Real Driving Emissions in Extended Driving Conditions

The real driving emission (RDE) testing for certification of vehicles is performed in conditions that are well defined in legislation. For emissions inventories and for research, the influences of some extended driving conditions on emissions are an interesting issue. In the present work, some examp...

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Main Authors: Danilo Engelmann, Yan Zimmerli, Jan Czerwinski, Peter Bonsack
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/21/7310
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author Danilo Engelmann
Yan Zimmerli
Jan Czerwinski
Peter Bonsack
author_facet Danilo Engelmann
Yan Zimmerli
Jan Czerwinski
Peter Bonsack
author_sort Danilo Engelmann
collection DOAJ
description The real driving emission (RDE) testing for certification of vehicles is performed in conditions that are well defined in legislation. For emissions inventories and for research, the influences of some extended driving conditions on emissions are an interesting issue. In the present work, some examples of RDE results from two common passenger cars with gasoline and diesel propulsion are given. The varying driving conditions were “winter/summer”, “mild/aggressive”, and “higher altitude/slop”. The driving conditions: “winter”, “aggressive”, and “higher slope/altitude” generally require more energy, cause higher fuel consumption, and therefore, higher CO<sub>2</sub>-emissions. The condition of “winter driving”, especially in the urban type of operation, may cause some longer phases with not enough warmed-up exhaust aftertreatment and consequently some increased gaseous emissions. The DPF eliminates the nanoparticles (PN) independently on the driving conditions. Nevertheless, the DPF regeneration has an influence on the CO<sub>2</sub>-normality of the trip. The CO<sub>2</sub>-normality primary tolerance range can also be exceeded with aggressive driving. The elaborated results confirm the usefulness of the existing legal limits for the driving conditions of RDE homologation tests.
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spelling doaj.art-3e6796cf7e154f9ab337b5f9a52a4cf32023-12-03T13:26:09ZengMDPI AGEnergies1996-10732021-11-011421731010.3390/en14217310Real Driving Emissions in Extended Driving ConditionsDanilo Engelmann0Yan Zimmerli1Jan Czerwinski2Peter Bonsack3AFHB, University of Applied Sciences TI, 2500 Biel-Bienne, SwitzerlandAFHB, University of Applied Sciences TI, 2500 Biel-Bienne, SwitzerlandCJ Consulting, 2562 Port, SwitzerlandFederal Office for the Environment (FOEN), Air Pollution Control and Chemicals Division, 3003 Bern, SwitzerlandThe real driving emission (RDE) testing for certification of vehicles is performed in conditions that are well defined in legislation. For emissions inventories and for research, the influences of some extended driving conditions on emissions are an interesting issue. In the present work, some examples of RDE results from two common passenger cars with gasoline and diesel propulsion are given. The varying driving conditions were “winter/summer”, “mild/aggressive”, and “higher altitude/slop”. The driving conditions: “winter”, “aggressive”, and “higher slope/altitude” generally require more energy, cause higher fuel consumption, and therefore, higher CO<sub>2</sub>-emissions. The condition of “winter driving”, especially in the urban type of operation, may cause some longer phases with not enough warmed-up exhaust aftertreatment and consequently some increased gaseous emissions. The DPF eliminates the nanoparticles (PN) independently on the driving conditions. Nevertheless, the DPF regeneration has an influence on the CO<sub>2</sub>-normality of the trip. The CO<sub>2</sub>-normality primary tolerance range can also be exceeded with aggressive driving. The elaborated results confirm the usefulness of the existing legal limits for the driving conditions of RDE homologation tests.https://www.mdpi.com/1996-1073/14/21/7310emissions at cold startwarm-upRDEportion of idlingstop & go
spellingShingle Danilo Engelmann
Yan Zimmerli
Jan Czerwinski
Peter Bonsack
Real Driving Emissions in Extended Driving Conditions
Energies
emissions at cold start
warm-up
RDE
portion of idling
stop & go
title Real Driving Emissions in Extended Driving Conditions
title_full Real Driving Emissions in Extended Driving Conditions
title_fullStr Real Driving Emissions in Extended Driving Conditions
title_full_unstemmed Real Driving Emissions in Extended Driving Conditions
title_short Real Driving Emissions in Extended Driving Conditions
title_sort real driving emissions in extended driving conditions
topic emissions at cold start
warm-up
RDE
portion of idling
stop & go
url https://www.mdpi.com/1996-1073/14/21/7310
work_keys_str_mv AT daniloengelmann realdrivingemissionsinextendeddrivingconditions
AT yanzimmerli realdrivingemissionsinextendeddrivingconditions
AT janczerwinski realdrivingemissionsinextendeddrivingconditions
AT peterbonsack realdrivingemissionsinextendeddrivingconditions