论文(设计)基于发动机外特性的CVT 速比控制方法研究35827.doc

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1、目 次基于发动机外特性的CVT速比控制方法研究(摘要链接)1基于dSPACE的ASR硬件在环仿真平台开发及ECU性能试验(摘要链接)2平衡悬架失效模式与影响的有限元分析(摘要链接)3发动机进气系统声学元件设计方法研究(摘要链接)4轿车乘坐室轰鸣声的分析与控制研究(摘要链接)5概念设计中梁截面对车身刚度影响的研究(摘要链接)6汽车ABS自适应模糊滑模控制算法研究(摘要链接)7屏蔽层对汽车CAN总线抗干扰能力影响的研究(摘要链接)8液力缓速器内流场三维瞬态数值模拟及特性预测(摘要链接)9燃料电池轿车悬架匹配研究(摘要链接)10汽车电子点火模块检测系统的研制(摘要链接)11在用柴油公交车燃用生物柴油

2、的试验研究(摘要链接)12混合动力客车与传统客车排放测试研究(摘要链接)13汽车用户道路行驶载荷谱测量及推断方法研究(摘要链接)14镁合金在汽车使用中的节能效果评价(摘要链接)15基于发动机外特性的CVT速比控制方法研究王加雪1,2 王庆年1 周云山3 王晓昱2(1. 吉林大学;2. 装甲兵技术学院;3.湖南大学) 【摘要】针对传统无级变速器速比控制中速比变化频繁,从而导致无级变速器效率低下、磨损严重等问题,研究了一种基于发动机外特性的速比控制方法,即在保证经济性与动力性的条件下限制无级变速器速比变化。理论研究和仿真分析结果表明,所提出的最佳经济区速比控制方法可以有效降低无级变速器速比调节频率

3、,从而提高无级变速器效率与使用寿命。 关键词:CVT 速比控制 外特性Research on CVT Speed Ratio Control Based on External Characteristic of EngineWang Jiaxue1,2, Wang Qingnian1, Zhou Yunshang3, Wang Xiaoyu2(1. Jilin University; 2. Institute of Armored Vehicle Technology; 3. Hunan University)【Abstract】 To solve the problem of low ef

4、ficiency and serious wear of CVT caused by frequent change of speed ratio of conventional CVT speed ratio control, a speed ratio control method based on external characteristic of engine was researched, e.g. to limit variation of CVT speed ratio under the condition of ensuring economy and power perf

5、ormance. The theoretical study and simulation analysis results indicate that the proposed speed ratio control method in the optimal economic area can effectively reduce the frequency of speed ratio regulation of CVT, thus improve CVT efficiency and service life.Key words: CVT speed ratio control Ext

6、ernal characteristic基于dSPACE的ASR硬件在环仿真平台开发及ECU性能试验张为1 王伟达2 丁能根1 刘辉2 徐向阳1(1. 北京航空航天大学;2.北京理工大学)【摘要】简述了ASR硬件在环仿真平台的基本组成和工作原理,利用dSPACE实时仿真系统与所建立的车辆模型连接构成了ASR ECU硬件在环仿真系统。在该系统上验证了所开发ASR ECU的控制逻辑并对其参数进行了优化。将利用硬件在环仿真技术开发的ECU安装在某轻型车辆上进行试验,结果表明,该车驱动轮的过度滑转情况得到抑制;该系统可较好地模拟车辆系统和试验环境,并可替代部分实车试验。主题词:ASR 硬件在环仿真 E

7、CU 试验Development of ASR Hardware-In-the-Loop Simulation Platform based on dSPACE and Performance Tests of the ECUZhang Wei1, Wang Weida2, Ding Nenggen1, Liu Hui2, Xu Xiangyang1(1. Beijing University of Aeronautics and Astronautics; Beijing Institute of Technology)【Abstract】Basic structure and operat

8、ing principle of ASR hardware in the in-the-loop simulation platform is briefed in the paper, in which dSPACE real-time simulation system and the established vehicle model are joined together to form ASR ECU hardware in-the-loop simulation system. Control logic of the developed ASR ECU is validated

9、in the system, and parameters are optimized. The ECU developed with the in-the-loop simulation technology is fitted on a light duty vehicle and tested, the result shows that overspin of the driving wheel is controlled, the system can simulate vehicle system and test environment and can used as subst

10、itute of road test.Key words: ASR ECU, Hardware-In-the-Loop simulation, ECU, Road tests平衡悬架失效模式与影响的有限元分析张建振 常连霞 马文松 (中国第一汽车集团公司技术中心) 【摘要】用有限元软件HYPERMESH、ABAQUS对某自卸车发生断裂的平衡悬架支架进行了强度分析,同时就失效模式进行了影响分析,并提出了结构改进方案。将新方案进行有限元计算结果表明,改进措施能够有效降低盲孔螺栓的应力并改善支架应力分布,满足设计要求。改进后悬架使用结果也证明原产品质量缺陷被彻底消除。关键词:平衡悬架支架 失效模式

11、有限元FEM Analysis on Failure Modes and Effects of the Equalizing SuspensionZhang Jianzhen; Chang Lianxia; Ma Wensong(FAW Group Corporation R&D Center)【Abstract】The strength of broken equalizing suspension bracket for a dump truck was analyzed based on finite element software HYPERMESH and ABAQUS, and

12、the effects of failure modes were also analyzed, then the modified solution of structure was presented. FEM results of new scheme showed that modified solution could reduce the stress of blind holes bolts and improved stress distribution of bracket, and met design requirements. It was indicated by a

13、ctual usage of improved bracket that the quality faults were eliminated completely.Key words: Equalizing Suspension Bracket, Failure Modes, FEM发动机进气系统声学元件设计方法研究岳贵平 卢炳武 刘英杰 刘杨(中国第一汽车集团公司技术中心)【摘要】利用GT-Power软件建立了某发动机模型,进行了进气系统插入损失的分析,并找到了插入损失的3个最大值。结合插入损失的计算结果,利用所开发的进气系统声学元件中心频率设计专家系统,充分考虑各声学元件传递损失影响参数

14、,依次进行了谐振腔、空滤器和四分之一波长管的设计。对发动机进气口噪声的计算机模拟仿真结果表明,本文提出的进气系统声学元件设计方法具有工程实用价值。主题词:发动机 进气系统 声学元件 设计 Study of Design Method of Acoustic Components of Engines Intake SystemsYue Guiping,Lu Bingwu, Liu Yingjie, Liu Yang(China FAW Group Corporation R&D Center)【Abstract】An engine model is established by using G

15、T-Power software, and insert loss of the intake system is analyzed, thus three maximum values of insert loss are founded. Combining the computation results of insert loss and taking advantage of the developed design expert system of intake system acoustic components central frequency, and taking ful

16、l account of the influencing parameters of transmission loss of acoustic components, resonant cavity, air filter and 1/4 wave length tube are designed. The computer simulation of noise at engine outlet indicates that the design method of the intake systems acoustic components is useful in actual eng

17、ineering practice.Key Words: Engine Intake system Acoustic components Design轿车乘坐室轰鸣声的分析与控制研究赵静 周鋐 梁映珍(同济大学)【摘要】根据轰鸣声产生的机理,分析了某型轿车乘坐室内轰鸣声的特性、发动机隔振特性、乘坐室各壁板的振动特性以及顶棚模态试验和空腔声学模态,明确了该轰鸣声主要是由发动机二阶振动通过悬置传递到车身,并激励乘坐室顶棚结构振动和空腔声学模态耦合所致。提出了采用加强顶棚刚度来改变顶棚结构振动的固有频率并抑制其振幅的方法,以此削弱耦合作用。试验结果表明,该方法可有效控制轰鸣声。主题词: 轿车 乘坐

18、室 轰鸣声 控制Analysis and Control Research of Booming Noise in Cars Passenger CompartmentZhao Jing, Zhou Hong, Liang Yingzhen(Tongji University)【Abstract】This paper analyzed the property of a cars booming noise, features of engine vibration isolation, vibration property of wall panel inside the passenger

19、 compartment as well as roof modal test and the cavity acoustic modal in accordance with the mechanism of booming noise, it was discovered the booming noise is produced mainly by engine second-order vibration which is transferred from suspension to vehicle body and excites roof vibration coupled wit

20、h cavity acoustic mode. It was proposed to enhance the stiffness of roof in order to modify the natural frequency of roof vibration and to restrain the amplitude of roof vibration, thus weakening the effect of coupling. It was validated to be effective to control booming noise through experiment.Key

21、 words: Passenger car; passenger compartment; booming noise; control概念设计中梁截面对车身刚度影响的研究邢子敬1 侯文彬1 刘斌2 张雨2 胡平1(1.大连理工大学;2.中国第一汽车集团公司技术中心)【摘要】利用NX建立了全参数化的概念车身模型,通过改变梁截面的方向和厚度以改变截面特性,研究了车身概念设计中梁截面对车身刚度的影响。利用HyperMesh计算了车身详细模型中门槛侧梁的灵敏度,与在概念车车身模型中求得的灵敏度进行比较,结果证明在概念设计阶段研究梁截面对车身刚度的影响可行。对门槛侧梁截面的厚度和形状进行了优化设计,减

22、轻了概念车车身的质量。 主题词:概念设计 车身刚度 梁截面 形状优化The Study of Effect of Beam Section to Auto Body Stiffness in Conception DesignXing Zijing1,Hou Wenbin1,Liu Bin2,Zhang Yu2,Hu Ping1(1. Dalian University of Technology; 2. China FAW Group Corporation R&D Center)【Abstract】A fully-parameterized concept body model is es

23、tablished with NX; by changing beam section direction and thickness to change section characteristic, the effect of beam section on body stiffness in body concept design is studied. Utilize HyperMesh to calculate the sensitivity of doorsill side beam in the detailed body model and compare it with se

24、nsitivity obtained in the concept body model, the result of comparison proves that study of effect of beam section on body stiffness in the concept design phase is feasible. Thickness and shape of doorsill side beam section is optimized, through which mass of the concept body is reduced.Key words: C

25、oncept design; body stiffness; beam section; shape optimization汽车ABS自适应模糊滑模控制算法研究张向文1 王飞跃2(1.桂林电子科技大学;2.中国科学院 复杂系统与智能科学重点实验室)【摘要】基于纵向附着系数-滑移率曲线特性,设计了可进行最佳滑移率估计和校正的自适应调节器,并根据滑移率跟踪最佳滑移率的误差,设计了可进行滑模参数自适应调节的模糊逻辑调节器。利用Simulink建立了ABS的自适应模糊滑模控制器模型和自适应滑模控制器模型,分别对单一路面和不同路面进行了仿真和比较研究,结果显示所提出的汽车ABS自适应模糊滑模控制算法可

26、行,并且利用自适应模糊滑模控制器的ABS纵向附着系数利用率更高、稳定性更好、制动时间和制动距离更短。关键词:ABS 模糊滑模控制 滑移率Studies on Adaptive Fuzzy Sliding Mode Control Algorithm for the Vehicle ABSZhang Xiangwen1, Wang Feiyue2(1. Guilin University of Electronic Technology; 2.Key Laboratory of Complex Systems and Intelligence Science, Chinese Academy o

27、f Sciences)【Abstract】An adaptive regulator is designed to estimate the optimal slip ratio and correction based on the longitudinal adhesion coefficient-slip ratio curve characteristics, and a fuzzy logic controller is designed to adjust the sliding mode parameters according to the slip ratio trackin

28、g error between the optimal slip ratio and the actual slip ratio. The models of the adaptive fuzzy sliding mode controller and adaptive sliding mode controller for the vehicle ABS are established respectively with the Simulink Toolbox. By simulation and comparison with the two controllers on the sin

29、gle road condition and different road conditions, the results indicate that the adaptive fuzzy sliding mode control algorithm for the vehicle ABS is feasible, and the adaptive fuzzy sliding mode controller has higher adhesion coefficient utilization, better stability, shorter braking time and brakin

30、g distance.Key words: ABS; fuzzy sliding mode control; slip ratio屏蔽层对汽车CAN总线抗干扰能力影响的研究*李玉龙 王丽芳 廖承林 吴振军(中国科学院)【摘要】分析了屏蔽双绞线和非屏蔽双绞线感性和容性耦合机理。根据ISO76373标准搭建了系统测试平台,通过试验对比分析了屏蔽层存在与否和不同接地方式对汽车CAN总线抗干扰能力的影响,研究了错误帧的产生原因及与负载率的关系。试验结果表明,当屏蔽双绞线的屏蔽层不接地时,其传输信号的抗干扰能力和非屏蔽双绞线基本相同;屏蔽层入端接地和两端接地抗干扰能力略好于出端接地抗干扰能力。主题词:C

31、AN总线 屏蔽层 抗干扰能力Research on Anti-interference Ability of Shielding Layer on Vehicle CAN BusLi Yulong, Wang Lifang, Liao Chenglin, Wu Zhenjun(Chinese Academy of Sciences)【Abstract】The coupling mechanism of UTP (Unshielded Twisted Pair) and FTP (Shielded Foil Twisted-Pair) is analyzed in the paper. Esta

32、blished the system test platform according to ISO7637-3 standard, and analyzed the influence of the existence of shielding layer and different grounding method on the anti-interference ability of vehicle CAN bus by test and comparison. The cause of wrong frame and its relationship with load ratio is

33、 analyzed. The test results indicate that when the shielding layer of the shielded twisted pair is not grounded, its anti-interference ability of the transmitted signal is basically identical with that of unshielded twisted pair. Whereas the anti-interference ability of the input grounding of the sh

34、ielding layer and grounding on both sides is slightly better than that of the output grounding.Key words: CAN bus, Shielding layer Anti-interference Ability液力缓速器内流场三维瞬态数值模拟及特性预测李雪松1 程秀生 1 刘中华2 刘春宝1(1.吉林大学;2.中国第一汽车集团公司技术中心)【摘要】采用滑动网格理论,将液力缓速器定子和转子之间的接合面定义为网格分界面来传递不同子域间的流动参数。采用标准k-模型及SIMPLEC算法,利用FLUEN

35、T软件对全充液工况液力缓速器的内流场进行了三维瞬态数值模拟,得到了液力缓速器内流场的速度、压力分布特性。基于流场数值解计算了制动扭矩,其结果与试验结果吻合很好,验证了流场计算方法的正确性。关键词:液力缓速器 瞬态流场 数值模拟 特性预测3D Transient Numerical Simulation on Internal Flow Field of A Hydraulic Retarder and Characteristics PredictionLi Xuesong1,Cheng Xiusheng1,Liu Zhonghua1,Liu Chunbao1(1. Jilin Univers

36、ity; 2. China FAW Group Corporation R&D Center, China)【Abstract】Based on sliding mesh theory, the joint surface between the rotor and stator of the hydraulic retarder was defined as grid-interface to transfer the flow parameters of different subdomains. Three-dimensional transient numerical simulati

37、on of single-phase turbulence flow in the hydraulic retarder was performed by using the standard k- turbulence model and the SIMPLEC algorithm simultaneously. The internal characteristics of velocity and pressure distribution were analyzed. The braking torque was also calculated based on flow field

38、simulation, and it is found out that the simulation results agree approximately with the experimental results, accuracy of the flow field calculation method is thus validated.Key words: Hydraulic retarder; Transient flow field; Numerical simulation; Characteristic prediction燃料电池轿车悬架匹配研究熊璐 余卓平 于增亮(同济

39、大学)【摘要】对装备燃料电池动力系统的轿车进行悬架匹配,通过改变弹簧刚度与长度使得在保证车辆平顺性的同时满足了对离地间隙的要求。基于ADAMS/CAR的悬架运动学与整车操纵稳定性分析结果显示,悬架匹配后该燃料电池轿车不足转向特性与角阶越输入的响应特性较原车削弱,操纵稳定性总体良好。关键词:燃料电池轿车,悬架,匹配,平顺性,操纵稳定性Investigation on the Suspension Matching of Fuel Cell CarXiong Lu, Yu Zhuoping, Yu Zengliang(Tongji University)【Abstract】The suspensi

40、on matching for a car powered by fuel cell power train has been done. By changing the stiffness and length of the spring, the ride comfort has been guaranteed and at the same time the requirement of ground clearance was satisfied. The analysis of suspension kinematics and whole vehicle handing and s

41、tability based on ADMAMS/CAR software indicates that under steering and step response characteristics of the fuel cell car after suspension matching is weaker than the original car. And the handing and stability of the fuel cell car is fairly good.Key words: Fuel cell car; Suspension; Matching; Ride

42、 comfort; Handing stability汽车电子点火模块检测系统的研制王启松1 李木天 1 赵永平1 朱奕2(1.哈尔滨工业大学;2.长春一汽富维八达电器有限责任公司)【摘要】采用基于PXI总线结构的虚拟测试系统开发了汽车电子点火模块自动检测系统,该系统具有数据及波形存储功能以及SPC统计分析功能,可在45s内完成对电子点火模块43项性能参数的在线检测。实际测试表明,该系统具有良好的电磁兼容特性,既可用于产品在线全检,也可用于对点火模块生产工艺的分析,具有测试效率高、功能齐全、运行稳定、实时性强、维护方便等特点。主题词:电子点火模块 PXI总线 自动检测系统Development

43、 on Test System of Automobile Electronic Ignition ModuleWang Qisong1, Li Mutian1, Zhao Yongping1, Zhu Yi2(1.Harbin University of Technology; 2.Changchun FAWAY Bada Electrics Co., Ltd.)【Abstract】 Based on the virtual test system of PXI bus, an automatic test system of automobile electronic ignition m

44、odule is developed in this paper, this system can store data and waveforms, analyze SPC statistic, complete online testing for 43 performance parameters of the ignition module in 45 seconds. The testing indicates that the system has strong anti-interference capability, can be used for online testing

45、 and technology analysis of ignition module, and has many features, such as high testing efficiency, complete function, stable operation, strong real time and ease of maintenance. Key words: Ignition module; PXI bus; Automatic testing system在用柴油公交车燃用生物柴油的试验研究胡志远1 谭丕强1 楼狄明1 黄家良2 刘得斌2 (1.同济大学;2.上海巴士一汽

46、公共交通有限公司)【摘要】对上海在用国柴油公交车燃用石化柴油废弃油脂制生物柴油混合燃料的经济性、动力性和排放性能进行了试验研究。试验结果表明,在用国柴油公交车燃用BD5的燃油经济性与柴油公交车基本相同,最大轮边功率降低约2%,加载减速法烟度平均降低约17%;燃用BD10的燃油经济性比柴油公交车略差,最大轮边功率降低约4%,加载减速法烟度平均降低约35%。主题词:柴油公交车,生物柴油,经济性,动力性,烟度Experimental Research of In-used Diesel Bus Fueled by BiodieselsHu Zhiyuan1, Tan Piqiang1,Lou Dim

47、ing1, Huang Jialiang2, Liu Debin2(1. Tongji University; 2. Shanghai No.1 Bus Company, Shanghai)【Abstract】 Experimental research on fuel economy, power, and emission performances of petro diesel a biodiesel blend made of waste grease used in China II diesel bus of Shanghai were carried out. The exper

48、imental result showed that fuel economy of BD5 fueled in-used bus is almost identical with that of conventional diesel bus, the maximum wheel power of BD5 reduces by about 2%, and its lug-down smoke emission reduced by about 17%. Moreover, the fuel economy of BD10 fueled in-used bus is slightly inferior to that of conventional diesel bus, the maximum wheel power o

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