calibration bus story mats ivarson calibration and ... · behavior to pass emission certification...
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Mats Ivarson
AVL List GmbH (Headquarters)
Public
CALIBRATION BUS STORY
Calibration and Development Engineer view
Mats Ivarson | XC | 05 November 2016 | 2Public
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DIESEL PASSENGER CAR DEVELOPMENT
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Mats Ivarson | XC | 05 November 2016 | 3Public
THE FUNCTIONALITY OF A LEAN NOX TRAP
Mats Ivarson | XC | 05 November 2016 | 4Public
The emission cycle is close to stationary
-> No need to calibrate transient emission behavior to pass emission certification
Transient activities mainly done in vehicles
- Drivability
- Response
- Governor tuning – boost pressure, idle control
The transient tuning only required signals from the application system (e.g. INCA)
TRANSIENT ACTIVITIES IN TESTBED: EURO-5
Mats Ivarson | XC | 05 November 2016 | 5Public
The emission cycle is still close to stationary
The Lean Nox Trap requires rich pulses to be regenerated. A new engine operating mode is introduced -> De-NOx
The operating mode cannot be run stationary due to high smoke values, temperatures etc.
-> The common steady-state based development process cannot be used – Affecting both mappings and calibration activities.
-> Signals from all systems required: Application system (e.g. INCA), Emission benches, Automation System, Indicating system.
TRANSIENT ACTIVITIES IN TESTBED: EURO-6B
Mats Ivarson | XC | 05 November 2016 | 6Public
The emission cycle is transient
Real Driving Emissions (RDE) has to be considered.
The exhaust after treatment system is in many times consisting of both LNT and SCR.
The transient behavior of the emissions must be taken into account for the emission calibration, also in the testbed.
-> Requiring new development methods and a high performant data acquisition system.
TRANSIENT ACTIVITIES IN TESTBED: EURO-6D
Mats Ivarson | XC | 05 November 2016 | 7Public
TESTBED SETUP WITH SUITE 2012
AVL CAMEO
AVL IndiCom
AVL PUMA Open
ApplicationSystem
AVL Santorin
ECU
Server Database
Stationary Data
Recorder Data.dat files
Recorder Data.dat files
Stationary Data
Engine synchron Datai-Files
10Hz
20Hz 10Hz
10Hz
1000 channels100kS/s
300 channels10Hz
Setup dependent of task and user
Limited interface performances
Distributed data collection and storage
A change in any of the systems required an expert in each of them
LimitationsData storageExperts
Data merge
Time synch
Dependency
Reusability
Reproducibility
Error-prone
Mats Ivarson | XC | 05 November 2016 | 8Public
TESTBED SETUP WITH TEAM SUITEREADY FOR THE FUTURE!
Setup independent of task and user
Single data collection and storage
High interface performance
Changes propagates from one system to another
Extensive support of meta data
AVL CAMEO 3TM
AVL IndiCom 2TM
AVL PUMA Open 2TM
ApplicationSystem
AVL Santorin
Host
ECU
1000Hz2000 channels200kS/sEngine synchron
Limits, Formulas & Recorder in Real Time in PUMA
Engine synchron
2500 channels300kS/smdf4.1
i-Filesmdf4.1Stationary data…
Mats Ivarson | XC | 05 November 2016 | 9Public
Central calibration task parametrization - CAMEO
Central data collection – PUMA Open
Central data storage - Santorin
Central data evaluation - Concerto
AVL CAMEO 3TM
AVL IndiCom 2TM
AVL PUMA Open 2TM
ApplicationSystem
AVL Santorin
5™
ECU
One data source
Time synched
Independent
Reusable
Reproducible
Error-proof
TESTBED SETUP WITH TEAM SUITEREADY FOR THE FUTURE!