building a digital twin of the vehicle powertrain with ...€¦ · building a digital twin of the...
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1© 2017 The MathWorks, Inc.
Building a Digital Twin of the Vehicle Powertrain with
MATLAB and Simulink
Arvind Hosagrahara
Principal Pilot Engineer
[email protected] (310-819-3960)
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What is a Digital Twin?
Digital twins refer to computerized
companions of physical assets that
can be used for various
purposes.[1]
– Digital twins use data
from sensors installed on physical
objects to represent their near real-
time status, working condition or
position.
– Digital twins can be also used
for monitoring, diagnostics and
prognostics.
Descriptive Prognostic
Diagnostic Prescriptive
[1] https://en.wikipedia.org/wiki/Digital_Twins
High
Fidelity
Physics-based
Statistical
Lower
Fidelity(functional)
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Problem Statement:
One of my test vehicles is showing a statistically significant loss in Fuel
Economy on the FTP75 lab performance test in the Vehicle Emissions Lab
(VEL) using a near production calibration.
▪ Reduction of technician diagnostic time through Simulation
▪ Simulation at scale in the Cloud
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Agenda
The Solution:
▪ Demonstration of a Simulink Digital Twin of a vehicle to tackle the problem
Zooming out a bit:
▪ Big Picture - the MathWorks Fleet and Data pipelines
▪ Engineering model based design meets IT-powered scalability on the cloud
▪ Demonstration of a Cloud based parallelized simulation
Tying it all together:
▪ Challenges
▪ Takeaways: Data Driven modeling meets Physics based Simulation
▪ Conclusions and Questions
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Key Challenges
▪ Expression of digital twin models that dovetail with IT infrastructure
▪ Scalability of Simulation
▪ Storage, Security and Analytics
▪ Platform Fragmentation (and lack of Technical Standards)
• Wieland, Ken (25 February 2016). "IoT experts fret over fragmentation". Mobile World.
• Wallace, Michael (19 February 2016). "Fragmentation is the enemy of the Internet of Things". Qualcomm.com.
• Ardiri, Aaron (8 July 2014). "Will fragmentation of standards only hinder the true potential of the IoT industry?". evothings.com.
• "IOT Brings Fragmentation in Platform" (PDF).
• Raggett, Dave (27 April 2016). "Countering Fragmentation with the Web of Things: Interoperability across IoT platforms" (PDF). W3C.
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Demo of a Digital Twin
(built with the Powertrain Blockset) New!
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The Big Picture - Internet of Things (IoT) demonstrator
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The MathWorks Fleet of connected vehicles (Novi, MI)
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The MathWorks Fleet of connected vehicles (Boston, MA)
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The MathWorks Fleet of connected vehicles (Bay Area, CA)
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The MathWorks Fleet of connected vehicles (Pune, India)
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Conceptual Implementation of the Fleet Demonstrator
Batch (Big Data Analytics)
Real-Time (Fast Analytics)
Data Storage
Historical Results / View
Serving Layer
Incoming Data
• Datastore
• Tall Arrays
• Tall on Spark
• PCT/MDCS
MATLAB Production Server
Reports
Dashboards
Applications
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Integrating MATLAB / Simulink with the IT stack
Connected
Cars
(endpoints)
Gateway Platform Applications
Data
Ingest
Data
Ingest
MATLAB Production Server
Web
Applications
…
MATLAB Distributed
Computing Server
Data
Access
Data
Ingest
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Demo of a Parallelized Simulation in the Cloud (parsim)
New!
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Digital Twins in perspective
Digital Twins are characterized by:
▪ Uniqueness: A unique instantiation per physical device.
▪ Composability: Structure, metadata, functionality in composable elements
from simpler atomic elements.
▪ Monitorability: Ability to monitor and receive notifications of events.
▪ Data Connectivity: Ability to connect to timeseries data, events, etc.
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Key Takeaways and Conclusions
▪ Engineering design meets Cloud-powered scalability
– To enable prognostics, diagnostics and other use cases
▪ Data Driven Models and Physics based Simulation
– Leveraging data with Physics models allows for creation of digital twin artifacts
▪ MathWorks tools provide a coherent platform for expression of models from
prototype to production that is aligned with your Analytics Strategy and your
IT infrastructure.
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Questions