emissions measurement in the lab - on the road rheinland… · motivation for rde implementation 6...
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22.09.2016 Emissions measurementIn the lab - on the road
TÜV Pfalz Verkehrswesen GmbH TÜV Rheinland Group
Emission Test LaboratoryLambsheim Germany
Jiri Vejsada
EMISSIONS MEASUREMENTIN THE LAB - ON THE ROAD
Jiri Vejsada
Emission test laboratory
Lambsheim, Germany
22.09.2016
Emissions Measurement on light duty vehicles
2
Comission Regulation no 715/2007 and 692/2008 - Laboratory test (Euro 5/6)2016/646 - Road test (Euro 6b,c,d)
Laboratory – Test
Driving cycle on roller bench
NEDC WLTC
Road – Test
RDE –Real Driving Emissions
RDE
Emissions measurementIn the lab - on the road
22.09.2016
Laboratory Test
Emissions measurementIn the lab - on the road3
Emission standard: Euro 1 – Euro 6d 1991 – today
NEDC 1991 – 2018 (?)WLTC 2016 – … (basis for RDE)
2018 – … (compl. type approval)
Temperature range: 20 - 30°C
Laboratory test is also basis for CO2 and Fuel Consumption determination
22.09.2016
Road Test
Emissions measurementIn the lab - on the road4
Emission standard: Euro 6b+c 2016 (monitoring phase)Euro 6d 2017 (emission limits)
Temperature range: 0 - 30°C (-7 - 35°C)
Trip duration: ca. 105 min.(90-120 min.)
Distance: 83 km
Dist. share urban: 37%Dist. share rural: 32%Dist. share motorway: 31%(34%, 33%, 33% ± 10%)
Maximum altitude: 280 m(< 700 m)
22.09.2016
Emission limits
Emissions measurementIn the lab - on the road5
Exhaustcomponent
mg/km#/km (PN)
LimitsLaboratory testEuro 6
LimitsRoad testEuro 6d temp.
01. Sept. 2017
Limits Road testEuro 6d
01.Jan. 2020
Gasoline Diesel Gasoline Diesel Gasoline Diesel
CO 1000 500 tbd tbd
HC 100
NMHC 68
NOx 60 80 126(CF 2.1)
168(CF 2.1)
90(CF 1.5)
120(CF 1.5)
PM 4.5 4.5
PN 6.0 E11 6.0 E11 tbd tbd
22.09.2016
Motivation for RDE Implementation
6Emissions measurementIn the lab - on the road
NEDC80 mg/km
RDE160 – 800 mg/km
Reduction of large discrepancy between NOx-Emissions fromDiesel vehicles in the laboratory and on the road.
RDE measurement is a suitable method to reveal the use of„defeat devices“.
22.09.2016
Factors of Influence in Real Driving
7Emissions measurementIn the lab - on the road
Temperature
Road grade
Road cornering
Road surfaceTraffic
Wind
Driver
Auxiliary devices
22.09.2016
RDE Test Procedure
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Data evaluation
Road test
Installation of PEMS
Roller test
Emissions measurementIn the lab - on the road
22.09.2016
RDE Data Evaluation
Emissions measurementIn the lab - on the road9
Validity check of RDE tripBasis: Requirements of the Regulation on RDE trip
Normality check of driving style in RDE testBasis: tool provided by the Regulation,
based on the CO2 data obtained from the WLTC- and RDE-test
Calculation of emission resultsBasis: tool provided by the Regulation,
emission data measured beyond „normal“ driving situationsare not considered or „weighted“
22.09.2016
RDE Procedure – Definition of CO2 Characteristic Curve
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0
20
40
60
80
100
120
140
0 300 600 900 1200 1500 1800
ve
hic
le s
pe
ed
[k
m/h
]
time [s]
highmiddle extra highlow
WLTC
P1: CO2 / avg speed - low phaseP2: CO2 / avg speed - high phaseP3: CO2 / avg speed – ex.high phase
P1
P2 P3
Emissions measurementIn the lab - on the road
22.09.2016
RDE Test Result
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RDEroute 1
Emissions measurementIn the lab - on the road
22.09.2016
RDE Routes
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RDE route 1
RDE route 2
Emissions measurementIn the lab - on the road
22.09.2016
RDE - Verification of Test Normality
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RDE route 1
RDE route 2
Test 1 Test 2
Test 1
Test 1
Test 1
Driver 1 Driver 2
Driver 1 Driver 2
Emissions measurementIn the lab - on the road
22.09.2016
Test Results vehicle X
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Test Laboratory RDE
CO[mg/km]
NOx[mg/km]
CO2[g/km]
CO[mg/km]
NOx[mg/km]
CO2[g/km]
NEDC 113 65 122
LimitEuro 6b
500 80 approved119
RDEroute 1
-- -- -- 37 332 167 CF (NOx) = 4,2
RDEroute 1
-- -- -- 41 411 165 CF (NOx) = 5,1
RDEroute 2
-- -- -- 78 394 169 CF (NOx) = 4,9