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23/09/2014 1
Title:
«ADAMS2CM converter» & «TestManager Automatic Compiler»: from full ADAMS multi-body model to IPG CarMaker Real Time based model.
Revision. 1
Soluzioni Ingegneria (finance code IT02946830136) P.zza Manzoni 11, I-23900 Lecco ITALY
23/09/2014 2
Index
INDEX • The need of ADAMS2CM converter • Structure of ADAMS2CM converter • Results of ADAMS vs CM/TM models comparison • Conclusions, developments and potentials
23/09/2014 3
The need of ADAMS2CM converter
MSC ADAMS is the most diffused Multi Body (MB) tool in the world. It is commonly used for:
MULTI-BODY suspensions design.
Generic bushing effects simulation.
Reaction forces on any structure point.
Virtual test bench for suspensions.
Simulation of subsystems dynamic response.
Design of geometry and dimensions of components.
FEM analysis of chassis.
23/09/2014 4
The need of ADAMS2CM converter
IPG Automotive CarMaker is a real-time based vehicle model suitable for:
Vehicle Dynamics modeling.
Real time HIL applications.
ADAS systems. Traffic interations.
Complex scenarios definition.
Closed loop maneuvers (IPG Driver).
23/09/2014 5
The need of ADAMS2CM converter
A car manufacturer needs to deal with both the two complementary worlds...
For further stages: • Whole vehicle and
subsystems analysis.
• Hardware verification (HIL).
For early process stages: • Whole vehicle
dynamics analysis. • Single subsystems
(no ECUs, no controllers, …)
23/09/2014 6
The need of ADAMS2CM converter
A way to pass from one world to the other is needed…
«ADAMS2CM converter»: - Fast conversion. - Reliable model conversion. - Semi-automated procedure.
…that means time and money saving!
«ADAMS2CM Converter»
23/09/2014 7
Index
INDEX • The need of ADAMS2CM converter • Structure of ADAMS2CM converter • Results of ADAMS vs CM/TM models comparison • Conclusions, developments and potentials
23/09/2014 8
The following subsystems of the vehicle can be converted:
Structure of ADAMS2CM converter
Suspension kinematics and compliance.
Sprung mass.
Steering Powertrain.
Brakes.
Aerodynamics.
Tires.
23/09/2014 9
The following subsystems of the vehicle can be converted:
Structure of ADAMS2CM converter
Suspension kinematics and compliance.
Sprung mass.
Steering Powertrain.
Brakes.
Aerodynamics.
Tires.
Most of the ADAMS
subsystem can be directly converted…
23/09/2014 10
What does it mean «direct» conversion? Here an example about ICE Engine Maps
Structure of ADAMS2CM converter
Suspension kinematics and compliance.
Sprung mass.
Steering
Brakes.
Aerodynamics.
Tires.
ADAMS data: Engine maps CM data: Engine maps
Powertrain.
Direct import of data
ADAMS .pwr file
CM engine GUI
23/09/2014 11
Structure of ADAMS2CM converter
Suspension kinematics and compliance.
Sprung mass.
Steering Powertrain.
Brakes.
Aerodynamics.
Tires.
Suspensions have to be
translated into look-up-tables:
need of a non-direct
conversion…
The following subsystems of the vehicle can be converted:
23/09/2014 12
Structure of ADAMS2CM converter
Sprung mass.
Steering Powertrain.
Brakes.
Aerodynamics.
Tires.
Suspensions steer assembly in ADAMS. CM suspension model
Suspension kinematics and compliance.
What does it mean «non-direct» conversion? Here an example about Suspension Kinematics
- Suspensions and steer analysis in ADAMS.
- Data extraction and conversion,
- creation of CM readable model.
23/09/2014 13
Batch run of simulations.
Test automation with test manager.
Structure of ADAMS2CM converter
The converted model is finally compared with the original one according to customized criteria: Each CarManufacturer defines its own set of
standard maneuvers: - Transient and steady state tests. - Longitudinal and lateral tests.
Each CarManufacturer defines also its own matching evaluation criteria.
Sample screenshot Sample screenshot
23/09/2014 14
In order to increase automation level a new tool has been created: «Test Manager Automatic Compiler» - Automatic generation of complex .ts files. - Increase test manager flexibility. - Create undreds of variations in few seconds.
Structure of ADAMS2CM converter
Test automation with test manager.
23/09/2014 15
In order to increase automation level a new tool has been created: «Test Manager Automatic Compiler» - Automatic generation of complex .ts files. - Increase test manager flexibility. - Create undreds of variations in few seconds.
Sample compiling procedure:
Results of ADAMS vs CM models comparison
Test 1
Test 2
Test n
Test m
…
Test list
Test Selection …
Tests selection from customized list
Par 1 Par 2 … Par X
Automatic Test Manager creation
Parameters adaption
23/09/2014 16
Index
INDEX • The need of ADAMS2CM converter • Structure of ADAMS2CM converter • Results of ADAMS vs CM/TM models comparison • Conclusions, developments and potentials
23/09/2014 17
Results of ADAMS vs CM models comparison
The conversion result is finally verified comparing orginal ADAMS model and CM model.
Each Car Manufacturer defines: - A list of maneuvers to be simulated (steady state,
transient…);. - An appropriated set of parameters for each maneuver
(speed, steer angle, …).
- The indices to be calculated to evaluate the matching of the results;
- A final synthetic index to evaluate the accuracy of conversion process.
23/09/2014 18
Results of ADAMS vs CM models comparison
The conversion result is finally verified comparing orginal ADAMS model and CM model.
Each Car Manufacturer defines: - A list of maneuvers to be simulated (steady state,
transient…);. - An appropriated set of parameters for each maneuver
(speed, steer angle, …).
«Test Manager Automatic Compiler» is be used to automatically generate the test manager for models comparison:
Test 1
Test 2
Test n
Test m
Test list
Test Selection
Par 1 Par 2 … Par X
23/09/2014 19
Results of ADAMS vs CM models comparison
The conversion procedure has been verified together with a big Car Manufacturer.
Below the list of chosen maneuvers:
23/09/2014 20
Results of ADAMS vs CM models comparison
APPLICATION: CarMaker VEHICLE MODEL: Sample car (2 axles) TEST: Open Loop Slow Steering Ramp INPUTS: - Constant reference speed: 60 km/h - Fixed gear: 4° - Steer angle reference signal: 0°-180° ramp
Reference Speed Reference Steer
Spee
d [
km/h
]
Time [s] Time [s]
Stee
r A
ngl
e [d
eg]
23/09/2014 21
Results from CM have been compared with those from ADAMS:
Side slip Angle.
Results of ADAMS vs CM models comparison
(*) numerical values hidden for confidentiallity
NOTE: for confidentiality no details about calculated indices are shown.
23/09/2014 22
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
(*) numerical values hidden for confidentiallity
23/09/2014 23
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces.
(*) numerical values hidden for confidentiallity
23/09/2014 24
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces. Front ground lateral forces
(*) numerical values hidden for confidentiallity
23/09/2014 25
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces. Front ground lateral forces
Front tyre side slip Angle.
(*) numerical values hidden for confidentiallity
23/09/2014 26
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces. Front ground lateral forces
Front tyre side slip Angle.
Front suspensions travel.
(*) numerical values hidden for confidentiallity
23/09/2014 27
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces. Front ground lateral forces
Front tyre side slip Angle.
Front suspensions travel.
(*) numerical values hidden for confidentiallity
23/09/2014 28
Results of ADAMS vs CM models comparison
APPLICATION: CarMaker VEHICLE MODEL: Sample car (2 axles) TEST: Sine with dwell INPUTS: - Constant reference speed: 60 km/h - Throttle release - Sine with dwell steer reference
Reference Throttle Reference Steer
Thro
ttle
[-]
Time [s] Time [s]
Stee
r A
ngl
e [d
eg]
23/09/2014 29
Results from CM have been compared with those from ADAMS:
Side slip Angle.
Results of ADAMS vs CM models comparison
(*) numerical values hidden for confidentiallity
NOTE: for confidentiality no details about calculated indices are shown.
23/09/2014 30
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
(*) numerical values hidden for confidentiallity
23/09/2014 31
Results from CM have been compared with those from ADAMS:
Roll Angle.
Side slip Angle.
Results of ADAMS vs CM models comparison
Front vertical forces.
(*) numerical values hidden for confidentiallity
23/09/2014 32
Results from CM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Front vertical forces. Front ground lateral forces
Roll Angle.
Side slip Angle.
(*) numerical values hidden for confidentiallity
23/09/2014 33
Results from CM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Front ground lateral forces
Front tyre side slip Angle.
Front vertical forces.
Roll Angle.
Side slip Angle.
(*) numerical values hidden for confidentiallity
23/09/2014 34
Results from CM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Front tyre side slip Angle.
Front suspensions travel.
Front vertical forces.
Roll Angle.
Side slip Angle.
Front ground lateral forces
(*) numerical values hidden for confidentiallity
23/09/2014 35
Results from CM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Front suspensions travel.
Front vertical forces.
Roll Angle.
Side slip Angle.
Front tyre side slip Angle.
Front ground lateral forces
(*) numerical values hidden for confidentiallity
23/09/2014 36
Finally the Car Manufacturer defined its own accuacy indicex:
Results of ADAMS vs CM models comparison
«ADAMS2CM converter» (final overall index for all the tests)
Avg. Accuracy Dev.Std.
98.5% 1.5%
23/09/2014 37
Results of ADAMS vs CM models comparison
APPLICATION: TruckMaker VEHICLE MODEL: Sample truck (4 axles) TEST: Sine with dwell INPUTS: - Constant reference speed: 60 km/h - Throttle release - Sine with dwell steer reference
Reference Throttle Reference Steer
Thro
ttle
[-]
Time [s] Time [s]
Stee
r A
ngl
e [d
eg]
23/09/2014 38
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Lateral acceleration.
NOTE: for confidentiality no details about calculated indices are shown.
(*) numerical values hidden for confidentiallity
23/09/2014 39
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
(*) numerical values hidden for confidentiallity
23/09/2014 40
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
1° axle vertical forces.
(*) numerical values hidden for confidentiallity
23/09/2014 41
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
1° axle vertical forces. 1° axle ground lateral forces
(*) numerical values hidden for confidentiallity
23/09/2014 42
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
1° axle vertical forces. 1° axle ground lateral forces
1° axle tyre side slip Angle.
(*) numerical values hidden for confidentiallity
23/09/2014 43
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
1° axle vertical forces. 1° axle ground lateral forces
1° axle tyre side slip Angle.
Front suspensions travel.
(*) numerical values hidden for confidentiallity
23/09/2014 44
Results from TM have been compared with those from ADAMS:
Results of ADAMS vs CM models comparison
Roll Angle.
Lateral acceleration.
1° axle vertical forces. 1° axle ground lateral forces
1° axle tyre side slip Angle.
Front suspensions travel.
(*) numerical values hidden for confidentiallity
23/09/2014 45
Results of ADAMS vs CM models comparison
«ADAMS2CM converter» (final overall index for all the tests)
Avg. Accuracy Dev.Std.
98.0% 2.0%
Finally the Car Manufacturer defined its own accuacy indicex:
23/09/2014 46
Index
INDEX • The need of ADAMS2CM converter • Structure of ADAMS2CM converter • Results of ADAMS vs CM/TM models comparison • Conclusions, developments and potentials
23/09/2014 47
Conclusions, developments and potentials
CONCLUSIONS • mostly all “nowadays” OEM use ADAMS fro vehicle early-stage design; • OEM will continue to exploit ADAMS functionality; • common vision for incoming future is the growing need of RT simulation as well; • a synergy between MB and RT simulation is a “must”;
objective need of a (semi)automatic, reliable ADAMS2CM tool, updated year-by-year as front end of both the simulation to save time and money.
• The Beta-version of the converter tool has been presented. In detail:
o each single ADAMS model’s Subsystem arrangement; o extraction of required quantities; o data translation from ADAMS to CM language; o procedure of conversion results comparison over significant maneuvers.
• The toll reliability has been quantified; conversion precision rises up to more than 98% of matching quality;
• Toll has been already applied both to passenger vehicle (2 axles) and to truck (4 axels).
23/09/2014 48
Conclusions, developments and potentials
WIP • «ADAMS2CM converter» on a pre-
developments stage; • «Test Manager Automatic Self Compiler»:
available in Beta-version, both as stand-alone and integrated in ADAMS2CM tool;
• troubleshooting new application samples, CM integration is now running to converge to release 1.0;
23/09/2014 49
Conclusions, developments and potentials
POTENTIALS • Improvements of IPG software
potential: ADAMS is now communicating with CM!
• IPG products’ potential market; relevant time saving for the conversion procedure.
• Quality of conversion will be delegated.
• Hand conversion no longer required.
• No risk to hand-conversion errors.
• Rapid conversion from ADAMS to CarMaker through a new concept of model database: both ADAMS and CM models will live together and used when necessary!
Vehicle models database: Both ADAMS and CM models will live together
and used when necessary!
23/09/2014 50
“…our mission is to observe market needs, to
design research innovation and transfer achieved
methodologies to partner companies to face to
every-day challenges… ”
Research partnership in technology innovation(SINCE 2004)
Managing Directors: Dr.-Ing. Marco E. Pezzola • Dr. Ing. Elisabetta Leo
VAT code: 02946830136 I-23900 Lecco (ITALY), p.zza Manzoni 11 Phone/Fax: +39.0341.180968 mailto: [email protected]
Soluzioni Ingegneria GROUP
Thanks fro your kindly attention! We wait for you at our demo-stand
for further information!