排序方式: 共有23条查询结果,搜索用时 15 毫秒
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本文介绍了在汽车行驶过程中遇到发动机熄火、制动失效、轮胎爆裂、车灯熄灭、飞车以及方向失灵等突发故障时,驾驶员应采取的紧急处理措施。 相似文献
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In this paper, we investigate the transient characteristics of combustion and emissions during engine start/stop operations
in hybrid electric vehicle (HEV) applications. Hydrocarbon (HC) emissions during the initial 2nd∼9th cycles are found to be significantly greater when the engine is quickly started under the original engine calibration mode.
Lower intake manifold absolute pressure (MAP) was also found to cause larger residual gas dilution and poor combustion, resulting
in a higher HC concentration when the cranking speed was increased. The post-catalyst HC concentration was found in the way
of initially decrease and then to increase again as the cranking speed was increased. A lowest concentration value was achieved
at a cranking speed of 1000 r/min. Engine shut-down by fuel cut-off was shown to produce lower emissions than shut-down by
ignition cut-off as one can avoid misfire of the last fuel injection cycle. The fuel deposited during the stop process seems
to impact engine restart enrichment mostly during the initial 0.7 s for this engine, whose performance is dominated by the
MAP transition characteristic and the time coefficient for fuel vaporization in this time period 相似文献
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本文重点对中途站的合理位置进行设计与分析,同时根据中途站的具体位置给出中途站样式的建议,希望能够优化中途站设计,不仅将中途站对交通的干扰降为最低,也力争做到以人为本。 相似文献
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终止站停命令的缺陷及解决方法 总被引:1,自引:0,他引:1
广州地铁1号线正线信号设备由德国西门子公司引进,在使用过程中系统存在一定的缺陷.为保证行车安全,在分析该信号系统原理的基础上,结合用户经验,重点对系统中"终止站停"操作指令的原理及缺陷进行研究,提出相应的解决方法. 相似文献
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WU Xiang-lin ZHANG Yong 《交通与运输》2007,(1)
快速公交系统充分利用道路资源,形成大容量、快捷、舒适的公交服务体系,将是承担我国大中城市出行交通的主体,是解决当前大中城市交通问题的重要途径。论文在研究城市主干道交通流行驶特性的基础上,结合城市道路网及交通特性分析、城市主干道快速公交(BRT)系统的交通功能及主干道沿线用地特征分析,提出了城市主干道快速公交(BRT)系统规划布局的合理站距。 相似文献
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站距是公交线网设计的一个关键因素。它不仅影响乘客的出行,更影响到整个公共交通的运行。在分析城市公交站点布设模型的基础上,提出了以乘客出行费用最小为目标的公交站距优化模型。 相似文献
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