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随着城市的发展及“公交优先”的方针,昆明市道路增设了几条公交专用道,对城市出行的人们乘车难有所改善。但当有些公交车辆行驶停靠站后就会有机油滴到路面上。污染环境,有损公交形象。 相似文献
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根据交通运输部、公安部、国管局、中华全国总工会《关于组织开展2019年绿色出行宣传月和公交出行宣传周活动有关事项的通知》精神,全国多地集中在9月16-22日开展主题为“公交优先、绿色出行”的“公交出行宣传周”活动,深入宣传绿色出行的重大意义,促进公交优先落地生根。 相似文献
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公交优先,就是百姓优先。500米内有站点、一块钱就能乘公交,公共自行车免费骑,还有“高大上”的智轨列车……在株洲,越来越多的市民感受到了便捷公共交通带来的幸福感。随着株洲市“公交都市”创建持续深入,这种畅快的出行体验还会来得更加强烈。 相似文献
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郑州公交秉承“公交优先,公交必须优秀”的理念,努力为市民提供安全、方便、快捷、舒适、经济的出行服务,得到了政府和百姓的首肯和好评,赢得了众多国家级、省市级荣誉。在成绩与荣誉面前.郑州公交谦虚谨慎,戒骄戒躁.公交优秀无止境,公交优秀永远在路上。 相似文献
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党的十八大以来,丽水市公共交通集团有限公司(以下简称“丽水公交”)在上级部门的正确领导下,始终秉承着“公交优先,百姓优先”的经营理念,贯彻公交优先战略,十年来,发生了翻天覆地的变化,步入了“更绿色”“更智慧”“更便民”“更安全”的高质量发展之路。 相似文献
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<正>随着我国城镇化进程的不断加快,居民出行总量和出行距离出现大幅度增长,交通拥堵现象也日益严重。在此背景下,国家启动了“公交都市”创建工程,倡导城市公共交通主动引导城市发展。为加快落实公交优先发展战略建设国家“公交都市”,各地公交企业对公交驾驶员的需求逐步增大。而近几年许多公交企业却出现了“司机荒”现象,公交驾驶员流失严重,招聘难度越来越大,面临“老龄化”困境。 相似文献
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<正>近年来,随着绿色出行成为主流,人民群众对“最后一公里”品质出行的愿望越来越强烈,出门就是公交站点,公交与地铁无缝接驳,这样的出行方式已逐渐成为市民的日常。郑州市公共交通集团有限公司(以下简称“郑州公交”)将地铁、公交等多种绿色出行方式有机串联起来,从而实现两者间的无缝对接,让更多市民共享便捷、绿色、低碳交通,让城市出行的“最后一公里”更加顺畅。 相似文献
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J. Kim J. Kang Y. Kim T. Kim B. Min H. Kim 《International Journal of Automotive Technology》2010,11(4):565-571
The power split type hybrid system transmits engine power by dividing it into the electrical unit and the mechanical unit.
Its power transmission efficiency is highest at the mechanical point (MP), where the full power is transmitted to the mechanical
unit. In this study, the equation for the MP was derived for the gear ratios of a general 4-node lever model. The MP characteristics
for the transmission ratio (TR) of the input split and compound split structures were examined using the equation derived.
Using the examined input split and compound split structures, a systematic design method for the dual mode power split transmission
was proposed. In the dual mode power split transmission, the MP could be positioned at the desired TR, and the input split
and compound split modes could be selectively used according to the clutch combination, which leads to the operation of the
vehicle within a high system efficiency range. 相似文献
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H. W. Lee S. H. Park M. W. Park N. G. Park 《International Journal of Automotive Technology》2009,10(4):459-467
A mathematical model of an automotive transmission is developed, that considers the flexibility of the shafts, bearings, and
gear teeth, and gyroscopic effects of geared rotors. The transverse, torsional, and axial motions are strongly coupled due
to helical gearing. The excitation forces acting on the automotive transmission are classified into first, second, and third
grades, based on the magnitudes of the forces that are determined by the perturbation method. The excitation forces are caused
by the mass imbalances among gears, misalignment of shafts, clearance and non-linear deformation of bearings, transmission
errors, and the periodic variation of the gear mesh stiffness. A bench test on loading conditions is carried out for the third
speed of the automotive transmission. The experimental results of vibration characteristics are compared with those from theoretical
analysis. The results show good agreement, i.e., within a tolerance of 3.3%. 相似文献
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法拉利F355、F360、F430、599GTB……这些具有先进变速器的型号数字不仅仅代表了他们的高性能,更代表着设计公司玛涅蒂·马瑞利的顶尖智慧. 相似文献
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近日,通用汽车公司艾里逊变速箱与北京公共交通控股有限公司签署了关于提供2200台TorqmaticTM全自动变速箱的合同.根据合同,通用汽车公司艾里逊变速箱将在2005年内向北京公共交通控股有限公司提供2200台TorqmaticTM全自动变速箱.由此,到年底,将有约4000辆使用艾里逊变速箱的公交车驶上北京街头.此举将进一步确立通用汽车公司艾里逊变速箱在中国市场的领先地位. 相似文献
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《JSAE Review》2002,23(4):513-518
New 6-speed and 5-speed manual transmissions have been developed for a few FF cars that match up with the high revolutions and high power of the new i-VTEC [1] engine. The development objectives were to improve fuel efficiency and enable smoother transmission shiftings as well as to achieve a compact design. In order to achieve these targets, the transmission employs technologies to reduce friction, weight and transmission length, and also to create a large capacity synchronizer system enabling high rotational speed. 相似文献
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本文在分析汽车自动变速器研发趋势与前景的基础上,总结了我国自动变速器技术自主发展所实现的突破,并对今后发展提出了相应的建议和举措。 相似文献