RDE – REAL DRIVING EMISSIONS – A GAME …RDE...Daniel Baumann, IT RDE – REAL DRIVING EMISSIONS...

Daniel Baumann, IT

RDE – REAL DRIVING EMISSIONS – A GAME CHANGER FOR THE INDUSTRY? Dr. Roland Wanker und Gianluca Vitale AVL List GmbH, Graz

Dr. Roland Wanker, Gianluca Vitale | Instrumentation & Test Systems | 08 Juli 2015 | 2

CONTENT

§  Legislative Context §  RDE in the Calibration Process §  AVL Solutions

§  Road Testing – Measurement Equipment §  Road Testing – Data Postprocessing §  Base Calibration in the Lab §  Simulation – Virtual Calibration

§  Summary


WHAT IS THE DRIVER BEHING RDE?

Presented at the AECC Seminar, May 2015


RDE TIMELINE FOR LIGHT DUTY VEHICLES STATUS OCTOBER 2015

2007 09/2017

REGULATION (EC) 715/2007

Definition of test protocol, RDE testing without limits

RDE in force (gaseous and PN?)

from 09/2017

01/2016

1999

40 CFR § 86.1809

“no defeat device!”

EPA and CARB announce to perform PEMS testing during

certification

09/2015

PEMS Testing as a standard part of the

legislation

PEMS Testing to detect defeat devices

Next…

Next…


CONTENT



§  Summary


POWERTRAIN CALIBRATION EVOLUTION IN THE LAST 20 YEARS

Virtual Calibration

ECU Parameters TCU Electr./Non-powertrain

1

~500

1

1

>30

~50k

>3 Electrification

>50

Months Months

>2

~5k

>2

>6

Months

Speed

Load

2015 2005 1995

Speed

Load

Calibration

Model-based Calibration

Procesess & Models

Methods

ECU Access/Standards


CONTENT



§  Summary

Dr. Roland Wanker, Gianluca Vitale | Instrumentation & Test Systems | 08 Juli 2015 | 8 |

RDE TEST EQUIPMENT

§  AVL M.O.V.E iS System §  GAS PEMS iS §  PN PEMS iS §  EFM iS §  System Control §  Concerto M.O.V.E

Postprocessing


AVL M.O.V.E GAS PEMS

NOx result as function of altitude

~0 m

~1500 m

à  Independence of the measured values from ambient conditions, shocks and vibrations, EMV, … is a pre-requisite for a successful RDE test!


AVL M.O.V.E PN PEMS


AVL ADVANCED DIFFUSION CHARGER TECHNOLGY INFLUENCE OF PARTICLE DIAMETER

Conclusion: The counting efficiency of the AVL Advanced DC is equivalent to PMP systems at typical engine exhaust conditions.


AVL M.O.V.E EXHAUST FLOW METER

4550 4600 4650 4700 4750 4800 4850 4900 4950 5000 5050 5100Time [s]

AVL4

95_E

xhau

stG

asFl

owM

ass

[kg/

h]

0

50

100

150

200

250

300

350

400

450

500

550

600

AVL495_ExhaustGasFlowMassOBD_ExhaustFlow


AVL M.O.V.E IS SYSTEM VERIFICATION

Pollutant [g/km]

AVL M.O.V.E iS

CVS Diff absolute

Diff [%]

CO2 202,23 204,7 -2,47 -1,2

CO 0,08 0,073 0,007 10,2

NOx 0,066 0,062 0,004 6,6

AVL M.O.V.E iS System

CVS System

WLTC result for 4 cylinder Diesel engine vehicle (*) real vehicle/brand is not shown

(*)

(*)

Note: These results are below the legislative requirements by a factor 2-5.


RDE TEST EXECUTION

HOW TO GET A VALID TEST? TRIP REQUIREMENTS…


RDE TEST PROCEDURE

Temperature -7°C to 35°C

Altitude up to 1350 m

Trip / Driver City (34%) / Rural (33%) / Motorway (33%), up to 160 km/h, 90-120 min

Load no „empty“ vehicle, heating or air condition on


AVL CONCERTO MOVE POSTPROCESSING

Highway

Rural

City


AVL Concerto PEMS Postprocessing



CONTENT



§  Summary


CAMEO RDE OPTIMIZATION IN 4 STEPS

Smooth Optimization

& Cycle Prediction •  Smoothing

constraints during optimization

•  Maps ready to be used

Cycle Optimization Smooth Maps

Active DoE

•  Auto-adaption of test points for best model quality

•  No additional iterations needed

Online Test Adaption

Automatic Modeling

•  Automatic generation of models direct from raw data.

•  No expert knowledge •  Expert interaction still

possible

One-Click Modeling

Cycle analysis

•  Automatic clustering of cycle data

•  Easy generation of test points

Easy Test Generation


CONTENT



§  Summary


EU4 / EU5 EU6 / RDE EU2 / EU3 EU3 / EU4

Polynomial Model

Models

Neural Network

Best Point

FF

AR

EA O

F O

PTI

MIZ

ATI

ON

NUMBER OF VARIATION PARAMETERS

Real Driving

Global

Experimental Designs

Semi- Physical

Local

EVOLUTION OF MODEL-BASED CALIBRATION TOWARDS VIRTUAL CALIBRATION


AVL VIRTUAL TEST FIELD


SUMMARY

Chassis Dyno Hardware in the Loop

§  Being „RDE Ready“ is truly a Challenge!

§  We take care …

RDE – REAL DRIVING EMISSIONS – A GAME …RDE...Daniel Baumann, IT RDE – REAL DRIVING EMISSIONS...

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