dms500 brochure late '06
TRANSCRIPT
CO2Em
issions
The Engine Emissions Specialists
Raw exhaust sampling
In-cylinder HC measurements *
Cycle-by-cycle HC measurement
On-board capability for RDE *
Intake manifold sampling *
Cold start combustion stability
FIDAK protocol
Two channels as standard
1 ms T10-90% response time
Sub-zero sampling capability *
Fast Response HC Analyzer
0
10
20
30
40
50
0
2,000
4,000
6,000
8,000
10,000
12,000
-5.00 5.00 15.00 25.00
Engine-out HCAverage speed
[HC
] (pp
m C
3 )
Vehi
cle
Spee
d (k
ph)
Time (s)
Split injection strategy and retarded spark timing for rapid catalyst light-off produces poor combustion here
Cold start and run-up to idle
Rich excursion at 1st acceleration
Downsized turbo GDI 1.6 litre, EURO IV passenger car cold start HC emissions
* Some applications require additional hardware
Gas analysers easily configurable*
between test cell and RDE use
Raw exhaust sampling
In-cylinder NOX measurements *
Cycle-by-cycle NOX measurement
On-board capability for RDE *
Scavenging blow-through
CLD
AK protocol
Two channels as standard
2 ms T10-90% response time
Sub-zero sampling capability *
Fast Response NOX Analyzer
[email protected] www.cambustion.com
1.5
1.0
0.5
Engine-out LambdaTailpipe Lambda
Engine-out [NO]Tailpipe [NO]
Throttle Pedal (0-1)
Tailpipe breakthrough of NO due to blow-through at high load/low rpm
Blow-through causing NOX breakthrough: 2.0 Euro 6 turbocharged engine - WLTC
* Some applications require additional hardware
Gas analysers easily configurable*
between test cell and RDE use
Raw exhaust sampling
In-cylinder COX measurements *
Cycle-by-cycle COX measurement
On-board capability for RDE *
EGR measurement
Intake manifold sampling *
NDIR detector
AK protocol
Two channels as standard
8 ms T10-90% response time
Sub-zero sampling capability *
Fast Response CO&CO2 Analyzer
0
4
8
12
16
20
24
121 122 123 124 125 126 127 128-2,400
-2,000
-1,600
-1,200
-800
-400
0CO2 at Intake Port 1CO2 Post EGR ValveAverage Speed (kph/2)EGR Valve Drive Pressure
EGR delay during gear change on a diesel passenger car
Time (s)
EGR
Valve
Driv
e Pr
essu
re (m
bar)
CO
2 (%
) & V
ehic
le S
peed
(kph
/2)
EGR valve closes EGR valve re-opens
EGR valve closes, then re-opens during gear change
~1s delay before EGR reaches intake port
720° single intake stroke
* Some applications require additional hardware
Gas analysers easily configurable*
between test cell and RDE use
CAMBUSTION DMS50 Fast Particulate Size Spectrometer
Nucleation mode burst produced by transient lift-off in real world driving: measured by DMS50 in the plume of the vehicle.
200 ms T10-90% response time
Raw exhaust sampling
5 nm – 2.5 µm size range
Sub-zero sampling
10 Hz data
AK protocolApplications:
Transient engine calibration
PM, PN >10 nm & >23 nm
GPF/DPF development
RDE calibration
Brake particles
Fast Response Particle Analyzer
Particle number, mass & size from one instrument
0.0E+00
5.0E+11
1.0E+12
1.5E+12
2.0E+12
2.5E+12
3.0E+12
0 10 20 30 40 50 60 70 80 90 1000.6
0.7
0.8
0.9
1
1.1
1.2
Air Fuel Ratio excursions cause varying particle emission
End of catalyst heating strategy causes increased particle emission
Vehicle Speed
Advantage of fast response particulate measurements on GDI vehicle
Parti
cle
Num
ber
Pre-catalyst Lambda
Time (s)
Particle Number from Cambustion DMS500Particle Number from Euro 5b system
Pre-catalyst Lambdafrom EUEGO
Applications:
Transient engine calibration
PM, PN >10 nm & >23 nm
GPF/DPF development
RDE calibration
Brake particles
GPF and Light to Heavy duty DPF testing
Soot loaded back - pressuretesting
Regeneration Testing
Ash loading
Filtration Efficiency Measurement
Catalytic Activity Testing
20 g/hr max loading rate
Automated & unattendedoperation
Canned / un - canned filters
Minimal installation requirements
DPF / GPF Testing System
[email protected] www.cambustion.comAUG 2018
Equi
vale
nt ∆
p (n
orm
alise
d to
240
˚C, 2
50 k
g/hr
)
Corrected soot load (g)
Pore filling
Cake filtration
Soot Load Backpressure Measurement
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
500 600 700 800 900 1000 1100 1200 1300 1400 1500Time s
Tem
pera
ture
ºC
front face2"mid filter6"rear face
686460565146403429231712600-6-12-17-23-29-34-40-46-51-56-60-64-68
20-38 38-56
56-74 74-92
92-110 110-128
128-146 146-164
164-182 182-200
200-218 218-236
236-254 254-272
272-290 290-308
308-326 326-344
344-362 362-380
380-398 398-416
416-434 434-452
452-470 470-488
488-506 506-524
524-542 542-560
560-578 578-596
596-614 614-632
632-650 650-668
668-686 686-704
704-722 722-740
740-758 758-776
776-794 794-812
812-830 830-848
848-866 866-884
884-902 902-920
920-938 938-956
956-974 974-992
DPF Internal Temperature Map
inlet
686460565146403429231712600-6-12-17-23-29-34-40-46-51-56-60-64-68
20-38 38-56
56-74 74-92
92-110 110-128
128-146 146-164
164-182 182-200
200-218 218-236
236-254 254-272
272-290 290-308
308-326 326-344
344-362 362-380
380-398 398-416
416-434 434-452
452-470 470-488
488-506 506-524
524-542 542-560
560-578 578-596
596-614 614-632
632-650 650-668
668-686 686-704
704-722 722-740
740-758 758-776
776-794 794-812
812-830 830-848
848-866 866-884
884-902 902-920
920-938 938-956
956-974 974-992
DPF Internal Temperature Map
inlet
Regeneration and soot mass limit testing