共查询到19条相似文献，搜索用时 432 毫秒
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主动悬架系统和电动转向系统分属于现代汽车不同的底盘系统,但它们之间相互作用、相互影响.文章以LS430主动悬架系统和电动助力转向系统为研究对象,在应用原车配件的基础上设计开发了主动悬架及电动转向系统模拟实验装置,通过本系统不仅能够清楚地了解主动悬架及电动助力转向系统的结构组成,提取不同的传感器数据波形、动态数据流等,而且能够再现原车主动悬架和电动转向系统的控制策略和控制过程,同时利用该模拟实验装置,能够方便学校教学和企业培训. 相似文献
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根据EPS（电动助力转向）与汽车底盘悬架系统在汽车上的实际装配位置关系,设计了转向与悬架集成控制试验台架。介绍了该试验系统的结构与工作方式,在测试过程中,系统可以采集控制过程中的各种信息,为集成控制系统的控制策略与控制参数的修改提供了依据。使用结果表明,该系统能够满足道路实验的数据采集需要。 相似文献
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张耿党 《广东白云职业技术学院广州白云工商高级技工学校学报》2004,11(2):70-75
本充分运用图表简明扼要地介绍了日产汽车公司集超声波悬架和电子控制动力转向为一体的DUET-SS系统的功能、结构和工作原理。 相似文献
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继电子技术在发动机、变速器、制动器和悬架等系 统得到广泛应用后，国外汽车电动助力转向已部分取 代传统的液压助力转向，电动助力转向已成为世界汽 车技术发展的新的研究热点。电动助力转向由电动机 直接提供动力，助力大小由电控单元控制。它不仅能 节约燃料，提高主动安全 相似文献
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针对汽车理论中尚无整车质量分配系数研究的缺憾,考虑垂向和侧向路面激励的复合影响,以14个自由度整车传统物理模型为背景,对簧载质量进行空间动力学分析,借助4个轮系方位与簧载质量质心处的运动学关系,研究车体垂直、侧向、俯仰角、侧倾角和横摆角这五种运动,进而推导得到整车悬架与4个1/4悬架系统间的动力耦合定量关系,发展与完善汽车质量分配系数理论,并为今后汽车悬架系统振动控制、转向与操纵系统平稳性的研究提供新的视角与思路。 相似文献
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王建伟 《延安教育学院学报》2014,(3):132-134
车辆的电子化是汽车技术的发展趋势,近年来,为提高汽车的动力性、经济性、操稳性、平顺性和安全性能等各方面性能,在发动机、变速器、悬架系统、制动系统以及转向系统中电子控制得到广泛应用,例如车辆防抱死制动系统（ABS）、半主动悬架系统（SAS）、牵引力控制系统（TCS）、电子稳定系统（ESP）、四轮转向系统（4WS）等等。其中防抱死制动系统（ABS）可以提升车辆制动工况下的制动性能和安全性能,并能适当改善车身姿态;半主动悬架系统（SAS）可以提升车辆平顺舒适性能。以上各控制系统均为单一控制系统,只能针对提高改善某一性能指标,而要提高整车性能不能仅仅将各控制子系统简单地叠加,而需要各个控制子系统协调工作。车辆底盘的集成控制成为现代车辆动力学控制研究的热点之一。 相似文献
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在ADAMS／Car中对巢车麦弗逊式前悬架和转向系统建要了动力学分析模型,并进行了仿真分析,同时在ADAMS／Insight中对悬袈进行了优化,结果表明优化后的悬架系统有效的改善了整车的性能。 相似文献
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皮连根 《九江职业技术学院学报》2012,(3):30-32
论文在分析汽车动力总成悬置系统的基础上,构建悬置系统的力学模型和数学模型,对橡胶悬置系统进行优化设计,建立相关数学模型,并结合某车型的实际参数,设计橡胶悬置,通过运用MATLAB软件进行仿真和验证,证明橡胶悬置设计基本满足要求。 相似文献
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基于系统动力学理论建立了含被动悬架的汽车半车动力学模型。在MATLAB／Simulink中,集成以白噪声一积分器产生的地面输入,及前、后悬架非簧栽质量模型和车体运动模型,最终实现被动悬架特性仿真的软件编程,为悬架参数的设计和优化提供了技术基础。 相似文献
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To improve the suspension performance and steering stability of light vehicles, we built a kinematic simulation model of a whole independent double-wishbone suspension system by using ADAMS software, created random excitations of the test platforms of respectively the left and the right wheels according to actual running conditions of a vehicle, and explored the changing patterns of the kinematic characteristic parameters in the process of suspension motion. The irrationality of the suspension guiding mechanism design was pointed out through simulation and analysis, and the existent problems of the guiding mechanism were optimized and calculated. The results show that all the front-wheel alignment parameters, including the camber, the toe, the caster and the inclination, only slightly change within corresponding allowable ranges in design before and after optimization. The optimization reduces the variation of the wheel-center distance from 47.01 mm to a change of 8.28 mm within the allowable range of -10 mm to 10 mm, promising an improvement of the vehicle steering stability. The optimization also confines the front-wheel sideways slippage to a much smaller change of 2.23 mm; this helps to greatly reduce the wear of tires and assure the straight running stability of the vehicle. 相似文献
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建立了一个基于UG平台的悬架优化设计系统模型,利用UG软件实现悬架的三维参数化建模并建立悬架零部件图形数据库。介绍了汽车悬架优化设计与分析系统的结构和功能及图形数据库的建立方法,并对各个功能模块予以阐述;介绍了UG软件在系统中的应用。系统数据库采用SQL Server7.0建构与维护,系统中面向对象的程序软件采用C++ Builder语言设计开发。 相似文献
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The current method to solve the problem of active suspension control for a vehicle is often dealt with a quarter-car or half-car model.But it is not enough to use this kind of model for practical applications.In this paper,based on considering the influence of factors such as,seat and passengers a MDOF(multi-degree-of-freedom)model describing the vehicle motion is set up.The MODF model,which is 8DOF of four independent suspensions and four wheel tracks,is more applicable by comparison of its analysis result with some conventional vehicle models.Therefore,it is more suitable to use the 8DOF full-car model than a conventional 4DOF half-car model in the active control design for car vibration.Based on the derived 8DOF odel,a controller is designed by using LQ(linear quadratic)control theory,and the appropriate control scheme is selected by testing various performance indexes.Computer simulation 8is carried out for a passenger car running on a road with step disturbance and random road disturbance expressed by Power Spectral Density(PSD).Vibrations corresponding to ride comfort are derived under the foregoing road disturbances.The response results for uncontrolled and controlled system are compared.The response of vehicle vibration is greatly suppressed and quickly damped.which testifies the effect of the active suspenson.The results achieved for various controllers are compared to invesigate the influence of different control schemes on the control effect. 相似文献
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A method of topology synthesis based on graph theory and mechanism combination theory was applied to the configuration design of locomotion systems of lunar exploration rovers (LER).Through topology combination of wheel structural unit,suspension unit,and connecting device unit between suspension and load platform,some new locomotion system configurations were proposed and the metrics and indexes to evaluate the performance of the new locomotion system were analyzed.Performance evaluation and comparison between two LER with locomotion systems of different configurations were analyzed.The analysis results indicate that the new locomotion system configuration has good trafficability performance. 相似文献
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以VDS-A01客车前空气悬架为研究对象,充分考虑了其他系统和外界条件对悬架计算结果精度的影响,计算了前空气悬架的刚度、固有频率和侧倾刚度,计算结果与实验结果相对偏差在3％以内,计算结果满足设计要求.该参数计算方法对客车空气悬架开发与设计具有良好的借鉴意义. 相似文献
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以商用车空气悬架C型梁为研究对象,采用材料替换并结合拓扑和尺寸优化的方法进行轻量化设计。基于变密度法,以结构刚度最大化为目标进行拓扑优化,获得结构初始构型。在拓扑优化结果的基础上,综合考虑3种工况,以板件厚度为设计变量,各工况下的应力和变形为约束条件,质量最小化为目标,进一步进行尺寸优化。优化结果表明,设计方案满足结构刚强度要求,降低了结构的质量,达到了轻量化的效果。 相似文献
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INTRODUCTION The cable-stayed-suspension (CSS) hybridbridge is developed from the traditional cable-stayedbridge and suspension bridge, and has some advan-tages of the two bridge types described as follows: 1. As compared with the suspension bridge of thesame span length, the suspension portion is greatlyshortened, so the tensional forces in the main cablesare greatly decreased, which helps to decrease theconstruction costs of the main cables and the massiveanchors, and the difficulty of… 相似文献