Digital Signal Processing

Control of urea SCR systems for US diesel motor applications Michiel forefront Nieuwstadt Devesh Upadhyay E-COSM09- IFP, Paris, France carbamide SCR applications in the US E-COSM09 contents 1. SCR grace in the US 2. SCR basics system and chemistry 3. Issues in inhibit 1. ammonium hydroxide terminal control 2. Ammonia storage observers 4. NOx sensors 5. Outlook carbamide SCR applications in the US E-COSM09 1. SCR landscape in the US US diesel powertrains use in the first place SCR for NOx aftertreatment: LNT does not work well for the high temperature solemn duty bicycle LNT struggle to reach the high necessary conversion efficiencies (>80%) LNT applications: VW Jetta (T2B5), imposture Ram (T2B8) SCR: 2009: Mercedes GL320, T2B5, 3.0l V6 BMW 335d, T2B5, 3.0l I6, twin turbo BMW X5 xDrive, 3.0l I6, twin turbo Audi Q7, 3.0l V6 2010: get over F250, F350, F450, ULEV2, 6.7l V8 GM trucks, 2500, 3500, ULEV2, 6.6l V8 Chrysler/ besiege/Cummins tr ucks, ULEV2, 6.

7l I6 urea SCR applications in the US E-COSM09  crossbreeding F250 Superduty truck Urea SCR applications in the US E-COSM09 F350 vs Focus Urea SCR applications in the US E-COSM09 Ford F250 superduty Urea SCR applications in the US E-COSM09 Emissions standards US diesel standards are subject to a drastic drop-off in 2010 2013 will legislate a reduction in OBD threshold US emissions standards, EPA75 light duty, < 8500 lbs, Tier2 Bin5 light duty, < 8500 lbs, Tier2 Bin8 sober duty chassis cert, 8,500-10,000 lbs thick duty chassis cert, 10,000-14,000 lbs heavy duty dyno c ert, >14,000 lbs 2010 emissions 0.05 0.2 0.2! 0.4 0.2 2013 emissions 0.05 0.2 0.2 0.4 0.2 OBD 0.125 0.5 0.6 0.6 0.6 OBD 0.0875 0.35 0.4 0.4 0.4 unit chiliad/ myocardial infarction gramme/mile gram/mile gram/mile gram/bhphr abutting event in US diesel emissions will be LEV 3 for chassis cert: Tier2 Bin2: 0.02 g/m NOx invigorated cycles: US06, SC03 No known changes in dyno certification standards. Urea SCR applications in the US E-COSM09...If you want to get a full essay, rank it on our website: OrderCustomPaper.com

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