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Development of an Integrated Diesel Exhaust Aftertreatment Simulation Tool With Applications in Aftertreatment System Architecture Design

机译：开发一体化柴油机排气后处理仿真工具，在后处理系统架构设计中的应用

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As emissions regulations are becoming increasingly stringent worldwide, multiple exhaust aftertreatment devices are considered in order to minimize diesel engine tailpipe emissions. This paper presents the development of an integrated model of an advanced diesel aftertreatment system that consists of a diesel oxidation catalyst (DOC), a Lean NO{sub}x Trap (LNT), a diesel particulate filter (DPF), and connecting exhaust pipes. All component models are incorporated into a unified diesel exhaust aftertreatment simulation tool with uniform I/O in MATLAB/Simulink. The platform and approach to incorporate all component models into a single system model are described. The developed integrated diesel aftertreatment system model has been employed to simulate tailpipe emissions of a light-duty vehicle over the US Federal Test Procedure (FTP) emission certification cycle. The integrated system model was also utilized in the sensitivity study of the diesel aftertreatment system design parameters, including the size, the PGM loading, the catalyst formulation, and the location of each aftertreatment device. Finally, the integrated system model was applied to evaluate various diesel aftertreatment system architecture design concepts. The integrated diesel exhaust aftertreatment simulation tool provides the capability to efficiently evaluate various aftertreatment system architecture designs (such as the order and positioning of each aftertreatment device), and optimize design parameters of each aftertreatment device (such as the size and PGM loading) in order to minimize tailpipe emissions and cost.
机译：随着排放法规在全球变得越来越严格的情况下，考虑了多种排气后处理装置，以最大限度地减少柴油发动机尾管排放。本文介绍了一种由柴油氧化催化剂（DOC）的先进柴油后处理系统的综合模型的开发，瘦NO {SUB} X陷阱（LNT），柴油颗粒过滤器（DPF）和连接排气管。所有组件模型都被融入了统一的柴油机排气后处理仿真工具，在Matlab / Simulink中均匀I / O.描述了将所有组件模型结合到单个系统模型中的平台和方法。所开发的综合柴油机后处理系统模型已被用于轻型车辆在美国联邦测试程序（FTP）排放认证周期的模拟尾气排放。集成系统模型也用在柴油后处理系统的设计参数，包括大小，PGM加载，催化剂配制，并且每个后处理装置的位置的敏感性研究。最后，应用了集成系统模型来评估各种柴油后处理系统架构设计概念。集成的柴油机排气后处理仿真工具提供了有效地评估各种后处理系统架构设计的能力（例如每个后处理设备的顺序和定位），并在顺序中优化每个后处理装置（例如尺寸和PGM负载）的设计参数尽量减少尾气排放和成本。

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