case study on 6 cylinder hdd application gt-power model build using frm builder … ·...
TRANSCRIPT
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Case Study on 6 Cylinder HDD Application GT-POWER Model Build using FRM Builder and Running on HiL Platform
byH. B. Chaudhari, Mohak Samant, Sayali Behere, Dr N H Walke
Powertrain Engineering Department (PTE)21st Jan 2019
atPune
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2 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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3 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Assessment of FRM builder approach for engine calibration
• To achieve reasonable accuracy with minimum efforts using FRM
builder, when limited test data is available
• Converting to Real Time model and run on Virtual Test Bed (VTB)
• Run steady state and transient cycle
Objective
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4 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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5 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Simulation Road Testing
front load activities to simulation environment from calibration engineer perspective
Lab
Virtual Testing
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6 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Thermodynamic
NOx-Emission
EMPIRICAL STATIC GLOBAL
HC, CO,Soot, PN …
COMBINEDMODEL
Increased number of
engine specific outputs
Model refinement
Robustness analysis
MiLSetup
Vir
tual
Refined model setup
Engine CylinderEngine Air Path
Calibration ofVarious variants
VTBSetup
Plant Model Development
Concept investigations
Model with limitedmeasurement data
OBD calibration
Vehicular expedition trials
Plant Model Development
Concept investigationsModel with limited measurement data
Base enginetestbed development
DoEMeasurements
Virtual Test Bed (VTB) Workflow
FRM builder approachRT Plant Model
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7 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Level 1
Level 2
Model Accuracy Level
Model Maturity Level Description Usage
Level 1(concept model)
Geometrical data is used for model setup
• H/W concept investigations
• EAS configuration• ECU functionality
Level 2(refined model)
Steady state and transient data is measured for model refinement
• Ambient correction• OBD calibration• Vehicular drivability
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8 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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9 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Approach :FRM Builder
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10 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Following changes carried out on default FRM built
1) Removed EGR system
2) Turbocharger map changed
3) Waste gate controller removed
4) Speed range changed
5) Fuelling controller removed
6) Combustion and emission model tuned with limited
test data
FRM Builder Approach :Changes in Default Model
• Engine 6 cyl HD application• FGT Turbocharger• 1600 bar max injection pressure
• Engine Inputs• Geometrical data• TC map• Through flow
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11 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Main
Intake Exhaust
FRM Builder Approach :Model Build
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12 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
FRM diesel Intercooler
FRM Builder Approach :Model Build
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13 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
FRM Builder Approach :Parameter Acceptance Criteria
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14 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
FRM Builder Approach :Model Accuracy
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15 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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16 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Open LoopECU +
Actuators only
• ECU functionality check
• Feedbacks to ECU- MAP,
Crank, CAM, Rail pressure,
Acc Pedal etc.
• Rail Pressure model
• Injector coordinator- Start
of Injection, Pulse width,
Pilot etc.
Open Loop- ECU and Actuator Setup
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17 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Closed LoopECU +
Actuators + Plant Model
• ECU in loop with RT plant
model
• Feedbacks to ECU from
plant model
• Steady state and transient
operation
Closed Loop- ECU and Actuators with RT Plant Model
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18 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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19 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
VTB Results- Steady State
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20 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
VTB Results- Transient
• Very good correlation wrt Test Data
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21 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
NO Emission Results- Transient
NO variation wrt Test +10.2 %
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22 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Objective
• Virtual Test Bed (VTB) Overview
• FRM Builder Approach for Plant Model Development
• RT Plant Model Setup on VTB
• Results & Comparison
• Summary
Contents
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23 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Summary
The FRM builder approach took very less efforts and time to reachrequired accuracy level
The plant model built with limited test data has shown very goodcorrelation with experimental data at steady state & transient level
The FRM model showed real time compliance and therefore itsusefulness for calibration using VTB approach
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24 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
Acknowledgements
We would like to thank Mr. Daniel Schimmel for FRM model building support
and Mr. Pantelis Dimitrakopoulos for running FRM RT model on HiL
environment, successfully. Also we would like to appreciate support of
Mr. Pavan Chandras for coordination and Mr. Ramnik Singh for allowing us to
present our work in GT India conference.
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25 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
VTB Approach for Calibration
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26 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
• Calibration on real ECU with Real Time models• Same ECU can be taken further for actual testing• Once parent engine rating data is available, derivatives can be calibrated in very short time
VTB Usage
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27 Virtual Calibration Centreyour Partner from Concept to Reality. . .
'GT India Conference 2019'Presented by Hitesh B Chaudhari
H. B. ChaudhariManager, [email protected] 1308/1470
Dr N. H. Walke Deputy Director, [email protected]
P. H. GaikwadVTB integration
M. P. SamantPlant Model Development
Ms. S. R. BehereCalibration
Thank You !
Virtual Test Bed for BS VI, stage IV, V and RDE calibration challenges !