点火时刻对缸内直喷汽油机燃烧过程影响的研究文档格式.docx

1、侧安全气囊在侧面约束系统中的集成（摘要链接） 7变踏板比制动踏板的优点（摘要链接） 8复合式悬架计算与设计（摘要链接） 9汽车排气系统局部疲劳耐久性试验仿真分析（摘要链接） 10客车倾翻试验生存空间分析及结构强度评价（摘要链接） 11强制风冷式制动鼓温升试验研究（摘要链接） 12汽车轴承用波形套的成型与试验分析（摘要链接） 13仪表板横梁支架焊缝设计质量评价方法（摘要链接） 14纯电动汽车最佳动力性换挡规律研究杨 易 江清华 周 兵 王继生（湖南大学 汽车车身先进设计制造国家重点实验室）【摘要】通过建立纯电动汽车电池系统和电机系统的数值模型，分析了纯电动汽车的最佳动力性换档规律。根据电池最大放

2、电功率随电池荷电状态减小而减小的特性，制定出当电池最大放电功率大于或小于电机最大输入功率时的动态3参数换挡规律和动态4参数换挡规律。仿真结果表明，所制定的换挡规律获得了比传统的2参数换挡规律更好的汽车加速性。 主题词：纯电动汽车 动力性 换挡规律A Study on the Optimal-Power Shift Schedule for Electric VehicleYang Yi, Jiang Qinghua, Zhou Bing, Wang Jisheng（State Key Laboratory of Advanced Design and Manufacture for Vehic

3、le Body, Hunan University） 【Absract】Through the establishment of numerical models of battery system and motor system of electric vehicle, the optimal-power shift schedule of electric vehicle is analyzed. According to the feature that the maximum discharge power of battery decreases with the decrease

4、 of SOC, three-parameter and four-parameter dynamic shift schedule are developed when the maximum discharge power of battery is greater than or less than the maximum input power of motor. The simulation results show that the better vehicle acceleration is obtained from the shift schedule developed i

5、n the text compared with the conventional two-parameter shift schedule. Key words: Electric vehicle （EV）, Power performance, Shift schedule基于GT-Power仿真的2.0L汽油机动力性能分析与优化李 明 许 敏 赵金星 徐宏昌 李 冕（上海交通大学 汽车电子控制技术国家工程实验室） 【摘要】利用GT-Power仿真工具建立了某2.0L汽油机性能仿真模型，并利用原机台架试验数据验证了该模型的正确性。分析了两阶段可变进气歧管长度和可变进气门正时方案对发动机性能

6、的影响，并对原机进气歧管长度、配气相位、稳压腔容积和点火角等参数进行了优化。结果表明，优化后汽油机最大转矩从180 Nm提高到196.5 Nm, 额定功率达到102kW，而油耗与原机基本保持一致。 主题词：汽油机 可变进气歧管 可变气门正时 优化Performance Analysis and Optimization of a 2.0L Gasoline Engine based on GT-Power SimulationLi Ming, Xu Min, Zhao Jinxing, Xu Hongchang, Li Mian（National Engineering Laboratory

7、for Automotive Electronic Control Technology, Shanghai Jiao Tong University） 【Absract】The performance model of a 2.0L engine is established using GT-Power, and the effectiveness of this model is verified by using rig test data of the 2.0L engine. The effect of two-stage variable intake manifold leng

8、th and variable intake valve timing plan on engine performance has been analyzed, and related parameters, including the intake manifold length, valve timing, intake chamber volume, and ignition angle, etc., are optimized in this work. The optimized results show that the engine performance has been i

9、mproved significantly,with the largest torque increases to 196.5 Nm from 180 Nm, and the rated power increases to 102 kW while the fuel consumption is almost kept unchanged. Gasoline engine, variable intake manifold, Variable intake valve timing, Optimization双VCT结合可变进气管对CA6GV发动机性能的影响赵弘志1，2 周浩1 于秀敏1

10、杜文畅2 陆晓磊2（1.吉林大学 汽车动态模拟国家重点实验室；2.中国第一汽车集团公司技术中心） 【摘要】以采用双VCT和可变进气管的V6气道喷射发动机为研究对象，阐述了不同的VCT和可变进气管对发动机充气、燃烧、油耗和排放等性能的影响。结果表明，恰当的进排气VCT开度组合辅以不同的进气管容积腔状态可以有效改善发动机充气效率和降低排放；不同的进/排气门开启时刻、气门重叠角以及进气管容积腔大小对放热规律的影响不大；恰当地控制进/排气门开启时刻和气门重叠角，再结合点火提前角的优化有助于改善油耗。发动机 VCT 进气管 可变容积腔 性能Performance of CA6GV Engine infl

11、uenced by Dual-VCT and Variable Intake ManifoldZhao Hongzhi1,2, Zhou Hao1, Yu Xiumin1, Du Wenchang2, Lu Xiaolei2（1. State Key Laboratory of Automobile Dynamics Simulation, Jilin University;2. China FAW Group Corporation R&D Center） 【Absract】With V6 PFI engine with dual VCT and variable intake manifo

12、ld as research object, the influence of different VCT and variable intake manifold on engine charge, combustion, fuel consumption and exhaust, etc. is expounded in the paper. The results show that suitable combination of intake and exhaust VCT opening, along with different intake manifold volume cav

13、ity state can effectively improve engine charge efficiency and reduce emission; different intake/exhaust valve opening timing, valve overlap angle and size of the intake manifold volume cavity have minor influence on heat dissipation rule; control intake/exhaust valve opening timing and valve overla

14、p angle properly, along with optimization of advance ignition angle contribute to fuel consumption improvement. Engine, VCT, Intake manifold, Variable Volume Cavity, Performance基于刚度及模态分析的某微型车车身轻量化设计廖鸿胡1 徐 龙2 成艾国2 陈 雪3（1上汽通用五菱汽车股份有限公司；2湖南大学 汽车车身先进设计制造国家重点实验室；3湖南湖大三佳汽车技术开发有限公司） 【摘要】利用Nastran软件建立了某微型车白

15、车身的有限元分析模型，对其进行了刚度及模态分析。对比分析轻量化前、后的计算结果可知，轻量化后车身刚度和模态在可接受的范围内，达到了车身质量减轻的目的。试验验证表明，轻量化后有限元分析结果和实车试验结果一致性较高。微型车 车身 轻量化 刚度 模态 有限元Lightweight Design of a Minibus Body Based on Stiffnessand Modal AnalysisLiao Honghu1, Xu Long2, Cheng Aiguo2, Chen Xue3（1. SGMW Automobile Co., Ltd; 2. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University; 3. Hunan Sunja Auto R&D Co., Ltd） 【Absract】In this paper, the finite el