future of diesel - cenex · focus germany –stuttgart / no2 limit value no2 [µg/m3] annual limit...
TRANSCRIPT
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Future of DieselLow Emission
Low Fuel ConsumptionRealized with affordable Technology
A. KufferathPowertrain Solutions, Engineering System Diesel Powertrain
Robert Bosch GmbH, Stuttgart
Low Carbon Vehicle Event | LCV-cenex 2018 | 12th - 13th September 2018
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Air Quality and EmissionsAgenda / Content
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
View on NO2 ambient air quality situation at Stuttgart “Am Neckartor”
Bosch EU6-RDE testing conditions and demonstrator
EU6-RDE on-road measurements
Transfer of emission results to ambient air quality situation at Stuttgart “Am Neckartor”
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Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Focus Germany –Stuttgart / NO2
Limitvalue
NO2
[µg/m3]
Annual limit 40
Peak limit200(hour value)
Allowed peekexceedances
18 hours
3
Air Quality in Europe
EU-Regulation
In general overall regressive trend for NO2 in GermanyNO2 show only local hot spot exceedances in bigger cities with very dense traffic – no global challenge
Situation @ Stuttgart
Hot spot Stuttgart “Am Neckartor”
AQ - measurement station with:• 70.000 vehicles / day • located at kerbside• few air exchange
1 2 3 4 5 6
Contributions
20
40
60
80
0
PC Diesel
PC Gasoline
LCV + HCVBackground traffic
Background NON traffic
NO2 [µg/m3]
Valu
es 2
015,
LUBW
and
UBA
78
NO2 [µg/m³]
Hot spots with exceedance
73
62
60
58
58
58
56
56
55
Sour
ce: U
BA 2
018,
NO
2va
lues
for y
ear 2
017
0 20 40
München
StuttgartKöln
Reutlingen
Düren
Hamburg
Limburg
Düsseldorf
Kiel
Heilbronn
Ann
ual l
imit
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Bosch EU6-RDE Testing ConditionsTest Cases on Roller Dyno and Public Road
0255075
100
0 500 1000 1500 2000 2500t [s]ve
loci
ty [k
m/h
]
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Challenge Cycle (Bosch internal)
altit
ude
[m]
-300-200-1000100
050
100150200
0 400 800 1200 1600
velo
city
[km
/h]
P1 P2 P3
torq
ue
engine speed
torq
ue
engine speed
torq
ue
engine speed
t [s]
P1 P2 P3
Bosch
Stuttgart urbantrack
Bosch
Stuttgart track
velo
city
[km
/h]
t [s]0 500 1000
150
100
50
4
Transport for LondonWLTC
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Technology for DemonstratorDiesel Powertrain Strategy - Combination of Measures
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Engine 1.7 l / 4 cylPower 110 kWTorque 340 NmPressure 2200 barEGR LP + HP
CRS 2 (2500 bar) + NCC, DI-SCR, VVT?, catalyst technology? and layout, Electrification
Overall system engineering for continuous reduction in emissions
5
EU6-RDE step 1 - 2017/19cf = 2.1NOX: 168 mg/km
EU6-RDE step 2 - 2020/21cf = 1.0 + 0.5NOX: 120 mg/km
EGR system
SW / ECU
Turbo charger
EGT
Additionalcomponents
?
FIE
2013-
2016
2016-
2018
On the way to cf << 1 started2018
✓
✓ SCRDPF
DO
C
AdBlue
SCR+
CuC
lpEG
R
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
0.0
0.5
1.0
1.5
2.0
2.5
Strecke_int [m]0 2 4 6 8 10 12 14 16
0.0
0.5
1.0
1.5
2.0
2.5
Strecke_int [m]0 2 4 6 8 10 12 14 16
Bosch EU6-RDE Testing ConditionsBosch Stuttgart Urban Track, Improved Warm-up Management
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
6
Test track: Stuttgart urban trackDistance: 16 kmAltitude gain: ≈ 1200 m/100 km
Test mass: 1550 - 1850 kgEGT: agedTest cond.: cold start only
Status March 2017 - - -
1Warm-up dominatesemissions
1 2
Acceleration @not optimal
EGT temperature
2
3
High load @ not optimal EGT
temperature
3
NOx[g]
distance (km)
Status August 2017 - - -
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Bosch Stuttgart Track How measurements were made
Urban < 60 km/h Rural 60–90 km/h Motorway 90–145 km/h
Each part must cover about 1/3 of total distance and more than 16 km, total duration: 90 – 120 min.Separate evaluation of total trip and urban part
includingcold start
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Urban Rural Motorway
Bosch internal test:“Stuttgart Track”
Covering of normal traffic situations:
InclineCold start Driving dynamicsPay load
7
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
EU6-RDE On-Road MeasurementsBosch Stuttgart Track
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
SCRDPF
DO
C
AdBlue
SCR
+C
uC
lpEG
R
SCR
Test track: Bosch Stuttgart TrackDistance: 86 kmAltitude gain: 840 m / 100 km
Test mass: 1550 - 1850 kgEGT: agedTest cond.: cold start only
driving style smooth, calm (senseless) dynamic
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0
40
80
120
160
200
6 8 10 12 14 16 18 20 22 24
NOx[mg/km]
v * apos 95
Euro 6d-temp; cf = 2.1
Euro 6d; cf = 1.0 + 0.5
6 – 24°C
-2 – 4°C
start / ambienttemperature
NOx RDE total trip, average: 13 mg/kmNOx urban part only, average: 26 mg/km
cf = conformity factor
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Highway 90 – 145 km / hRural 60 – 90 km / h
inclusive cold start
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
road gradient
cold start
vehiclepayload
driving dynamics
City < 60 km / h
Most relevant for air quality is urban part
EU6-RDE On-Road MeasurementsFocus Bosch „Stuttgart Urban“ Track
16 km
Stuttgart Urban Track
9
Bosch Test: „Stuttgart Urban“, very challenging boundary conditions
alltemperatures
up to max.payload
1200 m / 100 km(upper limit)
wholerange
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
EU6-RDE On-Road MeasurementsFocus Bosch „Stuttgart Urban“ Track
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Test track: Stuttgart urban trackDistance: 16 kmAltitude gain: ≈ 1200 m/100 km
Test mass: 1550 - 1850 kgEGT: agedTest cond.: cold start only
10
driving style (senseless) dynamicSmooth, calm
Dynamic index > regulation limits
0
40
80
120
160
200
6 8 10 12 14 16 18 20 22 24
Euro 6d-temp: cf = 2.1 (current)
Euro 6d: cf = 1.0 + 0.5 (from 2020)
v * apos 95
Start-/ambient temperature15 23 °C5 11 °C 1 4 °C-6 0 °C
cf = conformity factor
NOx[mg/km]
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
EU6-RDE On-Road MeasurementsEmission situation of demo vehicle @ “Am Neckartor”
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis
Bosch Diesel Demonstrator in front of LUBW monitoring station „Am Neckartor“
11
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Transfer of Emission Results to Air QualityEmission and Air Quality Simulation
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
12
Traffic situationtraffic volume & flow
per route section
Fleet compositionincl. fleet renewal
source: TREMOD, Ifeu
Emission factorsper vehicle type
source: HBEFA 3.3
VehicleEmissions
per route sectionand vehicle type
Emission Model Air Quality / Immission Model
Meteorologicalparameters
wind velocity, wind direction, sloar radiation,
temperature
RESULT: Air quality / NO2
per route section
Concentrationsincl. background pollution
NO2, NO, O3
140 thermochemical and 21 photo-chemical reactions taken into account
Powertrain Solutions | PS/ECP | PS/CV-NE | PS/MBC | 13.9.2018396© Robert Bosch GmbH 2018. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Transfer of Emission Results to Air QualityNO2 Air Quality Calculation for Stuttgart “Am Neckartor”
The presentation has been prepared and provided for informational purposes only and strictly on a non-reliance basis.
Σ 87
NO
2Ai
r Qua
lity
Con
tribu
tions
[μg/
m3 ]
20
40
60
80
100
0-
status2015
EU Limit 40 μg/m3
PC Diesel
PC Gasoline
LCV + HCV
Urban traffic background
Urban NON traffic background
The reduction of NOX emissions will result in neglible contribution of Diesel PC to air quality
Σ 30
Scenario BDiesel EU6-lab limitGasoline 20 mg/km
Σ 22
Scenario C„Close to Zero“
10 mg/km
13