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首页> 外文会议>SAE International Powertrains, Fuels Lubricants Meeting >A Quantitative Study of Fuel Efficiency of Diesel Vehicles with Diesel Particulate Filter in Repeated Test Cycles
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A Quantitative Study of Fuel Efficiency of Diesel Vehicles with Diesel Particulate Filter in Repeated Test Cycles

机译：柴油机柴油机柴油机燃料效率的定量研究在重复试验周期中的柴油机

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Diesel Particulate Filter (DPF) has become a key technology in modern diesel vehicles to achieve low emissions, and the performance of DPFs has been improved through considerable efforts by manufacturers. While DPF is essential to meeting the stringent regulations for particulate matter (PM), it has a negative impact on fuel efficiency (FE) due to its periodical regeneration for burning off the accumulated PM in DPF. Hence, detailed assessments on the FE impact of DPF regeneration technologies are necessary to better understand the FE potential of diesel vehicles. However, few quantitative FE studies have been reported regarding the DPF regeneration technologies applied to vehicles introduced into the market. We investigated the influence of the DPF regeneration on FE performance using three new diesel vehicles with different DPF regeneration technologies. The tests were carried out as consecutive runs of a chassis dynamometer test cycle, covering the DPF regeneration interval and duration. Various driving conditions were examined as repeated test cycles of the JC08 and JE05 driving schedules of the Tokyo Metropolitan Government No. 2, or the US EPA Highway Fuel Economy mode. A multiple gas-sampling bag system was introduced to enable FE measurements without interruption during the entire operation of the repeated test cycles. The new bag system was important in the quantitative analysis of the DPF regeneration effect on the FE of the diesel vehicles.
机译：柴油机微粒过滤器（DPF）已成为现代柴油车的关键技术，以实现低排放，通过制造商的相当大的努力，改善了DPF的性能。虽然DPF对于满足颗粒物质（PM）的严格规定至关重要，但由于其定期再生，因此对DPF中累积的PM燃烧的期全再生，它对燃料效率（FE）产生负面影响。因此，有必要详细评估DPF再生技术的FE影响，以更好地了解柴油车辆的FE潜力。然而，据报道，有关应用于市场的车辆的DPF再生技术，已经报道了很少的量化Fe研究。我们调查了DPF再生对具有不同DPF再生技术的新型柴油车辆对FE性能的影响。测试是连续运行的底盘测力计测试循环，涵盖DPF再生间隔和持续时间。检查各种驾驶条件是JC08和JE05驾驶时间表的重复试验周期，东京都市政府第2号，或美国环保局公路燃料经济模式。引入多个气体采样袋系统以使得在重复测试周期的整个操作期间能够使Fe测量能够中断。新包系统对于对柴油机FE的DPF再生效应的定量分析很重要。

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