dr. r. teichmann avl list gmbh, graz, austria · dr. r. teichmann avl list gmbh, graz, austria. ......
TRANSCRIPT
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Real-Life Measurements as Precondition for realistic Test bed Tests
Dr. R. TeichmannAVL List GmbH, Graz, Austria
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Everybody
knows it…
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Recalls
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Everybody
knows it…
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Learning
Improving
Experience
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Recalls?
Learning
Improving
Experience
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Is there a possibility to reduce recalls in future?
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Torque Vectoring Toyota
Hybrid Systemse CVTTTR Hybrid (e4WD)
Powertrain Complexity
1980 2000 2010
Pow
ert
rain
Com
ple
xity
Standard Configuration
20xx
Active 4WD Systems
Active Transmissions
Calendar Year
Electrical Drivinge-Motor for each Wheel
Inte
gra
tion W
ork
Development time and costs
Hybrid Systemse-Motor on front Wheels
Porsche
Driver Assistant and Vehicle Safety Systems
Example Audi Controlling Sportdifferential (Torque Vectoring)
Source: Vortrag Audi CTi Berlin 2009
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Hardware on Testbed
Maneuver Based Testing with AVL InMotion
Powered by CarMaker
Real-Time Simulation AVL InMotionTM
Vehicle REALPowertrain REAL
ViL-, PiL - Configuration
AVL InMotion“Virtual Test Driving”
Real:
� Stiffness of all Components
� Inertia of all Components
� Switching delay of all Components
Simulationcomparable
measurements
and
real boundary
conditions
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Hardware on Testbed
Maneuver Based Testing with AVL InMotion
Vehicle REALPowertrain REAL
ViL-, PiL - Configuration
AVL InMotion“Virtual Test Driving”
Real:
� Stiffness of all Components
� Inertia of all Components
� Switching delay of all Components
Simulationcomparable
measurements
and
real boundary
conditionsPowered by CarMaker
Real-Time Simulation AVL InMotionTM
ViL – Vehicle-in-the-Loop Testbed
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Maneuver Based Testing with AVL InMotion
AVL InMotion“Virtual Test Driving”
PiL – Powertrain-in-the-Loop Testbed
Powered by CarMaker
Real-Time Simulation AVL InMotionTM
Simulationcomparable
measurements
and
real boundary
conditions
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Values from On Road Testing to Simulation and Test Bed
Source: Mercedes Benz
The mobile measurement platform AVL M.O.V.E
brings real-life values from ROAD TO RIG
Road
Simulation Test Bed
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AVL M.O.V.E – The Products
� AVL M.O.V.E SYTEM CONTROL
� AVL M.O.V.E DRICON
� AVL M.O.V.E SMART-FEM
� AVL M.O.V.E PM PEMS
� AVL M.O.V.E GAS PEMS
� AVL Concerto PEMS
� AVL M.O.V.E IndiMicro
� AVL DRIVE
� AVL KMA Mobile
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The Benefit – An Example
http://www.automotiveaddicts.com/707/bmw-m3-recalled-due-to-dct-transmission-issue
Okay, so this is very reminiscent of the big recall BMW had on the previous generation E46 BMW M3
for a rod bearing in the years 2001 to 2003.5. Now all new BMW M3’s with a DCT Transmission have
been recalled which tally’s to about 2500 cars. Although this is not near as big as the E46 recall, many
enthusiasts who purchased or ordered a new BMW M3 with the DCT Transmission will now have
“that feeling” in their gut on whether or not this car is “reliable”. The issue occurs when the car is in a
near panic stop/breaking. The transmission will attempt to downshift several times to the point where
it causes the engine to stall. The good news about this recall is that it is resolved with a software
update. You would think that automakers would get the DCT/Dual Clutch setup right by now; it is not
as if about half of the automakers are coming out with their own version of a dual clutch setup.
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Real-Life-Measurements at the Test Bed
Test Bed
real maneuvers
real measurementssimulated reality
Exact repeatability
of maneuvers
AVL InMotion AVL M.O.V.E
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DCT Transmission - Handbrake U-Turn
Results Vehicle vs. Testbed
Important Test for the Checking of the clutch management of a DCT
� Checking of the Clutch Controlling
� Results at early Stages in the Development Phase
� No Driver Effect
� 100% Reproducibility
Maneuver Definition
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Is there a possibility to reduce recalls in future?
Yes!
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AVL REAL-LIFE TESTING:TURNING KNOWLEDGE INTO KNOW-HOW.
AVL Real Life Testing closes the loop between simulation and reality.
Step-by-step simulation results are validated by integrating real-life data from on-board measurement.
The new integrative learning platform AVL Real-Life Testing builds a continuous framework over the complete vehicle development process for
systematically turning simulation knowledge into validated know-how.
VALIDATION
SIMULATION
On-Board Testing
AVL M.O.V.E
Real-Life Simulation
AVL InMotion