 the shifting force was small, and the wear ratio of gears was small at high gears position。 Technical Center)【Abstract】Based on a car developed by SAIC, the optimization design of contact stiffness of pedestrian leg impact areas was carried out with the software mode FRONTIER and MADYMO, and the minimum deformation space required for leg impact areas under the prerequisite of meeting the requirement of 2003/102/EC Directive Phase I was also gotten。關鍵詞：白車身 疲勞壽命 道路載荷譜 Fatigue Calculation of BIW Based on the Measured Road Load DataZhu Tao, Song Jian, Li Liang(State Key Laboratory of Automotive Safety and Energy Conservation, Tsinghua University) 【Abstract】The road load data of a car in the proving ground is measured by the 6Axis Wheel Load Measurement System, based on it and with the aid of many CAE methods, including FEA, MBD analysis and Fatigue analysis, the fatigue life distribution of the BIW of this car is calculated and analyzed under such measured RLD. And the integrated fatigue analysis flow, which bined testing according with real condition and virtual analysis, is presented. Such flow can also be used for the fatigue analysis of the chassis parts. Key Words: BIW, Fatigue life, RLD概念設計與FE仿真評估在行人腿部保護車身設計中的應用苗 強1 高衛(wèi)民2 王大志2 馬美林2 劉軍勇2(。 Powertrain。關鍵詞：汽車 動力總成 節(jié)能 環(huán)境保護 The Automobile Powertrain Core Technology amp。分析了中國汽車動力總成節(jié)能環(huán)保的主要課題，闡述了目前汽車動力總成產(chǎn)品的主要技術，包括汽油直噴技術、汽油增壓技術、發(fā)動機起停技術、發(fā)動機可控配氣機構、Downsizing技術、新一代柴油共軌技術、發(fā)動機電子控制技術、柴油機后處理技術、多擋自動變速器技術、油電混合動力技術，并剖析了中國第一汽車集團公司的技術對策及產(chǎn)品戰(zhàn)略。 stop, VTEC, downsizing, new generation diesel mon rail, engine electronic control, diesel after treatment, multigears AT and fuelelectric hybrid, finally FAW’s technology and product strategy were analyzed.Key words: Automobile。同時，給出了符合真實工況的試驗與虛擬相結合的白車身一體化疲勞分析流程，該流程同樣適用于底盤零部件的疲勞分析。主題詞：車身 行人腿部碰撞 概念設計 有限元仿真The Application of Concept Design and FE Simulation Assessment in the Design of Pedestrian Leg ProtectionMiao Qiang 1, Gao Weimin2,Wang Dazhi 2, Ma Meilin 2,Liu Junyong2( University。 主題詞：同步器 接觸磨損 換擋力 分形理論 A Model for Synchronizer Contact Wear Based on Fractal TheoryDai Feng, Lu Tongli, Zhang Jianwu(Shanghai Jiao Tong University)【Abstract】Based on fractal theory of breakin wear, adhesive wear theory and