MODEL BASED APPROACH TO COMPLEX SYSTEMS DESIGN: ELECTRICAL POWERTRAIN ADVANCED PROJECT · 2018-11-12 · ELECTRICAL POWERTRAIN ADVANCED PROJECT Emmanuel Laurain E-Powertrain System

RENAULT / DREAM / Emmanuel Laurain

KNOWLEDGE INSIDE / Joe Matta – Jérôme Vettese November 14th 2012

MODEL BASED APPROACH TO COMPLEX SYSTEMS DESIGN:

ELECTRICAL POWERTRAIN ADVANCED PROJECT

Emmanuel Laurain E-Powertrain System Architect

Renault SAS

Joe Matta / Jerome Vettese Project Manager / Application Engineer

Knowledge Inside

2 RENAULT / DREAM / Emmanuel Laurain


AGENDA

1.Introduction

2.arKItect SEA scope

3.Electrical Powertrain: A complex system

4.Synchronize deliverables and projects

5.Conclusion

For confidentiality reasons, the real E-powertrain data was not used in this presentation.



Introduction

Mechatronic systems are more and more complex and integrated

Large system scope - System of systems

Many issues:

Communication

Access/Capitalize information

Need for a common framework:

Collaborative

Structured based on a shared system representation

Flexible



Problem at hand

arKItect SEA implemented on Electrical Powertrain Advanced projects.

Covers most project processes

Enables a structured and versioned interaction with some of the functional teams

Adapted to Renault’s processes



arKItect© SEA scope - Framework to represent different viewpoints of a system design

Functional architecture

Physical architecture

Allocation Function / Component

Requirements view

….



arKItect© SEA scope - Tailored to meet Renault’s processes and deliverables

Physical architecture design

Stakeholders requirements synthesis

Technical requirements of the system synthesis

Functional architecture design

Validation

Allocation Functions on Components

#1

#2

#3

#4

#5



Vehicle E-powertrain

E-powertrain composition

Reductor

HV

battery Power electronics

14V

supply

Charger

E-m

oto

r

po

wer

ele

ctro

nic

s

EV-ECU

E-motor



E-motor :

-Different technologies

-Different powers

Link with E&E architecture of

the vehicle

Charger :


-Different powers

14V DCDC :

- Different powers

E-motor electronics :


SYSTEMS Family

Work methodology : Systems Engineering

HV battery :


N possibilities

of association

E-powertrain : a complex system with variability



E-Powertrain : Requirements hierarchy



E-Powertrain : Functionnal architecture



E-Powertrain : Physical architecture

GMPe

400V cable

EDP

EVCBatterie de traction

3 phases cables

CAN_ETS

EMR

Transmission roues

Câbles pédales

Supply electrical

cable

Pédales d'accéleration et de freinage

Batterie 14V

Roues motrices

Système d'Alimentation du

Véhicule Electrique

Charge interface

cable

400V cable

EDP

EVCBatterie de traction

3 phases cables

CAN_ETS

EMR

Distributeur puissance (busbar)

DC/DC 400V/14V

Chargeur HV power cable

Chargeur

INVERTER

DCDC HV power cable

LIN

Inverter HV power cable



E-Powertrain : allocation function on component

Distributeur puissance (busbar)

DC/DC 400V/14V

Chargeur HV power cable

Chargeur

INVERTER

DCDC HV power cable

LIN

Inverter HV power cable

Superviser la traction / la récupération d'énergie

Assurer les conditions thermiques

de la conversion d'énergie

mécanique/électriqueConstruire la consigne de

couple

Control onduleur

traction and regen

Derate currents, Estimate maximum

torque, Map currents

Rotor excitation

driver

onduleur inverter

driver

onduleur rectifier driver



Versioning

Green flows have been added. Red flows have been deleted.



Variants

2 variants of the system : with or without embedded charger



Time

E-Powertrain : methodology to decompose systems of system

SubSystem 3

SubSystem 2

SubSystem 1

System

Interfaces check &

Merge

3 independant

projects



Create deliverables sliced different ways



Conclusion

Systems Engineering motivations :

Complex systems design (different « métiers », different components, different divisions),

Better re-use / development standardization

Safety Automotive norm (ISO26262)

Easier integration of the innovations in the vehicles

Powerful features:

All life cycle phases in one single model (including the process)

Traceability from requirements to detailed architecture

Graphical hierarchical approach

Other approaches tested by Renault : SysML

arKItect© an intuitive interface and more flexible views

Documents

MODEL BASED APPROACH TO COMPLEX SYSTEMS DESIGN: ELECTRICAL POWERTRAIN ADVANCED PROJECT · 2018-11-12 · ELECTRICAL POWERTRAIN ADVANCED PROJECT Emmanuel Laurain E-Powertrain System