液力缓速器恒速控制策略的仿真研究.doc

目 次液力缓速器恒速控制策略的仿真研究（摘要链接）1基于支持向量机的夹紧力控制阀质量分类（摘要链接）2基于神经网络PID控制的客车ECAS设计与实现（摘要链接）3后轮轮毂电机驱动电动汽车的液压复合制动系统匹配方法（摘要链接）4车身概念设计系统的开发及关键技术（摘要链接）5集成式电动汽车用车载充电器的研究（摘要链接）6车辆起步过程电磁离合器控制策略的研究（摘要链接）7基于汽车离合器综合性能要求的膜片弹簧优化设计（摘要链接）8基于复杂花纹的子午线轮胎径向刚度特性仿真（摘要链接）9基于台车试验方法的某微型轿车乘员约束系统改进设计（摘要链接）10ECAS客车车身高度调节建模及其控制研究（摘要链接）11柴油机NOx排放测量的不确定性研究（摘要链接）12ISO 362-1:2007在M1类车辆试验中的应用（摘要链接）13白车身薄板件焊接装配误差的研究（摘要链接）14液力缓速器恒速控制策略的仿真研究陆中华 程秀生（吉林大学）【摘要】简述了液力缓速器工作原理，并给出了所研究液力缓速器台架试验得到的转子转速与制动扭矩之间关系曲线。利用Matlab软件建立了车辆恒速下坡制动模型，通过仿真对比了控制周期、充液量初始值和每个控制周期内充液量变化值等参数对恒速控制效果的影响。根据液力缓速器控制参数的仿真结果，选定各参数最佳值进行了实车道路试验。结果表明，仿真得到的恒速控制策略应用到实际控制中是有效的。主题词：液力缓速器 恒速控制策略 仿真Simulation Research on Constant Speed Control Strategy of Hydraulic RetarderLu Zhonghua, Cheng Xiusheng（Jilin University）【Abstract】Operating principle of hydraulic retarder is briefed in the paper, and the relationship curve is given between rotor speed and braking torque obtained from bench test of the hydraulic retarder. A braking model of the vehicle driving downgrade with constant speed is established with Matlab software, and then the effect of parameters like control cycle, initial liquid charge and variation of liquid charge in each control cycle, etc. on constant speed control effect is analyzed with simulation. Road test is carried out with the optimal parameters selected in accordance with the simulation results of the control parameters of the hydraulic retarder. The test results show that the constant speed control strategy is effective in actual control operation.Key words: Hydraulic retarder；Constant speed control strategy；Simulation基于支持向量机的夹紧力控制阀质量分类高帅1 周云山2 安颖1 刘金刚2（1. 吉林大学；2. 湖南大学 汽车车身先进制造国家重点实验室）【摘要】提出了采用支持向量机对CVT夹紧力控制阀进行质量分类的方法，并设计了相应的提取夹紧力控制阀性能特征参数的试验方案与夹紧力控制阀SVM多类分类器。利用试验得到的性能参数对SVM分类器进行训练，然后分别使用训练成熟的SVM分类器与RBF神经网络分类器对夹紧力控制阀进行质量分类。结果表明，采用SVM分类器的分类准确率明显高于RBF神经网络分类器。主题词：CVT 支持向量机 夹紧力控制阀 质量Quality Classification of Clamping Force Control Valve based on Support Vector MachineGao Shuai1 Zhou Yunshan2 An Ying1 Liu Jingang2 (1. Jilin University; 2. State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Hunan University)【Abstract】A method of quality classification on CVT clamping force control valve with support vector machine (SVM) was proposed. Firstly corresponding test plan for feature parameters extraction from clamping force control valve and the clamping force control valve SVM multi-class classifier were designed. Secondly, based on the feature parameters acquired from test, the SVM classifier was trained to maturity. Lastly, clamping force control valves were classified based on quality with SVM classifier and RBF neural network classifier respectively. Results showed that the accuracy of SVM classifier was better than RBF neural network classifier.Key words: CVT; Support vector machine; Clamp force control valve; Quality基于神经网络PID控制的客车ECAS设计与实现全力 彭桂雪 彭彦松 常辉 徐兴 (江苏大学)【摘要】以飞思卡尔MC9S08GB60单片机为控制核心，以亚星YBL6891H型客车为试验对象，针对空气悬架系统本身的非线性特性，采用神经PID控制算法，设计了一种通过检测车身高度对空气弹簧进行充排气,进而改变弹簧刚度的客车电控空气悬架系统。根据悬架评价指标建立了电控悬架的2自由度1/4车辆模型，通过仿真验证了该悬架系统对悬架动行程、车轮动载荷及车身垂直加速度这3项汽车行驶平顺性评价指标的改善，最后通过试验验证了所设计控制策略的正确性。关键词：大型客车；行驶平顺性；电控空气悬架；神经网络PID控制Design and Realization of Passenger Bus ECAS based on Neural Network PID ControlQuan Li, Peng Guixue, Peng Yansong, Chang Hui, Xu Xing (Jiangsu University)【Abstract】An electronically controlled air suspension system (ECAS) for passenger bus was designed in which air spring is inflated and deflated according to body height detected and spring stiffness is thus changed with neutral PID control algorithm specific to nonlinear characteristic of air suspension system, with Yaxing YBL6891H bus as test object and Freescale MC9S08GB60 single chip as control core. Two degrees of freedom 1/4 vehicle model for electronically control suspension was established in accordance with suspension assessment index, improvement achieved in three vehicle riding comfort assessment index, namely suspension dynamic travel, wheel dynamic load and vehicle vertical acceleration by this suspension system was verified by simulation, finally correctness of the designed control strategy was validated by test.Key words: Large sized bus; riding comfort; electronically controlled air suspension; neural network PID control后轮轮毂电机驱动电动汽车的液压复合制动系统匹配方法宁国宝 王阳 余卓平（同济大学）【摘要】根据某电动汽车的总体设计要求，提出了该类型电动汽车的液压复合制动系统前、后制动力分配和匹配原则，分析了后轮轮毂电机特性对液压复合制动系统设计的影响。以满足理想制动力分配为目标，利用非线性最小二乘法优化方法对该液压复合制动系统前、后制动力分配和匹配进行了优化设计，并在不同循环工况、整车质量及电机外特性情况下评估了优化结果。关键词：电动汽车 轮毂电机 液压复合制动系统 优化设计Adaption Method of Electro-hydraulic Brake System for Electric Vehicle driven by Rear in-wheel MotorNing Guobao, Wang Yang, Yu Zhuoping(Tongji University)【Abstract】Distribution of braking force as well as rule of distribution of the front and rear wheels in the electro-hydraulic brake system for this type of EV is presented in the paper according to general design specification of an electric vehicle, the effect of rear in-wheel motor characteristic on the design of electro-hydraulic brake system is analyzed. Optimal design is made to the distribution of braking force and adaption to this electro-hydraulic braking system with nonlinear least square optimization method with satisfying ideal braking force distribution as design target, the effect of optimization is also evaluated at different cycle conditions, gross weight and motor external characteristic.Key words: Electric vehicle; in-wheel motor; electro-hydraulic brake system; optimization design车身概念设计系统的开发及关键技术迟瑞丰1 胡平2 侯文彬3(.吉林大学；2.大连理工大学 工业装备结构分析国家重点实验室；3.大连理工大学)【摘要】介绍了一种全新的车身结构概念设计系统的特点以及设计流程，阐述了该系统采用的关键技术，如设计向导用户界面、知识熔接技术、电子表格技术等。利用该系统对某款轿车进行了刚度与模态分析，通过与详细设计结果的对比可知，结果基本符合概念设计要求。利用该系统对该轿车进行了优化，证明了系统的有效性及可靠性。关键词: 车身；概念设计系统；二次开发Development and Key Techniques of Automotive Body Concept Design SystemChi Ruifeng1，Hu Ping2，Hou Wenbin3(1. Jilin University; 2.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology; 3. Dalian University of Technology)【Abstract】Characteristic of a brand new body structure concept design system and design flow are introduced in the paper, key techniques applied in the system are outlined, e.g. designing wizard user interface, knowledge welding technology, Excel technology, etc.Stiffness and modal analysis of a car is made with this system. It is concluded from comparison with detailed design results that the result basically meets the concept design requirement. After optimization of the car with the system, validity and reliability of the design system are verified.Key words: Vehicle body; Concept design system; Secondary development集成式电动汽车用车载充电器的研究熊云1钟再敏1 孙泽昌1牛宇航2(1.同济大学；2.上海燃料电池汽车动力系统有限公司)【摘要】论述了一种应用于电动汽车的集成式多功能车载充电器的开发与应用背景，介绍了该款充电器的主电路结构、工作原理和主要特点，并应用计算机仿真技术对产品设计进行了检验与优化。对样机进行了功能与性能测试试验，结果表明，该款充电器具备高效和运行稳定的特点，适合车载运行。关键词： 电动汽车 车载充电器 集成式Investigation on Integrated Onboard Charger for Electric VehicleXiong Yun1，Zhong Zaimin1, Sun Zechang1, Niu Yuhang2(1. Tongji University; 2.Shanghai Fuel Cell Vehicle Powertrain Co., Ltd)【Abstract】 Development and application of an integrated multi-functional onboard charger for electric vehicle is discussed in the paper on main circuit structure, operating principle and the main characteristics. The product design is verified and optimized with computer simulation technology. Finally prototype functional and performance test are carried out. The results show that the charger operates efficiently and stably, and suitable for onboard operation.Key words: Electric vehicle, Onboard charger, Integrated type车辆起步过程电磁离合器控制策略的研究 吴晓刚 王旭东 余腾伟 谢先平(哈尔滨理工大学)【摘要】针对自动变速车辆起步过程中电磁离合器接合的非线性控制问题，讨论了电磁离合器理想接合过程，分析了车辆起步过程冲击度与电磁离合器电流变化率的关系，提出了以油门开度及其变化率、发动机目标转速与实际转速、发动机最低接合转速、离合器输出轴转速为主要控制参数的离合器综合控制策略。仿真与试验结果表明，该控制策略能够很好地适应起步意图，使车辆在各种工况下均能平稳迅速起步。主题词：电磁离合器 车辆起步 控制策略Investigation on Control Strategy of Electromagnetic Clutch while Vehicle StartsWu Xiaogang Wang Xudong Yu Tengwei Xie Xianping(Harbin University of Science and Technology)【Abstract】To address the nonlinearity of engagement of the electromagnetic clutch while vehicle with AT starts, the ideal engagement process is discussed, and the relationship between the impact hardness and current slew rate of the electromagnetic clutch is analyzed, then the comprehensive control strategy is proposed with the main control parameters as follows: throttle opening and its change rate, the target and practical speed of the engine, the minimum engagement rotation speed and output shaft rotation speed of the clutch. Both simulation and test results show that, the control strategy can well cooperate with driver when he starts the vehicle, and the vehicle may start steadily under any condition.Key words: Electromagnetic clutch; Starting; Control strategy基于汽车离合器综合性能要求的膜片弹簧优化设计付铁军1 谢飞1 李贺2（1.吉林大学；2. 法雷奥照明湖北技术中心有限公司）【摘要】针对膜片弹簧的弹性特性与结构特点，对国内已有膜片弹簧数学模型进行分析，提出了以离合器膜片弹簧理想的综合性能要求作为目标函数的方法，并在此基础上建立了全新的数学模型。通过理论性能和试验验证的对比分析，证实了在新模型下得到的膜片弹簧综合性能较以往的设计方案有很大的提高。主题词： 离合器 膜片弹簧 数学模型 分析Optimum Design of Diaphragm Spring based on Comprehensive Performance Requirement of Auto ClutchFu Tiejun, Xie Fei, Li He(1. Jilin University; 2. Valeo Lighting Systems Hubei Technical Center Co., Ltd)【Abstract】Mathematic model of the existing domestic diaphragm spring is analyzed based on elastic properties and structural characteristics of diaphragm spring. It is proposed in the paper to take the ideal comprehensive performance requirements of clutch diaphragm spring as the objective function. On this basis, a brand new mathematical model is established. By comparison and analysis of theoretical study and test verification, it is confirmed that performance of the diaphragm spring obtained from the new models improves greatly compared with the previous designs.Key words: Clutch Diaphragm spring Mathematical model Analysis基于复杂花纹的子午线轮胎径向刚度特性仿真藏孟炎 应卓凡 周涛 秦滔（1.华南理工大学；2.广州市华南橡胶轮胎有限公司）【摘要】基于MSC.Marc非线性有限元分析软件，建立了具有复杂胎面花纹的175/65R14型子午线轮胎三维有限元模型。利用Rebar单元模型模拟橡胶-帘线复合材料，采用Yeoh模型模拟超弹性橡胶材料，仿真分析轮胎从轮辋安装、充气到施加垂向载荷全过程的情况，得到轮胎在不同胎压下的径向刚度特性。通过与试验结果的对比，验证了仿真分析的正确性。主题词：子午线轮胎 刚度特性 有限元Characteristic Simulation of Radial Stiffness of Radial Tire based on Complex TreadZang Mengyan, Ying Zhuofan, Zhou Tao, Qin Tao(1. South China University of Technology; 2. Guangzhou Huanan Tire Co., Ltd)【Abstract】A Three-dimensional FE model of 175/65R14 radial tire with complex tread pattern is established with nonlinear FE analysis software MSC.Marc. Rubber-cord compound material and super-elastic rubber material are simulated with Rebar model and Yeoh model respectively to simulate the whole process from tire rim mounting, charging to vertical application of load, the radial stiffness characteristic of tire under different pressure is thus acquired. The comparison with test results verifies correctness of the simulative analysis.Key words: Radial tire, Stiffness characteristic, FE基于台车试验方法的某微型轿车乘员约束系统改进设计王灿军 管迪（奇瑞汽车股份有限公司）【摘要】在试验基础上对某微型轿车无气囊条件下的约束系统进行优化，分析了座椅、转向盘和安全带的动态特性，提出了减小乘员伤害值的改进方案。通过台车试验证明，该微型轿车正面碰撞乘员保护达到中国法规要求，改进方案正确和有效；对于刚性很强的尺寸紧凑型微型轿车，弱化碰撞时头部接触位置的转向盘轮缘，并使用限力式安全带，可以有效降低正面碰撞头部加速度。关键词：微型轿车；乘员约束系统；台车试验；安全带Revised Design of Occupant Restrain System for Mini Car based on Sled Test Wang Canjun Guan Di (Chery Automobile Co., LTD)【Abstract】Based on crash test data, the performance of occupant restrain system for a mini car without airbag was optimized. By analyzing the dynamic properties of seat, steering wheel and seat belt, a method to reduce injury of occupants is proposed. The sled test results indicate that the occupant protection of this car satisfies the regulations on frontal crash in China, verifying correctness and validity of the revised concept. For mini car with compact dimensions and high stiffness, the steering wheel rim at which the head is impacted during crash is weakened, and a force-limiting seat belt is used to effectively reduce head acceleration during frontal crash.Key words: Mini car; Occupant restrain system; Sled test; Crash test; Seat beltECAS客车车身高度调节建模及其控制研究徐 兴 陈照章 李仲兴 黄俊明 周孔亢(江苏大学)【摘要】研究了电控空气悬架(ECAS)充放气的过程，结合变质量充放气系统的热力学和车辆动力学理论，推导出空气悬架客车车身高度调节的数学模型；分析了高度切换中的“过充”、“过放”及振荡现象，提出了变速积分的PID/PWM高度控制策略并进行了模拟仿真。半实物台架试验验证表明，所设计控制系统能够满足高度调节要求。主题词：客车 车身 电控空气悬架 高度控制 变速积分Investigation on Modeling and Control of Body Height Adjustment for Bus with Electrically Controlled Air SuspensionXu Xing, Chen Zhaozhang, Li Zhongxing, Huang Junming, Zhou Kongkang(Jiangsu University)【Abstract】The charging & discharging process of the electrically controlled air suspension (ECAS) was studied, and a mathematical model of body height modulation was derived for bus by combining theories of thermodynamics of variable-mass charging/discharging system and vehicle dynamics. The problems of “over-charging”, “over-discharging” and oscillation during height switchover were analyzed, and a height control strategy of variable integrator PID/PWM was proposed and simulated. Finally the semi-physical rig testing proves that the designed control system satisfies the requirement of height modulation.Key words: Bus, Body, Electrically controlled air suspension, Height control, Variable-integrator柴油机NOx排放测量的不确定性研究冀树德 张晖 许世永 刘亚君（中国北方发动机研究所）【摘要】介绍了不确定度的评定步骤，分析了影响NOx比排放量的因素，导出了NOx比排放量不确定度的传播率。分别采用A类、B类评定方法对各影响因素的不确定性进行了计算评价，最终得到了NOx比排放量不确定度。分析了各输入量对发动机功率和NOx质量流量的影响程度，为提高NOx排放的测量的准确性提供了改进方向。主题词：柴油机 NOx 不确定度 The Study of Uncertainty of NOx Emission for Diesel EngineJi Shude, Zhang Hui, Xu Shiyong, Liu Yajun(China North Engine Institute)【Abstract】The evaluation procedure of uncertainty was introduced in the paper, the factors influencing NOx specific emission were analyzed, and the uncertainty transfer ratio of NOx emission specific emission was deduced. The uncertainty of those influencing factors was calculated and evaluated with evaluation method A and evaluation method B respectively, and finally the uncertainty of NOx specific emission was acquired. In addition, the influences of input parameters on engine power and NOx mass flow were analyzed, providing method of improving accuracy of NOx emission measurement.Key Words: Diesel engine, NOx; UncertaintyISO 362-1:2007在M1类车辆试验中的应用谢东明 邱彬 刘建军 靳旗 张辉（中国汽车技术研究中心）【摘要】阐述了M1类车辆依据ISO362-1:2007道路车辆加速行驶噪声测量工程法的试验过程及数据处理方法，并结合实例进行验证。阐述了目标加速度值和参考加速度值的内涵。针对测试过程中存在的挡位初步选择、入线速度及预加速距离估算等技术难点，提出了一种实用方法：在噪声测试前采用速度、加速度、位移数据采集设备及触发装置对样车进行加速试验，通过对车辆加速特性进行分析，即可快速解决上述技术问题。主题词：加速噪声 挡位选择 预加速距离 加权系数Application of ISO 362-1:2007 in Test for M1 Category VehicleXie Dongming, Qiu Bin, Liu Jianjun , Jin Qi, Zhang Hui(China Automotive Technology & Research Center)【Abstract】The test process and data processing method of Category M1 vehicle in accordance with ISO362-1: 2007 Measurement of noise emitted by accelerating road vehicles-Engineering method is introduced and verified with example