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A Methodology to Estimate the Mass of Particulate Matter Retained in a Catalyzed Particulate Filter as Applied to Active Regeneration and On-Board Diagnostics to Detect Filter Failures

机译:一种方法来估算保留在催化的颗粒过滤器中的颗粒物质的质量,以应用于有源再生和载轨道诊断以检测过滤器故障

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摘要

A methodology to estimate the mass of particulate retained in a catalyzed particulate filter as a function of measured total pressure drop, volumetric flow rate, exhaust temperature, exhaust gas viscosity and cake and wall permeability applicable to real-time computation is discussed. This methodology is discussed from the viewpoint of using it to indicate when to initiate active regeneration and as an On-Board Diagnostic tool to detect filter failures.
机译:讨论了估计在催化颗粒过滤器中保留在催化颗粒过滤器中的颗粒的质量,作为测得的总压降,体积流量,排气温度,废气粘度和滤饼和适用于实时计算的壁渗透性的函数。从使用它来指示何时启动有效再生的观点来讨论此方法,并作为用于检测过滤器故障的板载诊断工具。

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