共查询到19条相似文献,搜索用时 453 毫秒
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汽车工业的快速发展,不但给石油资源带来了巨大压力,同时也产生了极为严重的环境污染问题。为了实现”节能减排”的发展目标,开发了起停技术,它可以改善燃油经济性,提高排放性能,具有巨大的发展潜力。文章介绍了起停技术在混合动力车中应用,包括微混技术和轻混技术;指出了该技术应用面临的问题——启动速度慢、发动机磨损及影响乘坐舒适性等;介绍了博世、马自达及丰田的研究进展。指出加装起停系统后,汽车的燃油经济性得到改善,排放性能提高。 相似文献
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电子控制系统的应用,提高了汽车的性能,在提高汽车动力性能的同时,使汽车的燃油经济性,尾气排放得到良好地改善,但也使汽车故障诊断变得复杂起来. 相似文献
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1 我国汽车排放控制水平现状 1.1 燃油质量 燃油是汽车发动机的动力源,燃油质量不仅直接关系到汽车的动力性、经济性、耐久性,而且对汽车的排放性能及安全性起着至关重要的作用。我国汽车工业的发展及汽车排放标准的日趋严格,对我国车用燃油的质量提出了更高的要求。 相似文献
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2013上海车展上,博格华纳围绕"专注创新"主题展出了一系列技术领先的汽车动力及传动系统解决方案和产品。博格华纳多年来始终专注于提高燃油经济性、降低排放、提升动力性能,为客户带来更多先进技术和非凡的驾驶体验。 相似文献
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介绍了某款手动挡车起停系统的开发应用,包括系统方案、起停零部件开发、起停控制逻辑、油耗对比试验。试验结果证明,采用起停技术后车辆在市区工况油耗可以降低至少6.5%,可以满足第三阶段油耗要求(7.7L/100km),证明起停技术是一种有效的整车节油手段,可以用于大批量生产。 相似文献
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Hydraulic hybrid powertrains are a critical technology used in buses to improve fuel economy and emission performance. New exploration in configuring a parallel hydraulic hybrid bus (PHHB) is developed in this paper with no changes made to the conventional base bus driveline. An integrated model and simulation of the parallel hydraulic hybrid bus is built based on AMESim, which is used to model the hydraulic powertrain and conventional bus driveline, and interlinked with a Matlab/Simulink/Stateflow model of the control unit. Compared to conventional buses, the fuel economy of the PHHB improved by 28% in real road tests at the SMVIC (National Center of Supervision and Inspection on Motor Products Quality (Shanghai)); the approximate improvement of fuel economy was 30% in simulated runs, which validates our model. Then a Non-linear Programming by Quadratic Lagrangian algorithm (NLPQL), is applied to optimize control strategies for improving fuel economy and emissions. Simulations also demonstrate that fuel economy and emission performance can be significantly improved. However, optimum parameters for maximum fuel economy and minimum emissions are not consistent. Simulation results show tradeoffs between fuel economy and emissions in PHHB, and optimal parameters can be selected by balancing design objectives. 相似文献