This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Real-World Emission Analysis Methods Using Sensor-Based Emission Measurement System
Technical Paper
2020-01-0381
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Every year, exhaust gas regulations are getting stricter with the intention to solve the average air pollution problem, however, local roadside pollution is still a pressing issue. In order to solve this local roadside pollution problem, it is necessary to evaluate and/or predict “where” and “how much” pollutants such as NOx are emitted. To predict the local roadside pollution, it is necessary to collect emissions data from various kinds of vehicles driving on real-world and analyze them. In recent years, Real Driving Emission regulations using PEMS (Portable Emission Measurement System) have been introduced mainly in Europe. A typical PEMS configuration can weigh close to 100 kg however, and its weight affects the driving conditions of vehicles running on actual roads. In this study, we focused on the analysis of real-world emissions using SEMS (Sensor-based Emission Measurement System). Whereas PEMS is a method of sampling and analyzing exhaust gas, SEMS directly attaches a NOx sensor and PM sensor to the exhaust pipe and measures the concentration. Although SEMS has a limited number of items that can be measured compared to PEMS, other analysis is possible by devising the analysis method. This paper focuses on the analysis method of real-world emissions using SEMS and aims to examine the analysis method of CO2 emission concentration, exhaust gas flowrate, and local roadside emissions from the measured value of SEMS. In addition, an example of applying this analysis method using on-road test data of a diesel passenger car equipped with SEMS is shown. The NOx sensor can measure not only the NOx concentration but also the O2 concentration and air-fuel ratio. It is clarified that the CO2 concentration at wet condition can be calculated with high accuracy by using the measured values of the O2 concentration. Also, the exhaust flowrate is obtained by combining the intake air flow rate acquired through the vehicle's OBD and the air-fuel ratio measured by the NOx sensor. At that time, the exhaust gas density is also calculated based on the air-fuel ratio, so that the exhaust flowrate can be calculated with higher accuracy.
Authors
- Susumu Sato - Tokyo Institute of Technology
- Seiya Abe - Tokyo Institute of Technology
- Ryo Himeno - Tokyo Institute of Technology
- Tsuyoshi Nagasawa - Tokyo Institute of Technology
- Hidenori Kosaka - Tokyo Institute of Technology
- Kotaro Tanaka - Ibaraki University
- Takeshi Tange - NGK Spark Plug Co., Ltd.
Topic
Citation
Sato, S., Abe, S., Himeno, R., Nagasawa, T. et al., "Real-World Emission Analysis Methods Using Sensor-Based Emission Measurement System," SAE Technical Paper 2020-01-0381, 2020, https://doi.org/10.4271/2020-01-0381.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Thompson , G.J. 2014
- Wagner , V. and Rutherford , D. www.ccacoalition.org/ru/file/1549/download?token=AFj7Nk6X 2013
- DieselNet https://www.dieselnet.com/standards/cycles/nte.php
- International Council on Clean Transportation https://theicct.org/sites/default/files/publications/EU-RDE_policy-update_18012017_vF.pdf 2017
- AVL M.O.V.E. Gas PEMS iS http://www.avl.co.jp/service/pdf/MOVE%20iS.pdf
- Yang , J. , Durbin , T.D. , Jiang , Y. , Tange , T. et al. A Comparison of a Mini-PEMS and a 1065 Compliant PEMS for On-Road Gaseous and Particulate Emissions from a Light Duty Diesel Truck Science of the Total Environment 640-641 364 376 2018 10.1016/j.scitotenv.2018.04.383
- Miyazaki , T. , Takada , Y. , and Iida , N. Development of On-Board System to Measure Running Condition and Actual NO x Emissions from Freight Vehicle SAE Technical Paper 2002-01-0613 2002 https://doi.org/10.4271/2002-01-0613
- Takada , Y. , Miyazaki , T. , and Iida , N. Study on Local Air Pollution Caused by NO x from Diesel Freight Vehicle SAE Technical Paper 2002-01-0651 2002 https://doi.org/10.4271/2002-01-0651
- Takada , Y. , Takada , N. , and Iida , N. Transient NO x Characteristics of Freight Vehicles with EGR System in Real Traffic Conditions SAE Technical Paper 2005-01-1619 2005 https://doi.org/10.4271/2005-01-1619
- Kato , N. , Kurachi , H. , and Hamada , Y. Thick Film ZrO 2 NO x Sensor for the Measurement of Low NO x Concentration SAE Technical Paper 980170 1998 https://doi.org/10.4271/980170
- Tan , Y. , Henderick , P. , Yoon , S. , Herner , J. et al. On-Board Sensor-Based NO x Emissions from Heavy-Duty Diesel Vehicles Environmental Science & Technology 53 5504 5511 2019 10.1021/acs.est.8b07048
- Sasaki , H. , Scholl , D. , Parsons , M. , Inagaki , H. et al. Development of an Al 2 O 3 /ZrO 2 - Composite High-Accuracy NO x Sensor SAE Technical Paper 2010-01-0041 2010 https://doi.org/10.4271/2010-01-0041
- Vu , D. , Szente , J. , Loos , M. , and Maricq , M.
- Kawamoto , Y. , Todo , Y. , Shimokawa , H. , Aoki , K. et al. Development of High Accuracy NO x Sensor SAE Technical Paper 2019-01-0749 2019 https://doi.org/10.4271/2019-01-0749
- Nakamura , H. , Asano , I. , Adachi , M. , and Senda , J. Analysis of Pulsating Flow Measurement of Engine Exhaust by a Pitot Tube Flowmeter International Journal of Engine Research 6 1 85 93 2005 10.1243/146808705X7329
- Sato , S. , Yamamoto , T. , Ogawa , T. , and Iizuka , Y. Research on Measurement Method of Exhaust Gas Flow Rate for On-Board Measurement System SAE Technical Paper 2007-01-4080 2007 https://doi.org/10.4271/2007-01-4080
- Yamamoto , T. , Tsutsumi , R. , and Mizushima , N. Inspection of Fuel Consumption and NO x Emission for Heavy-duty Truck by Advanced Digital Tachograph -Measurement of Fuel Consumption and NO x Emission by NO x Sensor Transaction of Society of Automotive Engineers of Japan 46 1 191 198 2015 10.11351/jsaeronbun.46.191 (in Japanese)
- Yamamoto , T. , Tsutsumi , R. , Mizushima , N. , and Watanabe , K. NO x Emission Evaluation for Heavy-Duty Driving on Road by NO x Sensor-Based Portable Emission Measurement System Transaction of Society of Automotive Engineers of Japan 46 5 975 980 2015 10.11351/jsaeronbun.46.975 (in Japanese)