EPS 中更精确的电机转速估计方法研究

1、目 次EPS中更精确的电机转速估计方法研究（摘要链接）1车用空气滤清器减声量优化研究（摘要链接）2汽油机进气系统噪声仿真技术研究（摘要链接）3缸内直喷汽油机的喷雾模拟（接续）（摘要链接）4传递路径分析用于车内噪声贡献量的研究（摘要链接）5加速工况下车内噪声品质烦躁度的评价研究（摘要链接）6六速双离合器自动变速器开发（摘要链接）7浅析轮胎偏磨与车架尺寸控制（摘要链接）8装配SCR系统的混合动力公交车排放特征研究（摘要链接）9汽车ABS参考车速的确定方法（摘要链接）10微型汽车排气消声器的设计与优化（摘要链接）11一种新型汽车馈能减振器的结构设计与特性分析（摘要链接）12驻车加热器燃用3种燃料的燃

2、烧性能试验研究（摘要链接）13干式DCT轿车离合器操纵系统仿真与试验（摘要链接）14发动机用高性能复合密封垫片研制开发（摘要链接）15车身构件冲压后板厚变化对其疲劳性能影响的研究（摘要链接）16EPS中更精确的电机转速估计方法研究吕威 郭孔辉 张建伟(吉林大学 汽车动态模拟国家重点实验室)【摘要】电动助力转向系统中需要用到准确的助力电机转速信号，因此本文提出一种变内阻变反电动势系数的助力电机转速估计方法。通过测试直流电机内阻和反电动势系数随电机电流的变化曲线，从而得到电机转速更精确的估计表达式。通过对比试验验证可知，本文提出的电机转速估计方法能够显著提高估计精度。关键词：电动助力转向系统 转速

3、 估算 试验Study on A More Accurate Method of EPS Motor Augular-Velocity EstimationLv Wei, Guo Konghui, Zhang Jianwei(State Key Laboratory of Automobile Dynamic Simulation, Jilin University)【Abstract】Accurate boost motor speed signal is needed in electric power steering system. This paper presents a

4、 motor augular velocity estimation method based on variable resistance and variable back-EMF coefficient. A more accurate estimate expression is obtained by testing the curve of DC motor internal resistance and back-EMF coefficient which changes with the motor current. By comparing the experimental

5、result, the motor augular velocity estimation method this paper presents can significantly improve the estimation accuracy.Key words: Electric power steering system; speed; estimation; test车用空气滤清器减声量优化研究封珺 周鋐 王二兵（同济大学）【摘要】针对某车用空气滤清器分别设计了导流管、1/4波长管和穿孔板结构，并以减声量为评价指标对各种措施的应用效果进行了分析。结果表明，在原空气滤清器上增加3种消声措

6、施后，在保持原空气滤清器宽频带较高消声效果的同时，有效提高了频率在295Hz、620Hz和750Hz下的减声量；改进后空气滤清器的整体减声量为87dB，比原型提高14dB，对空气滤清器的结构改进达到了较为满意的效果。主题词：空气滤清器 减声量 消声结构Optimization Study of the Noise Reduction of Vehicle Air CleanerFeng Jun, Zhou Hong, Wang Erbing(Tongji University)【Abstract】The inflow conduit, 1/4 wave pipe and perforated

7、plate structure are designed separately for an automotive air cleaner, and the effect of different designs in noise reduction is analyzed. The results show that, with three noise reduction measures applied to the original air cleaner, the noise reduction effect is improved effectively at the frequen

8、cy of 295Hz, 620Hz and 750Hz while maintaining the high noise reduction at wide frequency band of the original air cleaner; a total of 87dB noise is eliminated with the modified air cleaner, exceeding the previous design by 14dB and a satisfying result is obtained by the structure redesign.Key words

9、: Air cleaner; Noise reduction; Silencing structure汽油机进气系统噪声仿真技术研究岳贵平 卢炳武 刘英杰 刘杨（中国第一汽车集团公司技术中心）【摘要】基于非线性平面波理论和流阻分析技术，建立了汽油机进气系统噪声仿真平台，并进行了某汽油机匹配原进气系统管口噪声和流阻计算，计算结果与试验结果的对比表明该进气系统噪声仿真方法可行。针对某微型车更换动力总成后车内噪声没有达到目标样车水平的问题，提出了2种空气滤清器改进方案，并分别进行了2种方案的进气系统管口噪声仿真计算。结果表明，方案2最优，其不仅能降低某些转速的峰值噪声，还能保证车辆的动力性。主题词：

10、汽油机 进气系统 噪声 仿真 The Study on Simulation Technology of Noise of Intake Systems of Gasoline EnginesYue Guiping，Lu Bingwu, Liu Yingjie, Liu Yang(China FAW Group Corporation R&D Center)【Abstract】Based on the theory of nonlinear plane-wave and the technology of flow-resistance analysis, an acoustic si

11、mulation platform of gasoline engine intake systems of is built, noise and flow resistance of a gasoline engine equipped with the former intake system is calculated. The comparison between the calculation results and test results shows that this intake system noise simulation method is feasible. To

12、solve the problem of a mini vehicle with new powertrain in which interior noise fails to meet the level of target sample vehicle, two air filter solutions are presented, and intake system noise simulation calculation is carried out with the two solutions. The results show that solution 2 is the best

13、 one, which can not only reduce peak noise at some speed, but also guarantees vehicle dynamic property.Key words: Gasoline engine; intake systems; noise; simulation缸内直喷汽油机的喷雾模拟陈海娥 宫艳峰 李伟 李康 刘金玉 史艳彬 鞠花 曲美兰 李金成（中国第一汽车集团公司技术中心）【摘要】在定容弹内测量了某直列4缸均质缸内直喷汽油机不同时刻的喷雾油束形状和喷油器附近位置的喷雾液滴直径及速度分布，并在CFD模型中进行了喷雾的标定。分

14、析了原机缸内喷雾、混合情况，研究了喷雾锥角、喷孔布置对缸内混合气均匀性的影响，论述了在低转速、部分负荷时加进气翻板的作用。结果表明，调整喷雾锥角、喷孔布置方式可以改善直喷汽油机缸内空燃比分布的均匀性；采用进气翻板可以提高发动机低转速部分负荷时缸内的滚流比及紊流强度，从而改善缸内混合气质量及加快缸内燃烧速度。关键词：直喷汽油机 喷雾化模拟 喷雾锥角Spray Simulation of Gasoline Direct Injection EngineChen Haie; Gong Yanfeng; Li Wei; Li Kang; Liu Jinyu; Shi Yanbin; Ju Hua; Q

15、u Meilan; Li Jincheng(FAW Group Corporation R&D Center)【Abstract】The shape of spray and diameter and speed distribution of spray droplet around the injector of the in-line 4-cylinder homogeneous in-cylinder DI gasoline engine were measured, spray calibration was made in the CFD model. It was ind

16、icated that the adjustment of spray cone angle and spray hole layout could improve the equality of air-fuel ratio distribution, intake flap could increase the flow ratio and turbulent strength at low rotary speed and partial load, thus improved the quality of mixed gas and accelerated combustion spe

17、ed.Key words: Gasoline direct injection engine; Spray simulation; Spray cone angle传递路径分析用于车内噪声贡献量的研究佘琪 周鋐（同济大学）【摘要】论述了传递路径分析（TPA）的基本原理。建立了TPA模型，并通过在实际工况下的测量和计算，验证了该模型的正确性。基于该模型进行了某车车内噪声各条传递路径贡献量的分析。结果表明，排气管悬置4的Z向、发动机右悬置Z向及发动机左悬置Y向的贡献量最大，为主要的噪声传递路径。对车内噪声主要贡献量路径进行的频响函数与工作力的分析结果表明，在频率为26.7Hz时，排气管吊点Z向的贡

18、献量主要是由其工作力所引起的，即发动机2阶频率时的振动所产生的力；发动机悬置与发动机表面声辐射亦是如此。主题词：车辆内部噪声 传递路径分析 模型Study of Automotive Interior Noise Contribution by Using Transfer Path AnalysisShe Qi, Zhou Hong(Tongji University)【Abstract】The fundamental principle of Transfer Path Analysis (TPA) is described in this article and a TPA model

19、is established. With the measurement and calculation in the actual operating condition, the model is verified. Based on this model, the automotive interior noise transfer paths of a passenger car are analyzed. The results of analysis shows that Direction Z of exhaust mounting, Direction Z of right e

20、ngine mounting and Direction Y of left engine mounting have the greatest contribution, identifying them as the main transfer paths of automotive interior noise. The result of analysis on the frequency response function of the main transfer path of automotive interior noise and working force indicate

21、 that the contribution along Direction Z of exhaust pipe hanging point is mainly caused by its working force at frequency of 26.7Hz, in another word, the force caused by vibration of second-order frequency of engine; the same applies to engine mounting and sound radiation on the engine surface.Key W

22、ords: Automotive interior Noise; Transfer path analysis; Model加速工况下车内噪声品质烦躁度的评价研究梁 杰1 孙 强1 卢鹏宇1 卢炳武2 姜文君2 赵彤航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9种B级轿车从50120km/h加速时的噪声信号为评价对象，采用等级评分方法对车内噪声品质烦躁度进行了主观评价试验。分析计算了各噪声样本的主要心理声学客观参数，并通过相关分析和多元线性回归分析，建立了车内噪声品质烦躁度评价的数学模型。结果表明，在加速工况下影响B级轿车车内噪声品质烦躁度的3个参数

23、分别为响度、粗糙度和A计权声压级。主题词： 轿车 车内噪声 品质 评价 加速工况Research on Sound Quality Annoyance Evaluation for Vehicle Interior Noise during AccelerationLiang Jie1, Sun Qiang2, Lu Pengyu3, Lu Bing wu3, Jiang Wenjun3, Zhao Tonghang3（1.State Key Laboratory of Automobile Dynamic Simulation, Jilin University; 2. Jilin Univ

24、ersity; 3. China FAW Group Corporation R&D Center）【Abstract】The noise signals from nine types of B-Class car during acceleration from 50km/h to 120km/h were selected as the evaluation objects. The subjective evaluation test of interior noise quality annoyance was carried out with the magnitude e

25、stimation method. Several primary objective psycho-acoustical parameters of these samples were calculated. By way of correlation analysis and multi-dimensional linear regression analysis, a mathematical model of noise annoyance was developed. The research results indicated that the noise annoyance o

26、f B-Class car under acceleration condition is affected by three object parameters: loudness、roughness and sound pressure level A.Key words: Car; interior noise; quality; evaluation; acceleration condition六速双离合器自动变速器开发陈勇1 程秀生2 崔爱乐 冯巍2 陈宗帖¹ 范钰琢¹ 陈启云¹（1.浙江吉利汽车研究院有限公司； 2.吉林大学）【摘要】简述了某六速双离

27、合器自动变速器的机械传动系统结构，给出了该变速器最佳动力性换挡策略，并进行了NVH仿真分析。对所开发的液压阀体总成进行的试验表明，该阀体总成的挡位平均响应时间为30.6ms，比目前国外同类样品响应时间快。介绍了所开发的湿式双离合器结构并进行了双离合器总成试验。结果表明，双离合器1可进行精确地换挡控制；双离合器2虽然能进行换挡，但不易进行精确控制。主题词：双离合器式自动变速器 液压阀体总成 双离合器总成Development of Six-speed Dual Clutch TransmissionChen Yong¹, Cheng Xiusheng², Cui Aile&#

28、185;, Feng Wei², Chen Zongtie¹, Fan Yuzhuo¹, Chen Qiyun¹(1.Zhejiang Geely Automobile Institute Co., Ltd; 2. Jilin University)【Abstract】Structure of the mechanical transmission system of a six-speed dual clutch transmission is introduced in the paper, and the optimal shifting stra

29、tegy of this transmission is proposed, and NVH simulative analysis is carried out. The test with the hydraulic valve body assembly developed indicates that the mean shifting response time of this valve body assembly is 30.6ms, shorter than that of the similar product by foreign countries. DCT assemb

30、ly test with the wet type dual clutch structure is carried out, the test results show that dual clutch 1 can perform accurate shifting control; while dual clutch 2, although can perform shifting, however can not easily perform accurate control.Key words：Dual clutch transmission; Hydraulic valve body

31、; Dual clutch assembly浅析轮胎偏磨与车架尺寸控制张军学 赵兵 安彦泊 樊引红 王双（长城汽车股份有限公司）【摘要】通过对3台前轮内侧有偏磨现象的SUV汽车进行不同加载条件下的车轮跳动量测试和车轮定位参数变化的测试发现，前轮前束随车轮上跳过程变成负值，且明显偏离标准范围。通过结构分析、理论计算与实测值对比可知，车辆在负载行驶时前束值偏离是造成轮胎内侧偏磨的主要原因。可采用降低转向臂与转向拉杆下安装平面的临时措施改进；永久性改进措施为严格控制该尺寸且将纵梁定位由原来的外形定位改为侧面定位孔定位。关键词：轮胎 偏磨 车架 尺寸控制Brief Analysis of Tire E

32、ccentric Wear and Frame Size Control Zhang Junxue, Zhao Bing, An Yanbo, Fan Yin-hong, Wang Shuang(Great Wall Motor Co., Ltd)【Abstract】By testing wheel jumpout and wheel alignment parameter variation under different loading conditions of three SUVs with eccentric wear in the interior of front wheel,

33、it is found that front wheel toe-in becomes a negative value with the jump process of wheel and deviates obviously from standard range. It is known through structural analysis, theoretical calculation and measured values that toe-in deviation when the vehicle is driven with load is the main cause to

34、 cause eccentric wear of the tires. A temporary improvement measure is to lower the mounting plane beneath the steering arm and tie rod; the permanent improvement measure is to strictly control this size.Key words: Tire; Eccentric wear; Frame; Size control装配SCR系统的混合动力公交车排放特征研究李孟良1 聂彦鑫2(1.中国汽车技术研究中心;

35、2.武汉理工大学)【摘要】利用车载测试系统，对两种类型的混合动力公交车进行了整车排放测试，研究了装备SCR系统的国混合动力公交车排放情况，结果表明，SCR技术的应用能一定程度上降低NOx排放量，但同时SCR技术在混合动力公交车上实际应用时存在排气温度过低、从而导致NOx转化率偏低的问题。建议采用某种技术（如排气加热系统）提高城市公交车排气温度或提高SCR的低温性能，以便提高NOx转化效率。主题词：混合动力公交车 SCR 排放 排气温度Study on the Emission Properties of Hybrid Electrical Transit Bus with SCR System

36、Li Mengliang1, Nie Yanxin2(1.China Automotive Technology & Research Center; 2. Wuhan University of Technology)【Abstract】The vehicle emission test on two different types of hybrid electrical transit buses (HEB) was conducted, using on-board test system. Emission of State HEB with SCR was studied.

37、 The result showed that the use of SCR technology could reduce NOx emissions to a certain extent. However, SCR technology application in HEB also faces with low NOx conversion efficiency caused low exhaust temperature. It was suggested that some technology should be adopted to raise HEB exhaust temp

38、erature (for example the exhaust heating system) or improve the low temperature performance of SCR in order to improve the NOx conversion efficiency.Key words: Hybrid electrical transit buses (HEB); SCR emission; exhaust temperature汽车ABS参考车速的确定方法郑太雄1 单荣明1 蒋国英2 杨勇2（1.重庆邮电大学； 2.重庆卡福汽车零部件有限责任公司）【摘要】系统中

39、参分析了汽车防抱死制动系统中参考车速的多种确定方法。在分析了各种方法优、缺点的基础上提出了一种综合法，并利用该方法进行了首次制动循环和常规制动循环参考车速的计算。道路试验结果表明，采用该综合法确定的参考车速与车速仪测得的实际车速之间的偏差最大值为4.53km/h，均差为0.35km/h，从而验证了采用该综合法确定汽车防抱死制动考车速的准确性。主题词：ABS 滑移率 参考车速 The Method to Determine Automotive ABS Reference SpeedZheng Taixiong1, Shan Rongming1, Jiang Guoying2, Yang Yon

40、g2(1. Chongqing University of Posts and Telecommunications; 2.Chongqing CAFF Automotive Braking & Steering Systems Co., Ltd)【Abstract】Many methods to determine reference speed of automotive ABS system is analyzed in the paper, in which a comprehensive method is proposed based on advantages and d

41、isadvantages of these methods, and this method is used in calculation of automotive reference speed in the initial braking cycle and conventional braking cycles. The results of road test indicate that the greatest deviation between the reference speed obtained with this comprehensive method and the

42、actual vehicle speed measured with tachograph is 4.53km/h, with mean deviation of 0.35km/h, verifying accuracy of reference speed of ABS system obtained with this comprehensive method.Key words: ABS, Slip ratio, Reference speed微型汽车排气消声器的设计与优化刘志恩1 颜伏伍1 杨伦1 黄恒2(1. 武汉理工大学； 2. 柳州利和排气控制有限公司) 【摘要】建立了某发动机工

43、作过程模型和排气消声器性能评价模型，并进行了该排气消声器声学性能和空气动力性的仿真分析。采用仿真分析和试验验证相结合的方法，通过调节各腔室容积和隔板的穿孔率对该排气消声器进行了改进。改进后排气消声器的试验结果表明，消声器总体噪声值和阶次噪声值均有明显好转，高速噪声值比较高的状况得到改善，消声器性能基本达到设计要求。主题词： 排气消声器 性能 优化设计Design and Optimization for Muffler of Minibus Liu Zhien1, Yan Fu Wu1,Yang Lun1, Huang Heng2(1 Wuhan University of Technolog

44、y; 2 Liu Zhou Li He Exhaust System Control Co., Ltd)【Abstract】An engine operating model and an exhaust muffler performance evaluation model are established, and acoustic performance and aerodynamic simulative analysis of the muffler is carried out. By combining simulative analysis and test verificat

45、ion, and adjusting chamber volume and perforated percentage of baffle, the muffler is improved. Test results of the improved muffler indicate that total noise level and order noise level of the muffler improved considerably, improvement is also made to the high velocity noise level, performance of t

46、he muffler basically satisfies design requirement.Key words: Exhaust muffler; Performance; Optimization design一种新型汽车馈能减振器的结构设计与特性分析王伟华1 李志成2 于长淼1（1. 吉林大学；2. 金龙联合汽车工业（苏州）有限公司）【摘要】简述了馈能减振器结构与工作原理及其主要零部件的选型方法。采用SIMULINK软件建立了馈能减振器模型，并进行了阻尼特性、示功特性和馈能特性分析。仿真结果表明，馈能减振器的阻尼系数可通过串联不同电阻值的负载而进行改变，阻值越小，阻尼系数越大；在相

47、同振幅不同频率的路面位移激励作用下，随着激励频率的增加，馈能减振器相对位移和最大阻尼力随之增大；减振器压缩速度越大，电机转速越快，输出电压越高。主题词：馈能减振器 结构设计 特性分析Structure Design and Characteristics Analysis of a New Type of Automotive Regenerative Shock AbsorberWang Weihua1, Li Zhicheng2, Yu Changmiao1(1. Jilin University;2. Higer Bus Company Limited (Suzhou)【Abstract

48、】Structure of energy regenerative shock absorber and the operating principle as well as selection method of main components are described briefly in the paper. An energy regenerative shock absorber model is developed with software SIMULINK, and damping characteristic, indication characteristic and r

49、egenerative characteristic analysis are carried out. The simulation results show that the damping coefficient of such shock absorber can be changed by linking in series load with different resistance value, the lower the resistance value, the higher the damping coefficient will be. Under the effect

50、of road displacement excitation with the same amplitude and different frequency, the relative displacement and the maximum damping force increase with the excitation frequency; the higher the shock absorber compression speed, the faster the motor rotates and the higher the output voltage will be.Key

51、 words: Regenerative shock absorber; structural design; characteristics analysis驻车加热器燃用3种燃料的燃烧性能试验研究玄哲浩1 黄 勇1 马纯强1 陈华艳2（1.吉林大学；2.中国人民解放军装备指挥技术学院）【摘要】针对乙醇、汽油、汽油和乙醇混合物（E50）等3种燃料，在某驻车加热器上进行了燃烧特性试验，研究3种燃料在燃烧器内稳定燃烧时各参数的变化，分析了不同工况下燃烧器内的温度变化以及过量空气系数对燃烧温度的影响。试验结果表明，3种燃料在燃烧室内各点温度变化规律与额定工况下相同;汽油的燃烧温度随过量空气系数的增

52、大而减小，具有较好的燃烧性能；3种燃料的过量空气系数与风机电压基本成线性关系。主题词：驻车加热器 燃料种类 燃烧性能Experimental Study on Combustion Performance of Three Fuels on Parking HeaterXuan Zhehao1, Huang Yong1, Ma Chunqiang1, Chen Huayan2Jilin University; 2. The Academy of Equipment Command & Technology, PLA）【Abstract】Combustion characteristic

53、 test of three fuels (ethanol, gasoline and E50) in the parking heater is carried out, variations of temperature of the three fuels in the combustion chamber have been studied in this paper, then the influence of variation of combustion temperatures and excessive air factor on combustion temperature

54、 under different working condition have been analyzed. The test results show that the rule of temperature variation of the three types of fuels at different points in the combustion chamber is identical with that under nominal working conditions; combustion temperature of gasoline decreases with the

55、 increase of excessive air factor, and has fair good combustion performance; the excessive air factor of the three types of fuels has a linear relationship with blow voltage.Key words: Parking heater; Fuel type; Combustion Performance干式DCT轿车离合器操纵系统仿真与试验张建国1,2 雷雨龙1 宗长富1 刘洪波1 崔东伟3（1.吉林大学 汽车动态模拟国家重点实验室

56、；2.装甲兵技术学院；3. 中国第一汽车集团公司技术中心）【摘要】在Matlab/Simulink环境下建立了电动干式DCT轿车离合器操纵系统的仿真模型，并采用积分分离的PID控制算法对无刷直流驱动电机进行PID控制。在此基础上,对某型轿车进行了DCT系统的起步和换挡试验。结果表明，仿真结果与试验结果相符，验证了仿真模型的正确性，同时控制算法也满足系统控制要求，保证了DCT样车的平稳起步和换挡的平顺性。主题词：离合器 DCT 操纵系统 控制算法 Simulation Analysis and Experimental Studies on Clutch Operating System of

57、Dry DCT CarZhang Jianguo1,2, Lei Yulong1, Zong Changfu1，Liu Hongbo1，Cui Dongwei3(1.State Key Laboratory of Automobile Dynamic Simulation, Jilin University; 2. Department of Mechanical Engineering, Armor Technique Institute of PLA; 3. China FAW Group Corporation R&D Center)【Abstract】A clutch oper

58、ating system simulation model of car equipped with electrical dry DCT is established in Matlab/Simulink. PID control algorithm with integral separation is used in PID control to the brushless DC motors. On this basis, DCT system starting and shifting test of a passenger car is made. Test results show that the simulation results are identical with test result, verifying accuracy of the simulation model, meanwhile the con