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汽车燃油经济性台架检测与评定 总被引:1,自引:0,他引:1
张进坤 《汽车运输节能技术》1999,(3):22-27
本文介绍在现有的装备条件下,摸索出利用车速表检测台进行汽车燃油经济性台架检测的方法,并以此分析、总结了对汽车进行燃油经济性评定的计算方法. 相似文献
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消费者在购车前考虑价格、外观等因素的同时.更多关注的是汽车的使用费用,而使用费用里最主要就是油耗,也就是更多地关注汽车的燃油经济性。即汽车在一定的使用条件下,以最小的燃油消耗量完成一定行驶里程数时的能力。简单地说就是用一升燃油能行驶越远越好;在完成一定行驶里程数时.消耗的燃油越少越好。 相似文献
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混合动力汽车燃油经济性研究 总被引:3,自引:0,他引:3
应用能量分析的方法,以轿车和载货汽车为例,研究了混合动力汽车(HEV)与传统燃油发动机汽车的燃油经济性。发现按原车后备功率最大值时所对应的车速所需的驱动功率作为HEV燃油发动机功率的选择依据,节油效果最显著。当燃油驱动功率和电动驱动功率各占50%左右时,HEV轿车的经济性评价指标为原车的22.8%,HEV货车的经济性评价指标为原车的79.2%,同时又能保证动力性基本不变。结果表明,用混合动力可以有效地降低汽车的100km燃料消耗量,轿车的燃料消耗降低幅度大于货车。 相似文献
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本文论述了利用CRUISE软件进行汽车建模的过程,并对某重型商用车的动力性和燃油经济性进行了仿真分析。 相似文献
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针对目前车辆燃油箱在取油时,采用连接法兰的方案对燃油箱本体造产生了严重的焊接变形,笔者通过分析焊接法兰方案找出不足,提出了新的改进方案。 相似文献
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FTP75 driving cycle is used in many countries for evaluation of vehicle fuel economy. FTP75 has 3 phases, where the Phase 1 and the Phase 3 have a same velocity profile, but the Phase1, which is known as cold start phase, shows lower fuel efficiency than the Phase 3. In order to analyze the difference of fuel economy between Phase 1 and Phase 3, vehicle tests are performed. The test results show that the differences of fuel economy is ranging from 3.9% to 18.5%. The factors of the difference of fuel economy for gasoline automatic transmission vehicles are analyzed in this research. The key factors affecting the difference of fuel economy are engine friction loss, torque converter loss and accessory loss. The quantitative analysis of these factors is performed. 相似文献
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H. S. Wi Y. K. Lee J. I. Park J. H. Lee K. S. Park 《International Journal of Automotive Technology》2009,10(6):771-776
This paper focuses on fuel economy improvement according to the type of power steering system. Usually, a conventional power
steering system is directly driven by the crankshaft of the engine with a belt, known as HPS (hydraulic power steering). However,
there is some inefficiency with this system at high engine speeds. To improve this inefficiency, automobile makers have developed
two power steering systems: EHPS (electro-hydraulic power steering) and MDPS (motor-driven power steering) or EPS (electric
powered steering). However, there has been insufficient study of effects of the type of power steering system on fuel economy.
In this paper, the effect of the type of power steering system on fuel economy is studied experimentally, and calculations
of the effect on vehicle fuel economy are presenting using computer simulation with AVL cruise software. The results demonstrate
that a 1% vehicle fuel economy improvement can be achieved in a vehicle with an electro-hydraulic power steering system compared
to a vehicle with a hydraulic power steering system. In addition, a 1.7% vehicle fuel economy improvement can be achieved
using a full electric power steering system in a FTP-75 driving cycle. These results could be used to choose a power steering
system. 相似文献
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城市客车燃料经济性的影响因素 总被引:1,自引:0,他引:1
城市客车是公交行业运送乘客的工具,由于公交企业运营车辆多,运营时间长,燃油消耗量往往比其他客运部门大,使其成为响公交企业运营成本的重要因素之一。如何提高城市客车燃料经济性,以最少的燃油消耗量,去完成运送更多乘客的工作量,对提高公交企业的经济效益和社会效益都有着重 相似文献
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近年来,国际市场原油价格不断上涨,纽约商品交易所原油期货价格一度突破55美元1桶大关,虽然近期油价有所回落,但仍然维持在较高的价位。世界石油进口国普遍感受到了高油价给经济发展带来的压力,并纷纷研究和采取节油措施,以应对高油价对国民经济造成的负面影响。我国是发展中国 相似文献