共查询到20条相似文献,搜索用时 78 毫秒
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介绍了东风载货汽车6挡变速器及变速操纵机构的结构,对用户使用6挡变速器系列车型中所遇见的常见故障进行分析,结合实际,提出排除故障的具体方法,供东风车用户参考。 相似文献
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A design approach for multi-speed automatic transmission with hybrid gear trains is proposed. The approach can be used to design automatic transmissions composed of planetary gear trains, fixed-axis gear trains or hybrid gear trains and the shifts follow the “one controlled part changing rule”. This approach consists of four parts: determining graphical configuration of the system using hypergraphs, analyzing power flow formulation, obtaining shifts configurations by shift searching algorithm, and determining physical configuration. A nine forward speed automatic transmission is analyzed to highlight the capacities of the proposed approach. The results have shown that the suggested approach is much clearer and less time consuming than the methods currently used. 相似文献
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本文详细阐述了鉴定二手汽车的步骤及方法,并说明如何鉴别事故车辆。列明了在评估二手车时影响车辆评估价格的各种因素,针对市场中各类车辆分别采用的不同评估方法。 相似文献
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《JSAE Review》1997,18(3):277-282
A technique based on the principle of acoustic reciprocity has been developed for measuring acoustic transfer functions of sound radiation from vibrating surfaces of the engine, power train, exhaust system and tires. In many realistic cases of sound radiation, reciprocal measurements of transfer functions are usually more convenient and mostly more accurate than the corresponding direct measurements. This paper explain the basic acoustic reciprocity and experimental setup and illustrate its benefits by application to measurements of transfer functions of sound radiation from the engine of a fully trimmed vehicle. 相似文献
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《汽车实用技术》2015,(2)
当前,汽车速度在不断提升,对于汽车的性能要求也越来越高。传统悬架在一定程度上对汽车性能的提升产生了阻碍,而随着各项技术的逐渐提升,在汽车中逐渐使用电子技术对汽车悬架予以控制,不仅可以将汽车舒适性提升,而且在操纵时其稳定性能也获得较大提升。近年来,汽车行业在致力于对各种最优悬架控制系统予以开发,以适应类型不一的行驶工况。在汽车尤其是高档车中,电子控制悬架系统性能越来越优越。而在电控悬架系统中有几个主要的传感器,本文以此为背景,简单阐述了汽车装置识别与检修的重要性,分析了汽车电控悬架系统的工作原理与系统结构,并针对车高传感器、方向盘转角传感器的原理与检修展开分析。 相似文献
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运用弹性薄板理论,根据连续配筋混凝土路面板挠度等效与应力等效原则,将作用于板中的车辆集中荷载通过傅里叶级数展开为等效的半渡正弦荷载,提出了车辆荷载作用下脱空的连续配筋混凝土路面板的竖向位移和应力公式.结果表明:集中荷载作用下连续配筋混凝土板的最大挠度与荷载大小、板的宽度成正比,与板的厚度、横向弹性模量成反比,其中板的宽... 相似文献
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GPS与微波干涉测量在桥梁动挠度测量中的对比分析 总被引:1,自引:1,他引:1
GPS实时动态技术已经在多座大型桥梁的位移测量中得到应用,而微波干涉测量技术近年来也在一些桥梁的挠度测量中得到应用.为评价这两种方法在超大跨度桥梁动挠度测量方面的适用性,在武汉阳逻长江大桥中对比使用了以卡尔曼滤波三差解算法为核心的GPS测量系统与基于微波干涉测量技术的建筑微变远程监测雷达.结果表明,GPS可以满足超大跨度柔性结构桥梁动挠度测量的要求,而建筑微变远程监测雷达由于其一维测量特性更适合于平面位移变化很小的桥梁. 相似文献
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为了分析弯沉测量结果上的差异,以水泥混凝土路面常见的2种弯沉测试方法为例,分析了板角弯沉测试时测点偏移对弯沉测试结果的影响,引入了测点偏移影响系数的概念,建立了允许偏移范围内实测弯沉的修正方法。结果表明,测点偏移对弯沉测试结果影响非常显著;测点向板内侧偏移时,2种测试方法均可引入测点纵向和横向偏移影响系数用来修正实测弯沉值,影响系数与荷载向板内移动的距离以及地基板相对刚度半径有关。因此,可以将测点偏移情况下的弯沉测试值转换为标准测点位置的弯沉值,方便了实测数据的统计处理,拓展了弯沉测试方法的应用范围,提高了弯沉测试的效率。 相似文献
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N. Kim H. Lohse-Busch A. Rousseau 《International Journal of Automotive Technology》2014,15(2):263-271
Owing to ever more stringent regulations and customers’ expectations, auto manufacturers have been considering numerous technology options to improve vehicle fuel economy. One of these is transmission technology, which has been shown to be one of the most cost-effective technologies. Over the past few years, transmissions have significantly evolved and have impacted both performance and fuel efficiency. As one of the advanced tranmissions, the dual clutch transmission (DCT) is the first automatic transmission to provide better efficiency than manual transmissions. DCTs provide reduced shift shocks and better driver comfort in addition to higher top speeds and torques. In this paper, a model and shifting controller for the DCT are developed in the vehicle systems context using Autonomie, a model-based vehicle simulation tool. Finally, the Autonomie DCT model and control strategy are validated using vehicle test data from Argonne’s Advanced Powertrain Research Facility. 相似文献
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邹晓宏 《内蒙古公路与运输》2011,(4):26-27
旗下营隧道是京新高速公路重要的控制性工程,文章阐述了该隧道防寒抗冻设计、隧道监控量测、超前地质预报设计及隧道安全风险评估等关键环节,为内蒙古自治区寒冷地区隧道的防寒抗冻设计、隧道监控量测、超前地质预报设计及隧道安全风险评估提供一定的参考。 相似文献