Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/9469 |
Resumo: | The need to verify vehicle emissions in real world operation led to the implementation of Real Driving Emissions (RDE) test procedures, effective since September 2017 for new Euro 6 cars following the Commission Regulation (EU) 2016/427, which defines the RDE test conditions and data analysis methods to allow representative results. Main factors addressed by the regulation include the share of driving operation, ambient temperature range, altitude and elevation difference. However, RDE is still debatable since not only boundary conditions but also the evaluation methods and trip selection are being discussed together with a carbon dioxide (CO2) regulation, which is planned to be implemented in the short term. Thus, this work focuses on analyzing the effect of different data measurement and analysis methods (i.e. cold operation, road grade, trip selection and driving style) on CO2 and nitrogen oxides (NOx) emissions based on 13 RDE tests performed in the Lisbon Metropolitan Area, Portugal. The tests were conducted by 2 drivers using 5 vehicles. Each driver performed 2 trips per vehicle, one in normal driving and other in aggressive driving. A Portable Emissions Measurement System (PEMS) was used to collect 1 Hz data, which was compared and analyzed using the European Commission (EC) proposed method for RDE tests. Results show the effects of each parameter such as average difference between drivers (7% in CO2 and 55% in NOx emissions) and between aggressive and normal driving. For road grade, big oscillations happen during the slope profile, which impacts emissions during all trips. Considering cold-operation, CO2 and NO emissions are, on average, similar to 25% and 55% higher, respectively, than in hot-operation. These results highlight the need for deeper studies on these factors to assure that RDE tests evolve to a more established certification procedure than laboratorial certifications. (C) 2018 Elsevier BM. All rights reserved. |
id |
RCAP_aa2c3f08ee92fc3e3e1fe7e54e320415 |
---|---|
oai_identifier_str |
oai:repositorio.ipl.pt:10400.21/9469 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissionsReal driving emissionsPortable emission measurement systemsFuel use and emissionsTesting boundary conditionsData analysis methodsEmissões reais de conduçãoThe need to verify vehicle emissions in real world operation led to the implementation of Real Driving Emissions (RDE) test procedures, effective since September 2017 for new Euro 6 cars following the Commission Regulation (EU) 2016/427, which defines the RDE test conditions and data analysis methods to allow representative results. Main factors addressed by the regulation include the share of driving operation, ambient temperature range, altitude and elevation difference. However, RDE is still debatable since not only boundary conditions but also the evaluation methods and trip selection are being discussed together with a carbon dioxide (CO2) regulation, which is planned to be implemented in the short term. Thus, this work focuses on analyzing the effect of different data measurement and analysis methods (i.e. cold operation, road grade, trip selection and driving style) on CO2 and nitrogen oxides (NOx) emissions based on 13 RDE tests performed in the Lisbon Metropolitan Area, Portugal. The tests were conducted by 2 drivers using 5 vehicles. Each driver performed 2 trips per vehicle, one in normal driving and other in aggressive driving. A Portable Emissions Measurement System (PEMS) was used to collect 1 Hz data, which was compared and analyzed using the European Commission (EC) proposed method for RDE tests. Results show the effects of each parameter such as average difference between drivers (7% in CO2 and 55% in NOx emissions) and between aggressive and normal driving. For road grade, big oscillations happen during the slope profile, which impacts emissions during all trips. Considering cold-operation, CO2 and NO emissions are, on average, similar to 25% and 55% higher, respectively, than in hot-operation. These results highlight the need for deeper studies on these factors to assure that RDE tests evolve to a more established certification procedure than laboratorial certifications. (C) 2018 Elsevier BM. All rights reserved.ElsevierRCIPLVarella, Roberto A.Faria, MartaMendoza-Villafuerte, PabloBaptista, PatriciaSousa, LuísDuarte, Gonçalo2019-02-08T09:45:49Z2019-03-252019-03-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/9469engVARELLA, Roberto A.; [et al] – Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions. Science of the Total Environment. ISSN 0048-9697. Vol. 658, (2019), pp. 879-8940048-969710.1016/j.scitotenv.2018.12.053metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:58:11Zoai:repositorio.ipl.pt:10400.21/9469Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:18:02.270030Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
title |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
spellingShingle |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions Varella, Roberto A. Real driving emissions Portable emission measurement systems Fuel use and emissions Testing boundary conditions Data analysis methods Emissões reais de condução |
title_short |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
title_full |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
title_fullStr |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
title_full_unstemmed |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
title_sort |
Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions |
author |
Varella, Roberto A. |
author_facet |
Varella, Roberto A. Faria, Marta Mendoza-Villafuerte, Pablo Baptista, Patricia Sousa, Luís Duarte, Gonçalo |
author_role |
author |
author2 |
Faria, Marta Mendoza-Villafuerte, Pablo Baptista, Patricia Sousa, Luís Duarte, Gonçalo |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Varella, Roberto A. Faria, Marta Mendoza-Villafuerte, Pablo Baptista, Patricia Sousa, Luís Duarte, Gonçalo |
dc.subject.por.fl_str_mv |
Real driving emissions Portable emission measurement systems Fuel use and emissions Testing boundary conditions Data analysis methods Emissões reais de condução |
topic |
Real driving emissions Portable emission measurement systems Fuel use and emissions Testing boundary conditions Data analysis methods Emissões reais de condução |
description |
The need to verify vehicle emissions in real world operation led to the implementation of Real Driving Emissions (RDE) test procedures, effective since September 2017 for new Euro 6 cars following the Commission Regulation (EU) 2016/427, which defines the RDE test conditions and data analysis methods to allow representative results. Main factors addressed by the regulation include the share of driving operation, ambient temperature range, altitude and elevation difference. However, RDE is still debatable since not only boundary conditions but also the evaluation methods and trip selection are being discussed together with a carbon dioxide (CO2) regulation, which is planned to be implemented in the short term. Thus, this work focuses on analyzing the effect of different data measurement and analysis methods (i.e. cold operation, road grade, trip selection and driving style) on CO2 and nitrogen oxides (NOx) emissions based on 13 RDE tests performed in the Lisbon Metropolitan Area, Portugal. The tests were conducted by 2 drivers using 5 vehicles. Each driver performed 2 trips per vehicle, one in normal driving and other in aggressive driving. A Portable Emissions Measurement System (PEMS) was used to collect 1 Hz data, which was compared and analyzed using the European Commission (EC) proposed method for RDE tests. Results show the effects of each parameter such as average difference between drivers (7% in CO2 and 55% in NOx emissions) and between aggressive and normal driving. For road grade, big oscillations happen during the slope profile, which impacts emissions during all trips. Considering cold-operation, CO2 and NO emissions are, on average, similar to 25% and 55% higher, respectively, than in hot-operation. These results highlight the need for deeper studies on these factors to assure that RDE tests evolve to a more established certification procedure than laboratorial certifications. (C) 2018 Elsevier BM. All rights reserved. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-02-08T09:45:49Z 2019-03-25 2019-03-25T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/9469 |
url |
http://hdl.handle.net/10400.21/9469 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
VARELLA, Roberto A.; [et al] – Assessing the influence of boundary conditions, driving behavior and data analysis methods on real driving CO2 and NOx emissions. Science of the Total Environment. ISSN 0048-9697. Vol. 658, (2019), pp. 879-894 0048-9697 10.1016/j.scitotenv.2018.12.053 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133443874881536 |