MBD Adoption Trends from a US perspective - MathWorks€¦ · 21 Plant Modeling in support of MBD...
Transcript of MBD Adoption Trends from a US perspective - MathWorks€¦ · 21 Plant Modeling in support of MBD...
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1© 2015 The MathWorks, Inc.
MBD Adoption Trends from a US
perspective
By Kevin Rzemien
Consulting Group, Novi MI
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Agenda
What are MBD industry leaders doing?
Plant Modeling in support of MBD
Virtual Engine Calibration Optimization (VECO)
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What are MBD industry leaders doing?
Adopting MBD at CNH showed a significant decrease in
implementation errors, …
… but also an increase in integration errors.
1Presentation by William Fleming from CNH Industrial
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What are MBD industry leaders doing?
Start with Requirements, not Implementation
1Presentation by William Fleming from CNH Industrial
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What are MBD industry leaders doing?
These facts allowed CNH to realize that they needed to
focus more on developing requirements, architecture
specifications and performing up-front testing.
1Presentation by William Fleming from CNH Industrial
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What are MBD industry leaders doing?
MBD Maturity Framework evaluation in completed in
2013 by MathWorks Consulting
1Presentation by William Fleming from CNH Industrial
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What are MBD industry leaders doing?Key questions from our customers about MBD
What is the current industry maturity?
What are the industry trends?
How do I compare against others?
Am I getting the full value out of my tool investments?
How can I unify and streamline various processes?
How do I improve quality of my designs?
How do I manage organization-wide deployment?
How do I reduce waste in the development life cycle?
How do I minimize risk during deployment?
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Key Features
• Comprehensive measurement of capabilities
• Independently measures each capability
• Applies to any level of expertise
• Applies to any domain
• Independent of process
• Developed by MathWorks while working with leading companies worldwide
• Maturity determined by rating:
• 6 Pillars• 32 Process Groups• 200+ Process Attributes
What are MBD industry leaders doing?Assessment is based on Model-Based Design Maturity Framework™
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0
20
40
60
80
100
Modeling
Simulation and Analysis
Implementation
Verification andValidation
Process, Toolsand Infrastructure
Enterprise Management
What are MBD industry leaders doing?Model-Based Design Maturity Framework™ Results
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What are MBD industry leaders doing?Automotive Industry Current Trends
• Plant modeling to support controls development
• ISO 26262 certification with Model-Based Design
• Further automation of V&V tasks
• AUTOSAR
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What are MBD industry leaders doing?Plant Modeling in support of MBD
“… Many of the practitioners of MBD do not get the full
benefit of MBD because they fail to fully integrate their
modeling of the controls with the model of the
physical system.”2
2Edmund Hodzen from Cummins
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Plant Modeling in support of MBD
Odyne Hybrid Bucket Truck Plant Modeling
1Presentation by Bill Mammen from Odyne
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Plant Modeling in support of MBD
1Presentation by Bill Mammen from Odyne
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Plant Modeling in support of MBD
1Presentation by Bill Mammen from Odyne
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Plant Modeling in support of MBD
Control System Architecture
1Presentation by Bill Mammen from Odyne
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Plant Modeling in support of MBDVehicle Plant Model Overview - HCU Model Structure
Input Processing
HCU Algorithms
Output Processing
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Plant Modeling in support of MBDPlant Model Objectives
1Presentation by Bill Mammen from Odyne
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Plant Modeling in support of MBDSimscape Overview
Simscape™ is being used for modeling each of these components
– Simscape™ is a multidomain physical system modeling environment from MathWorks
– Simscape™ employs a Physical Network approach, where physical connections are made in order to match the structure of the system you are developing Non-causal method with domain-specific physical connections that allow
the energy exchange between physical components to occur.
Allows the plant models to evolve over time without having to modify the overall structure
– Simscape™ also includes the ability to create custom blocks using the object-oriented Simscape modeling language
– In this project, we are utilizing mechanical, electrical, driveline and Power Systems domains
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Plant Modeling in support of MBD Example results: Vehicle Speed [mph]
Simulation
Dyno Data
0 500 1000 1500 2000 2500 3000 3500
-10
0
10
20
30
40
50
60
0 500 1000 1500 2000 2500 3000
0
0.5
1
1.5
2
2.5
3
3.5
4
Difference
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Plant Modeling in support of MBD Example Results: ESS SOC [%]
Simulation
Dyno Data
0 500 1000 1500 2000 2500 3000 3500
70
75
80
85
90
95
100
0 500 1000 1500 2000 2500 3000
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
Difference
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Plant Modeling in support of MBD Summary
Using Simscape™ for Vehicle Plant Model Simulation assists in the development of the vehicle system and controls
Validation of the Plant Model can be done by easily importing Dynamometer and/or Vehicle data into Simulink and comparing against the Simulation results
Simscape™ components can be parameterized with manufacturer's specifications
Simulations can be run in parallel on multicore processors, GPUs, and computer clusters, using Parallel Computing Toolbox™
Models can be parameterized for different vehicle variants, to support different Engine/Transmission combinations, for example
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22© 2015 The MathWorks, Inc.
Virtual Engine Calibration Optimization (VECO)
Cylinder Pressure
Torque
(15 Operating Levels)
Speed (15 Operating Levels)
Ignition
Timing
Fuel
Air/Fuel Ratio
Throttle
Position
Pressure
Turbo Wastegate
AreaPressure
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What Was Engine Calibration?
Sketch Model
Iterate: 4 year delay
“Calibrate” By Adjusting A Few Screws
Build Test
Engine’s Performance
Cannot Be Judged
Until It Is Calibrated
Model and Design
18 day wait
on 1 Core
2hr wait
225 Cores
Model and Calibrate
What Is Advanced Engine Calibration Now?
Model, Experiment, Fit, Optimize
Calibrate 1350 Numbers via DoE, RSM, Numerical Optimization
3 day wait on
64 Cores
Calibrate 1350 Numbers via Numerical OptimizationCalibrate By Adjusting 1350 Numbers
Engineer
Virtual Engine Calibration Optimization (VECO)
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Virtual Engine Calibration Optimization (VECO)Base Engine Calibration Problem Addressed by VECO
Cylinder Pressure
Torque
(15 Operating Levels)
Speed (15 Operating Levels)
Ignition
Timing
Fuel
Air/Fuel Ratio
Throttle
Position
Pressure
Turbo Wastegate
AreaPressure
2
3
1
4
Exhaust Cam Phasing
NOx6
Intake Cam Phasing
5
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Virtual Engine Calibration Optimization (VECO)Calibrations Produced By VECO Process
15 Engine Speeds
X
15 Engine Torques
X
6 Variables
1350 Calibration Values
Engine Controller
Throttle Position
Turbo
Wastegate Area
Ignition Timing Air/Fuel Ratio
2
3
1 4
Exhaust Cam
Phaser6
Intake Cam
Phaser5
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Virtual Engine Calibration Optimization (VECO) Example VECO At One Operating Point
1.5L SI DOHC I4 GDI
Dual VCP Turbo
Application Example
Brake-Specific Fuel Consumption
(BSFC)
Ignition Timing
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Virtual Engine Calibration Optimization (VECO) Parallel Computing Used for 225x Speed-Up
Torque
Speed
Automated Base Engine
Calibration Maps In 2hrs!
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Virtual Engine Calibration Optimization (VECO) Summary
Engine Calibration Is a Major Bottleneck in Engine Design Process
VECO Process For SI Engine Removes Base Calibration Bottleneck
VECO Is Practical For Everyday Use Due To Parallel Computing
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MBD Adoption Related Quotes
“The most important need is the leadership vision”
“An integrated MBD environment impacts many
engineering functions and therefore it is an
organizational challenge”
“Not every organization is willing to take on the risk and
in fact may not even support the initiative”
“Change is difficult”
“Without top level leadership support of the MBD
initiative, it is extremely difficult to make substantial
changes to a large organization”
Quotes of Edmund Hodzen from Cummins
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Accelerating the pace of engineering and science
Thank you for your attention!