基于传感器的车载排放监测系统在两个月内的初步测试结果.pdf

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1、Preliminary Results of Sensor Based Onboard Sensing Analysis And Reporting from Fleets During a Two Month TimeframeGrace JohnsonGeorge Scora,Zisimos Toumasatos,Jinsuh Jung-Aum,Georgios Karavalakis,Thomas D.Durbin,and Kent JohnsonCE-CERT13th Annual International OSAR ConferenceMarch 14,2024Source:ICC

2、T white paper Nov 2019*Brake and distance specific NOx emissions for Urban bin do not include Idle operation,only 1-25 mph operation is included189 tests between 2010 and 2019 Model Year(MY)2010-2016 with SCR Technology 43%of the activity is between 0-25 mphThis represents 40%of the NOx massIn Use E

3、missions Vary with Vehicle Operation2Laboratory,In-Use Measurement,and On-Board Sensing Laboratory 2%accuracy(1 day of data takes weeks/months to set up)In-use measurement 5%(1 day of data takes 4-6 hrs to set up)On-board sensing 10%(1 year of data takes 1 hr to set up)3LaboratoryIn-Use MeasurementO

4、n Board SensingMontes,T.,2018 SAE OBD Symposium Indianapolis,Diesel OBD Programs ECARD Division presentation.Tan,Y.,Collins,J.,Yoon,S.,Herner,J.,Henderick,P.,Montes,T.,Ham,W.,Howard,C.,Hu,S.,Johnson,K.,Scora,G.,Sandez,D.,Durbin,T.,2018.NOx Emission Estimates from the Activity Data of On-Road Heavy-D

5、uty Diesel Vehicles.Presentation at 28th CRC Real World Emissions Workshop,Garden Grove,CA,March.Yang,J.,Durbin,T.D.,Jiang,Y.,Tange,T.,Karavalakis,G.,Cocker III,D.R.,Johnson,K.C.,2018.A comparison of a mini-PEMS and a 1065 compliant PEMS for on-road gaseous and particulate emissions from a light dut

6、y diesel truck,Science of the Total Environment,vol.640-641,368-376.One Day of PEMS Testing Is Not Representative Emissions change between days on the same vehicle PEMS data presented emissions measured on one day OSAR data showed several days of continuous monitoring results4Source ARB funded ZANZE