1、新型混联式混合动力客车动力系统分析目 次 新型混联式混合动力客车动力系统分析王家明1 郭晋晟2 冒晓建2 钟虎2 卓斌2(1.上海大众汽车有限公司;2.上海交通大学)【摘要】分析了新型混联式混合动力客车动力系统的结构特点和总体布置,介绍了该系统的主要控制策略。根据汽车动力学原理,计算出了该混联式混合动力客车动力系统的基本参数,并分析了该方案在中国典型城市工况下的动力性能;建立了车辆的仿真模型,计算了车辆的动力性和经济性。仿真结果表明,采用该方案的车辆动力性较原车有一定程度提高,燃油经济性较原车有明显改善。主题词: 混合动力客车 混联式 动力总成 中图分类号:U469.72 文献标识码:A 文章
2、编号:10003703(2008)09000104 Analysis of a New Parallel-Series Hybrid Electric Buss Powertrain SystemWang Jiaming1,Guo Jinsheng2, Mao Xiaojian2, Zhong Hu2, Zhuo Bin2(1.Shanghai Volkswagen Co.,Ltd.;2.Shanghai Jiaotong University;)【Abstract】The structural characteristics and layout of a new parallel-seri
3、es hybrid electric vehicle were analyzed, and its main control strategies were introduced. Based on the vehicle dynamics theory, the basic parameters of powertrain system of the parallel-series hybrid electric vehicle were calculated, and the power performance under the working conditions of Chinese
4、 typical urban drive cycle were analyzed, then the simulation model was established and the power performance and fuel economy were calculated. The simulation results show that compared with the original bus, power performance and fuel economy have been improved considerably by using this new dynami
5、c system.Key words:Hybrid electric bus, Parallel-series, Powertrain柴油机燃用生物柴油的氮氧化物排放特性李博 楼狄明 谭丕强 胡志远 张斌(同济大学)【摘要】研究了某直喷式柴油机分别燃用5种不同生物柴油掺混比例的混合燃料时NOx排放以及NO、NO2、N2O等氮氧化物主要组分的排放特性。结果表明, NOx排放曲线形态较为接近,低负荷时差异较小,随负荷增加,其排放差异增大;NO排放随着负荷上升而增加; NO2排放在低负荷和高负荷均较低,中间负荷最高;N2O在低负荷时有一定生成量,中高负荷N2O排放几乎为零;随生物柴油掺混比例的提高,
6、NOx和NO排放增加幅度增大,NO2排放有所降低。主题词:柴油机 生物柴油 氮氧化物 排放特性 中图分类号:U464.172 文献标识码:A 文章编号:10003703(2008)09000504 Nitrogen Oxides Emission Characteristics of Biodiesel for Diesel EngineLi Bo, Lou Diming, Tan Piqiang, Hu Zhiyuan, Zhang Bin(Tongji University)【Abstract】Emission characteristic of main components of NO
7、, NO2 and N2O, etc. for a kind of direct injection diesel engine that is fuelled with five biofuels that blended with different mixing ratio is analyzed. The results show that the NOx emissions of different biodiesel blends shows no great differences, and as load increases, the differences become re
8、latively greater; whereas the NO emission increase as load increases, NO2 emission is comparatively low during low and high load, while it is highest during medium load; N2O is mainly generated during low load; while during mid and high load, it is approximately zero; as the blending proportion of b
9、iodiesel increases, the NOx and NO emission increase greatly, while NO2 emission decreases.Key words:Diesel engine, Biodiesel fuel, Nitrogen oxides, Emission characteristics电动助力转向系统的主动回正控制景立群 季学武(清华大学 汽车安全与节能国家重点实验室)【摘要】在EPS系统开发过程中发现,若不进行回正控制,安装EPS系统的汽车低速行驶时转向回正不足。通过对回正力矩的分析,探讨了安装EPS系统的汽车低速行驶时转向回正不足
10、的原因。通过对助力及回正行程中转矩信号变化规律的研究提出,以回正前保舵状态时的转矩作为回正的特征参数,确定主动回正所需要的电机电流及持续时间;以转矩信号从非零向零的转变作为判断回正状态的条件。实车试验结果表明,本方法明显改善了EPS系统的转向回正性能。主题词:EPS 主动回正 特征参数中图分类号:U463.4 文献标识码:A 文章编号:10003703(2008)09000904Active return-to-center control of an electric powered steering systemJing Liqun Ji Xuewu(State key laborator
11、y of safety and energy, Tsinghua University)【Abstract】In the development process of EPS system, it was found that the vehicle installing an electric powered steering system (EPS) without return-to-center control will not approach to neutral position automatically after steered when the car rides at
12、low speeds. The reason for the steering wheel not returning to center was discussed based on the analysis for returning moments. Then the power and torque signal change pattern during returning travel was studied. An active returning method was proposed in this paper, in which the holding torque bef
13、ore returning was used as the returning characteristic parameter to determine the motor current and its duration time, and the change of torque signal from nonzero to zero was used as criteria to determine the returning state. Finally, the proposed active returning method was verified on the vehicle
14、 and it was found that the method improved EPS return ability obviously.Key words: EPS, Active return, Characteristic parameter基于路面识别电液复合制动整车联合仿真张厚忠 陈辛波(同济大学)【摘要】针对四轮毂电机轮边驱动汽车具有各车轮电机制动力矩可快速准确获得、各车轮液压制动力矩与制动管路油压成线性关系的特点,开发出一种新的基于路面识别电液复合制动整车控制算法,并利用ADAMS和MATLAB分别建立了整车机械动力学模型和整车控制模型。整车联合仿真结果表明,该控制算法在对
15、开或对接路面上制动效果良好。 主题词:四轮毂电机轮边驱动汽车 电液复合制动 路面识别 联合仿真中图分类号:U463.5 文献标识码:A 文章编号:10003703(2008)09001304Combined Simulation of the Electronic-Hydraulic Compound Braking System Based on Road Identification Zhang Houzhong, Chen Xinbo(Tongji University)【Abstract】Aiming at those characteristics that every wheels
16、 electronic braking torque can be quickly and accurately gained and every wheels hydraulic braking torque is linear with hydraulic pressure on four in-wheel-motor driving vehicle, a new control algorithm of the electronic-hydraulic compound braking system based on road identification is developed, a
17、nd with ADAMS and MATLAB software, the automotive mechanical dynamic and control models are respectively constructed. The co-simulation results show that the control algorithm has good braking performance in split and opposite roads.Key words: Four in-wheel-motor driving vehicle,Electronic-hydraulic
18、 compound braking,Road identification,Combined simulation双质量飞轮四连杆-弹簧机构型扭振减振器弹性特性分析与优化设计李 伟1,2 史文库1 龙岩1(1.吉林大学;2.第一汽车集团公司技术中心)【摘要】推导出了一种新型双质量飞轮式扭振减振器四连杆-弹簧机构型扭振减振器的静态弹性特性和扭转刚度表达式,并对影响弹性特性的因素进行了分析。根据国内某款轿车的动力传动系统参数建立了典型工况下的多自由度扭振模型,对该传动系统进行了模态分析,并利用虚拟样机技术对设计参数进行了优化。通过对五挡下采用双质量飞轮式扭振减振器和传统离合器从动盘式扭振减振器的两
19、套整车动力传动系统在关键位置的角速度输出进行比较得知,前者比后者隔振效率提高近40%。主题词:双质量飞轮扭振减振器 四连杆-弹簧机构 弹性分析 优化设计The Elastic Characteristic Analysis and Optimization Design of the DMF-QS Torsional DamperLi Wei1,2, Shi Wenku1,Long Yan1(1. Jilin University;2. FAW Group Corporation R&D Center)【Abstract】In this paper, the formula of the st
20、atic elastic characteristic and torsional stiffness on a new type of DMF with Quadrangle-Spring(DMF-QS)torsional damper was built and the factors affecting elastic characteristic were analyzed. Based on the parameters of one domestic car driveline, a model with multi-freedom-degree in typical load c
21、ondition is establised,and modal analysis for the driveline was made, the design parameters were analyzed by applying virtual prototype technology. Through the comparison of angular velocity at critical positions between the drivelines with DMF torsional damper and the one with traditional driven pl
22、ate type clutch torsional damper in 5th speed, it was found the formers vibration isolation efficiency is 40% better than that of the latter. Key words:Dual-mass flywheel torsional damper,Quadrangle-Spring machine,Elastic analysis,Optimization designZF低地板客车驱动桥齿轮、轴承受力计算与MASTA软件校核对比分析曲琦 孙国晖(第一汽车集团公司技术
23、中心)【摘要】以德国ZF低地板客车驱动桥为例,对螺旋锥齿轮、轮边斜齿圆柱齿轮系及轴承受力进行了系统分析,并与MASTA软件建立的驱动桥模型计算结果进行了对比,从而总结出驱动桥齿轮及圆锥滚子轴承、圆柱止推轴承受力与校核的一整套计算方法。另外,指出了目前MASTA软件在螺旋齿轮校核中的不足。主题词:低地板客车 驱动桥 齿轮 轴承 受力计算中图分类号:U463.218 文献标识码:A 文章编号:10003703(2008)09002208Comparison and Analysis between Calculation Results of Axle Gear and Bearing Force
24、 for ZF Low Floor Bus with Its MASTA Software Checking Results Qu Qi, Sun Guohui(FAW Group Corporation R&D Center)【Abstract】Taking German ZF low floor bus axle as an example, systematic analysis and study of force on spiral bevel gears, helical gears of hub reduction and bearing force are introduced
25、 in this paper, and contrast with calculation results of the driving axle model by software MASTA is made, consequently, a whole set of calculations and check methods on force borne on axle gear, tapered roller bearing, and cylindrical thrust bearing has been summarized. In addition, disadvantages o
26、f MASTA software in checking spiral bevel gears are also pointed out in the paper.Key words:Low floor bus, Axle, Gear, Bearing, Force analysis 转向工况下汽车半主动悬架模糊PID控制陈 龙 陈柏林 赵景波 牛礼民 江浩斌 (江苏大学)【摘要】根据汽车系统动力学原理及牛顿力学定律建立了转向工况下的半主动悬架整车数学模型,并将模糊规则控制与传统PID控制相结合,设计了基于可调阻尼减振器的汽车半主动悬架模糊PID控制器。运用Matlab7.0/Simulink
27、6.0软件对此控制系统进行了仿真计算,结果表明,该控制器有效改善了汽车在转向工况下的动态性能,保持了良好的车身姿态,提高了乘坐舒适性。主题词: 半主动悬架 转向工况 模糊PID控制中图分类号:U463.33 文献标识码:A 文章编号:10003703(2008)09003005Fuzzy PID Control of vehicle Semi-Active Suspension System in the Steering SituationChen Long, Chen Bailin, Zhao Jingbo, Niu Limin, Jiang Haobin (Jiangsu Univers
28、ity)【Abstract】A complete vehicle mathematics model of semi-active suspension system is established in the steering situation based on the principle of vehicle dynamics and Newtons Law of Mechanics, and the semi-active suspension fuzzy PID controller based on adjustable damping shock absorber is desi
29、gned by combining fuzzy control with conventional PID control. The control system is simulated on software Matlab7.0/Simulink6.0, and the simulation results show that the controller can improve the vehicle dynamic performance, keep good vehicle body attitude and improve the ride comfort in the steer
30、ing situation.Key words: Semi-active suspension, Steering situation, Fuzzy PID controlISG混合动力场地货运牵引车动力总成参数匹配与仿真连志伟1, 2 邓亚东1 颜超1, 2 徐国卿2(1.武汉理工大学;2.深圳先进技术研究院)【摘要】针对场地货运的特殊工况,基于MATLAB/ADVISOR平台建立了起动/发电机一体化混合动力牵引车系统。在保证整车动力性的前提下,以降低油耗为目标,对混合动力总成的发动机、电机和电池等元件进行了参数匹配设计。仿真结果表明,所选择的参数设计合理,改装后的混合动力场地货运牵引车在满
31、足整车动力性的前提下改善了燃油经济性。主题词:混合动力汽车 动力总成 参数匹配 仿真中图分类号:U469.5+1 文献标识码:A 文章编号:10003703(2008)09003504Simulation and Parameter Matching of ISG Hybrid Venue Freight Tractor Powertrain SystemLian Zhiwei1, 2, Deng Yadong1, Yan Chao1,2, Xu Guoqing2(1. Wuhan Institute of Technology;2. Shenzhen Institute of Advance
32、d Technology)【Abstract】For the special driving cycle of the venue freight, an integrated starter/generator(ISG)hybrid electric tractor system is established based on platform MATLAB/ADVISOR. Under the precondition to assure the power performance, the parameters matching of the engine, motor and battery etc of the hybrid powertrain is designed to reduce fuel consumption. Simulation results show that the designed parameters are reasonable and the refitted
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