【正文】 家重點實驗室）【摘要】為了提高仿真模型的計算效率，基于環(huán)模型理論系統(tǒng)研究了輪胎二維有限元模型的建模技術(shù)、參數(shù)確定方法和輪胎包容特性分析技術(shù)。該顯示系統(tǒng)能夠?qū)崟r接收和解析CAN總線信息，以圖形化的方式顯示混合動力汽車各種運(yùn)行參數(shù)，并通過觸摸屏實現(xiàn)與駕駛員的交互。該系統(tǒng)硬件上采用了高性能的ARM9處理器，主要包括處理器模塊、顯示交互模塊和通信模塊；軟件上采用了Windows CE嵌入式操作系統(tǒng)，主要由操作系統(tǒng)、驅(qū)動程序和應(yīng)用程序3部分組成。 Multiinformation display system。確定了這些控制參數(shù)的控制規(guī)則，并提出了基于積分分離PID控制的起步離合器控制算法。 Clutch電控氣動式可調(diào)阻尼減振器的設(shè)計與應(yīng)用江浩斌 孫鵬 胡雋秀 汪若塵(江蘇大學(xué))【摘要】確定了電控氣動式可調(diào)阻尼減振器在“軟”、“硬”阻尼狀態(tài)下的阻尼力設(shè)計目標(biāo)。將該可調(diào)阻尼減振器裝車進(jìn)行的道路平順性試驗表明，與被動式減振器相比，采用可調(diào)阻尼減振器可使客車的行駛平順性得到提高。 Bench test。結(jié)果表明，近似模型技術(shù)對于汽車性能的平衡優(yōu)化是一種十分有效的方法。 Approximate Model。主題詞：轉(zhuǎn)向加速工況 驅(qū)動防滑控制系統(tǒng)　滑轉(zhuǎn)率　算法Algorithm Research on Slip Ratio of Acceleration Slip Regulation under Vehicle Cornering SituationLi Zhiyuan1, ZhangBiao2, LiHaodong1, Chang Yunxia1, Hao Ziyang1(1. Hebei University。主題詞： 液力緩速器 制動 動態(tài)仿真 Dynamic Simulation Research of Hydrodynamic Retarder in Brake ProcessJia Yunhai1,3 Zhang Wenming1 Yang Jue1 Dong Cuiyan2 Gao Quanfeng2 Song Fei3( of Science and Technology Beijing；2. Beijing Shougang Institute of Duty Truck； Institute of ElectroMachining)【Abstract】Based on the beam current theory of hydrodynamics, the dynamics and kinematics status of fluids in hydrodynamic retarder are analyzed, the calculation formulas of retarder brake force and oil charge and release time are deduced. Braking dynamic simulation model is built in SIMULINKtoolbox。研究了進(jìn)氣溫度和冷卻液溫度對高壓共軌柴油機(jī)起動時間和排放性能的影響規(guī)律。計算結(jié)果表明，優(yōu)化后的風(fēng)道各出口流量分配合理，壓力損失明顯降低，前擋風(fēng)玻璃上的氣流速度大小分布合理。 2 Beijing Automotive Technology Center)【Abstract】A certain automobile defrosting duct was simulated by finite volume method (FVM) based on unstructured mesh, the defrosting duct was also optimized and calculated based on the results of simulation, it is shown that the flux distribution of every outlet for optimized duct is reasonable, the pressure loss is reduced obviously and the flow velocity and distribution on the front windshield is also reasonable. The flow velocity near the front windshield was measured with hotbulb probe and the results show that the flow velocity near the front windshield increased obviously for the modified duct, and the distribution was more even.Key words: Defrosting duct。試驗結(jié)果表明,驅(qū)動軸的傳動效率隨萬向節(jié)夾角的增大而減小，而且兩側(cè)萬向節(jié)夾角相等時驅(qū)動軸整體的傳動效率會有所改善；擋位（轉(zhuǎn)速和轉(zhuǎn)矩）對驅(qū)動軸傳動效率的影響不明顯，但是在大夾角狀態(tài)下，傳動效率隨擋位升高有增大趨勢；在外側(cè)萬向節(jié)夾角較大的條件下，如果轉(zhuǎn)矩不變而轉(zhuǎn)速降低，則傳動效率明顯減小。 Constant Velocity Drive Shaft, Transmission Efficiency汽車液壓動力轉(zhuǎn)向器臺架試驗方法研究秦全權(quán) 劉旌揚(yáng) 郝金良（一汽海馬汽車有限公司）【摘要】以汽車齒輪齒條液壓動力轉(zhuǎn)向器為例，針對該總成空載轉(zhuǎn)動力矩試驗、轉(zhuǎn)向力特性試驗、逆向疲勞試驗、正轉(zhuǎn)耐久試驗、溫度交變密封試驗和噪聲試驗等6個項目的臺架試驗方法進(jìn)行了研究，闡述了各項目的試驗?zāi)康摹⒃囼灧椒ê徒Y(jié)果、試驗設(shè)備的配置及與現(xiàn)有試驗標(biāo)準(zhǔn)的差別等，為修訂汽車動力轉(zhuǎn)向器行業(yè)標(biāo)準(zhǔn)提供了參考和依據(jù)。 the deficiency of convex value can lead to edge effect, but excessive convex value can also reduce carrying capacity, . there is a optimum value for convex value。）【摘要】針對車輛行駛時鋁合金車身上某些焊接部位常常發(fā)生開裂的現(xiàn)象，對車身常用的Al6063材料T型焊接接頭低、等和高強(qiáng)度匹配進(jìn)行仿真分析，研究了T型焊接接頭受靜載荷時的應(yīng)力應(yīng)變和焊縫強(qiáng)度對焊接接頭應(yīng)力應(yīng)變分布的影響。 Twelded joint。主題詞: 車身 復(fù)雜過渡曲面 光順方法 UG Smoothing Methods for Complex Transitional Surfaces of Autobody based on UGXu Jiachuan Li Di Gao Shangpeng(Shandong University of Science and Technology)【Abstract】Construction methods for plex transitional curved surfaces in UG are discussed in this paper, the continuity of all kinds of smoothing methods，which is used as the principle of selection, are given based on the requirements of auto body Aclass surfaces. The smoothing methods for plex transitional curved surfaces are given by smoothing waist surfaces for an autobody, then the theoretical curves are emphasized in transitional surfaces smoothing. The example verified that this method can construct plex transitional surfaces quickly and finely.Key words: Bo