Soluzioni Ingegneria (finance code IT02946830136) P.zza Manzoni 11, I-23900 Lecco ITALY Title: «ADAMS2CM converter» & «TestManager Automatic Compiler»: from full ADAMS multi-body model to IPG CarMaker Real Time based model. Revision. 1 23/09/2014 1
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 2
The need of ADAMS2CM converter MSC ADAMS is the most diffused Multi Body (MB) tool in the world. It is commonly used for: Design of geometry and dimensions of MULTI-BODY suspensions design. components. Simulation of subsystems Generic bushing dynamic effects simulation. response. Virtual test Reaction forces bench for on any suspensions. FEM structure analysis point. of chassis. 23/09/2014 3
The need of ADAMS2CM converter IPG Automotive CarMaker is a real-time based vehicle model suitable for: Closed loop maneuvers (IPG Driver). Vehicle Dynamics modeling. Complex scenarios definition. Real time HIL applications. ADAS systems. Traffic interations. 23/09/2014 4
The need of ADAMS2CM converter A car manufacturer needs to deal with both the two complementary worlds... For early process stages: For further stages: • • Whole vehicle Whole vehicle and dynamics analysis. subsystems • Single subsystems analysis. • (no ECUs, no Hardware controllers, …) verification (HIL). 23/09/2014 5
The need of ADAMS2CM converter A way to pass from one world to the other is needed … «ADAMS2CM Converter» «ADAMS2CM converter» : - Fast conversion. - Reliable model conversion. - Semi-automated procedure. … that means time and money saving! 23/09/2014 6
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 7
Structure of ADAMS2CM converter The following subsystems of the vehicle can be converted: Aerodynamics. Suspension kinematics and compliance. Brakes. Sprung mass. Steering Powertrain. Tires. 23/09/2014 8
Structure of ADAMS2CM converter The following subsystems of the vehicle can be converted: Aerodynamics. Suspension kinematics and compliance. Most of the ADAMS Brakes. subsystem can Sprung mass. be directly converted … Steering Powertrain. Tires. 23/09/2014 9
Structure of ADAMS2CM converter What does it mean «direct» conversion? Here an example about ICE Engine Maps Aerodynamics. ADAMS data: Engine maps Suspension kinematics and compliance. Brakes. ADAMS Sprung mass. .pwr file Direct CM data: Engine maps import of data Steering Powertrain. Tires. CM engine GUI 23/09/2014 10
Structure of ADAMS2CM converter The following subsystems of the vehicle can be converted: Aerodynamics. Suspension kinematics and compliance. Suspensions have to be translated into Brakes. look-up-tables: Sprung mass. need of a non-direct conversion … Steering Powertrain. Tires. 23/09/2014 11
Structure of ADAMS2CM converter What does it mean «non-direct» conversion? Here an example about Suspension Kinematics Aerodynamics. Suspensions steer assembly in ADAMS. Suspension kinematics and compliance. Brakes. Sprung mass. CM suspension model - Suspensions and steer analysis in ADAMS. - Data extraction Steering Powertrain. and conversion, Tires. - creation of CM readable model. 23/09/2014 12
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. Batch run of Test automation simulations. with test manager. Sample screenshot Sample screenshot Each CarManufacturer defines also its own matching evaluation criteria. 23/09/2014 13
Structure of ADAMS2CM converter 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. Test automation with test manager. 23/09/2014 14
Results of ADAMS vs CM models comparison Par 1 Par 2 … Par X 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: Tests selection from … customized list Automatic Test Manager creation … Parameters adaption 23/09/2014 15
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 16
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 17
Results of ADAMS vs CM models comparison The conversion result is finally verified comparing orginal ADAMS model and CM model. Par 1 Par 2 … Par X 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, …). 23/09/2014 18
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 19
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 Steer Reference Speed Steer Angle [deg] Speed [km/h] Time [s] Time [s] 23/09/2014 20
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. NOTE: for confidentiality no details about calculated indices are shown. (*) numerical values hidden for confidentiallity 23/09/2014 21
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. (*) numerical values hidden for confidentiallity 23/09/2014 22
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 23
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. Front ground lateral forces Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 24
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. Front tyre side slip Angle. Front ground lateral forces Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 25
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Front suspensions travel. Roll Angle. Front tyre side slip Angle. Front ground lateral forces Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 26
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Front suspensions travel. Roll Angle. Front tyre side slip Angle. Front ground lateral forces Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 27
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 Steer Reference Throttle Steer Angle [deg] Throttle [-] Time [s] Time [s] 23/09/2014 28
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. NOTE: for confidentiality no details about calculated indices are shown. (*) numerical values hidden for confidentiallity 23/09/2014 29
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. (*) numerical values hidden for confidentiallity 23/09/2014 30
Results of ADAMS vs CM models comparison Results from CM have been compared with those from ADAMS: Side slip Angle. Roll Angle. Front vertical forces. (*) numerical values hidden for confidentiallity 23/09/2014 31
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