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首页> 外文会议>International Conference on Engines and Vehicles >Diesel Engine Technologies Enabling Powertrain Optimization to Meet U.S. Greenhouse Gas Emissions
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Diesel Engine Technologies Enabling Powertrain Optimization to Meet U.S. Greenhouse Gas Emissions

机译：柴油机技术使动力总成优化能够满足美国温室气体排放

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The world-wide commercial vehicle industry is faced with numerous challenges to reduce oil consumption and greenhouse gases, meet stringent emissions regulations, provide customer value, and improve safety. This work focuses on the new U.S. regulation of greenhouse gas (GHG) emissions from commercial vehicles and diesel engines and the most likely technologies to meet future anticipated standards while improving transportation freight efficiency. In the U.S., EPA and NHTSA have issued a joint proposed GHG rule that sets limits for CO_2 and other GHGs from pick-up trucks and vans, vocational vehicles, semi-tractors, and heavy duty diesel engines. This paper discusses and compares different technologies to meet GHG regulations for diesel engines based on considerations of cost, complexity, real-world fidelity, and environmental benefit. In addition, the paper describes powertrain integration aspects for vocational and semi-tractor engines with technologies including advanced SCR, waste heat recovery (Rankine) cycles and downspeeding. Innovation in component technology coupled with system integration is enabling engine manufactures to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a greater than 50% brake thermal efficiency (BTE) for the engine plus aftertreatment system.
机译：全球商用车行业面临着减少石油消费和温室气体的众多挑战，符合严格的排放法规，提供客户价值，提高安全性。这项工作重点介绍了商用车和柴油发动机的温室气体（GHG）排放的新美国气体排放量，以及最有可能的技术，以满足未来预期标准的同时提高运输货运效率。在美国，EPA和NHTSA发布了一个拟议的GHG规则，该规则将CO_2和其他GHG的限制设定在拾取卡车和面包车，职业车辆，半拖拉机和重型柴油发动机中。本文讨论并比较了不同的技术，以基于成本，复杂性，现实世界忠诚和环境效益的考虑，满足柴油机的温室气体规定。此外，本文还介绍了动力总成集成方面，用于职业和半拖拉机发动机，具有高级SCR，废热回收（ranciNe）循环和倒下的技术。在加上系统集成正在使发动机部件技术创新制成品到具有效率高清洁柴油产品的开发与达到大于50％的制动热效率（BTE），用于在发动机加后处理系统的长期目标前进。

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