Towards to a Model-driven and Tool-integration Framework for

Co-simulation Environments

Jinzhi Lu, Ph.D student, KTH

Martin Törngren, Professor, KTH

Jinzhi Lu

2

Design Engineer Department of Control and Electronic System Design Shenyang Engine Design and Research Institute Aviation Industry Corporation of China

Project Manager Design Engineer

Suzhou Tongyuan Software and Control Technology Company

Working

Ph.d student

Pre_project Research on Model-basaed System Engineering Approach and Tool-chain for Aero-engine Control system and Pragnostic Health Management System

13th Five-Year Plan Project Research on Model-basaed System Engineering Approach and Tool-chain for Aero-engine Control system and Pragnostic Health Management System

Project

Challenges of CPS Design

Data Data Model

Data Data Tool Data Data Data

System Design Electronics

Software

Safety

Project manager

Maintenance

Training

Quality

IT

Test

Mechanical System

Subsystems…

Standards

Process

Business model

Efficiency

E-mail Meeting

Document-Based

3

Information

Proposed Approach

Tool –chain of simulation and system design

Industrial Practices

Model-based System

Engineering

Co-simulation

HLA

FMI

Tool-integration

OSLC

Investigation of MBSE transitioning ’SPIT’ Framework

Information model, BPMN and System Engineering

Model-driven technology

Engineering Design Platform

4

Outline

1 State of the art

2 ’SPIT’ Framework

3 An industrial Problems

4 Solutions

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State of the art Be careful to discuss models with others

D:Design;A:analyze Design Function

Specified Area

Information Description

Domain Formal Model Type Simulation Architecture Behaviors Function Process Requirement Description

Design Infor Description

Process Description V&V

Embeded system Language AADL D&A D&A D&A Vehicle √ √

Language EAST-ADL D&A D&A D&A Vehicle √ √ √ √

Multi-domain Language Modelica √ D&A D&A D Multi-domain

Tool-based Co-simulation √ D&A D&A D Multi-domain

System & Architecture

Language UML D&A D&A D&A D&A General √ √ √

Language SysML D&A D&A D&A D&A General √ √ √ √

Language Arcadia / Capella D&A D&A D&A General √

Business Process Model Language BPMN D&A General √

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Social Layer Create shared social models to change and align values, behaviors, actions from management, transitioning, political and strategic views and cultures

People Organization

Lingking Relationships

Process Layer The business process model for product design based on industrial standards

Design process

Information Layer The information model including all the concerns about system design

Requirements, feature, function, tool configurations, verification &validation, data linking, structure model and interface design

Technical Layers Simulation and analysis for requirements Co-simulation

/Modelica

Analysis

Ontology

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’SPIT’ framework and its concerns

Cited from Sillitto H G. 1.3. 1 Design principles for Ultra Large Scale (ULS) Systems[C]//INCOSE International Symposium. 2010, 20(1): 63-82.

SPIT Framework Questionnaire for open-mind questions

Design objective questionnaire and collect data

Analyze Data and find best way for transitioning from DB to MBSE

Find industrial standards for simulation

Model the simulation process based on different system characteristics

Find industrial standards for simulation and system design

Model the simulation information based on different system characteristics

HLA(RTI) and FMI standards

Develop Co-simulation platform

OSLC

Develop tool-chain for co-simulation platform

Cited from Sillitto H G. 1.3. 1 Design principles for Ultra Large Scale (ULS) Systems[C]//INCOSE International Symposium. 2010, 20(1): 63-82.

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SPIT Framework

Document-based Design Software Multi-domain system

Transitioning

Component Design CAD-based Design

Model-based Design

Simulation-based design and analysis Model-integrated

Engineering and analysis

MBSE Model-driven Model-based development

Social Layer

Transitioning from DB to MBSE from Technical Views

Process Layer

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System Level Requirements

High Level Design

Component Detailed Design

Implementation

Component Verification

Sub-system Verification

System Verification and Deployment

Information Model

Physical system model Verification

Component Design

Information Model

Physical system model Verification

High Level Design

SPIT Framework

Information Layer

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SPIT Framework

Technical Layer

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SPIT Framework

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Tool-chain

SPIT Framework-Overview

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An Industrial Problems for Requirements of Model-driven Technology

Requirement: 3-second rule

Assume there are two vehicles with the speed 𝑣𝑣1 (km/hr) and 𝑣𝑣2 (km/hr), with distance 𝑑𝑑12 (m). The 3-second rule is defined as:

𝑑𝑑12 ≥𝑣𝑣13,6

∙ 3

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Applying SPIT to an industrial problem

FMU

Interface lib

Subsystem block

S-function for FMU

Vehicle Dynamic model

Simulink Model

Top system model of simulation 15

S-function for FMU

XML DLL Headfile

FMU in Simulink (S-function)

M file of S-FUNCTION

Self-design and now we can change the configuration by hand for different FMU

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Algorithm for co-simulation interface

Simulink FMU

0

0.001

0.002

1 2

3 4

5

Simulink model

FMU

Interface of Co-simulation

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Model-driven Solutions

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VVcaseStructure Model Interface Model

Meta-edit

Create Simulink Model and insert interface block of FMU

S-function for interface, info of FMU

Set parameter for models and run simulation

Simulink Model

Environment configurationOpen Carmaker select

carmaker model, configue FMUDefine task based on parameter

setting and solver setting

Automatically run simulation based on tasks

Auto- generate

Run M-script

Co-simulation Execution Strategy

Configure the co-simulation Environment

Information Model

VVcase

Modelstructure

Co-simulation configuration

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Test case

Test1: traffic vehicle has a constant speed

•EgoVehicle • Initial position:[40 0.0 0.4] • Initial Velocity:20 •Acceleraion:0

•TrafficVehicle • Initial position:[0 0.0 0.4] • Initial Velocity:20 •Initial Acceleraion:0

Test 2: traffic vehicle has a sine wave speed

•EgoVehicle •Initial position:[40 0.0 0.4] •Initial Velocity:20 •Acceleraion:2sin(t)

•TrafficVehicle •Initial position:[0 0.0 0.4] •Initial Velocity:20 •Initial Acceleraion:0

Test 3: traffic vehicle has deceleration

•EgoVehicle •Initial position:[40 0.0 0.4] •Initial Velocity:20 •Acceleraion:-1

•TrafficVehicle •Initial position:[0 0.0 0.4] •Initial Velocity:20 •Initial Acceleraion:0

Test4: traffic vehicle has a sudden acceleration and then keep constant speed

•EgoVehicle •Initial position:[40 0.0 0.4] •Initial Velocity:20 •Acceleraion:0(0-30s),1(30-60s),0(60-100s)

•TrafficVehicle •Initial position:[0 0.0 0.4] •Initial Velocity:20 •Initial Acceleraion:0

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Technical Map

Information Model

Co-simulation model

Result

Thank you!

Tool –chain of simulation and system design

Industrial Practices

Model-based System

Engineering

Co-simulation

HLA

FMI

Tool-integration

OSLC

Investigation of MBSE transitioning ’SPIT’ Framework

Information model, BPMN and System Engineering

Model-driven technology

Engineering Design Platform

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