Development of a scalable multi -controller ECU for a smart, …€¦ · F-7761DE_C (2011 -06)...

F-7761DE_C (2011-06)

Development of ascalable multi-controllerECU for a smart, safe andefficient Battery ElectricVehicleUlrich Köhler, Nikolaus Decius, ChristopherMasjosthusmann, and Ulrich Büker

AMAA 2013

Berlin

Contents

� European project eFuture: an introduction

� Architecture overview

� Electronic control unit

� Conclusion

Development of a scalable multi-controller ECU for a smart, safe and efficient BEV |Ulrich Köhler | E-AE | AMAA 2013

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• Funded by the EuropeanCommission

• project term

2010-09-01 ... 2013-08-31

• Budget ca. 7 Mio. Euro

• 6 partners from 4 countries

� 4 industry

� 2 research institutes

• Coordinator:Intedis, Würzburg

Development of a scalable ECU for a smart, efficient BEVIntroducing eFuture: a European Project

3 Development of a scalable multi-controller ECU for a smart, safe and efficient BEV |Ulrich Köhler | E-AE | AMAA 2013

• Safety� 2 front electric motors

� Agility vs. controlling risk

� Functional safety (ISO 26262)

• Efficiency� Enhancing the driving range by

intelligent and anticipatory functionswith inclusion of the driver („virtualrange extender“)

• Intelligent functional architecture� Support of Safety by hierarchic

composition and clear task sharing

� Support of Efficiency by greenfunctions and green parameters

kWh

Development of a scalable ECU for a smart, efficient BEVIntroducing eFuture: Safe and Efficient Electrical Vehicle


Sensor Fusion

Sensors Navi/eHor

Driver

Veh. Observer

Guiding ADAS

Decision Unit 1

Stabilising ADAS Decision Unit 2

Drivetrain

Battery Mgmt

Energy Mgmt

HMI

Perception Layer

Command Layer

Execution Layer

Energy Layer

SteeringBraking

Sensor Fusion

Sensors Navi/eHor

Driver

Veh. Observer

Guiding ADAS

Decision Unit 1


Drivetrain

Battery Mgmt

Energy Mgmt

HMI

Perception Layer

Command Layer

Execution Layer

Energy Layer

SteeringBraking

Sensor Fusion

Sensors Navi/eHor

Driver

Veh. Observer

Guiding ADAS

Decision Unit 1


Drivetrain

Battery Mgmt

Energy Mgmt

HMI

Perception Layer

Command Layer

Execution Layer

Energy Layer

SteeringBraking

Sensor Fusion

Sensors Navi/eHor

Driver

Veh. Observer

Guiding ADAS

Decision Unit 1


Drivetrain

Battery Mgmt

Energy Mgmt

HMI

Perception Layer

Command Layer

Execution Layer

Energy Layer

SteeringBraking

FunctionalArchitecture

Energymanagement

DriverCoaching

GreenAssistanceSystems

kWh

Development of a scalable ECU for a smart, efficient BEVIntroducing eFuture: Safe and Efficient Electrical Vehicle


Updated HMI

Front andrear

cameras

Updated Power distributionHELLA VHU

Radar

Twin Yasa Motors –delete gearbox

Optimised Miljøbil batterywith HELLA BMS

Development of a scalable ECU for a smart, efficient BEVIntroducing eFuture: newly Developed Vehicle Components


� Central position in the E/E architecture:� drivetrain control� energy control� HMI input� sensor input� peripheral actuators

� Control function for HV and LV systems

VHU

HMI(DisplaysPedals)

SensorsActuators

InverterLh

InverterRh

MotorLh

MotorRh

Development of a scalable ECU for a smart, efficient BEVVehicle Head Unit : an Overview


ConverterDCDC BMS HV BatteryPTC

Heater

Cameras

Radar

Navigation

LVHV

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Development of a scalable ECU for a smart, efficient BEVSoftware Architecture boundary Conditions


� Different domains (Decision units, ADAS, HMI, Energy Management)� Applications contributed by 4 partners

� responsibility by domain� Base SW by HELLA

� Hardware development by HELLA

Sensor FusionDriver

Perception Layer Sensors Navi/eHor

Guiding ADAS

Decision Unit 1

HMI

Command Layer

Battery + Mgmt

Energy Mgmt

Energy Layer

VehObs

Stabilizing ADASDecision Unit 2

Drivetrain

Execution Layer

Steering

Sensor Fusion

Guiding ADAS

Stabilizing ADAS

HMI

Decision Unit 1

VehObs

Decision Unit 2

Energy Mgmt

Development of a scalable ECU for a smart, efficient BEVVHU solutions (1): scalable multi-controller ECU


� 4 micro controllers� distribution of function

domains• independence• monitoring

� choice of controller• standardization• scalability

� interconnected via privateCAN

� Choice of peripherals� real time clock� system basis chips� inertial measurement unit

� Reprogrammable

� Connectors9

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Development of a scalable ECU for a smart, efficient BEVVHU solutions (2): robust design


� Paired micro controllers� function supervision� redundancy

• drive train• HMI• sensors & actuators

� System basis chip� doubling power supply

to micros� watchdog

� Connectors� redundant power feed� redundant CAN

� AUTOSAR based SW� decoupled SW modules

Conclusion & Outlook

�Within an EC funded research project a central ECU for a BEV wasdeveloped.

� The VHU is at the heart of a novel function architecture based on the use ofdecision units.

� The ECU serves as host for

� drive train control

� vehicle level energy management

� exterioceptive sensors

� HMI

� The demonstrator vehicle is currently being tested!

�We gratefully acknowledge support from the EC under grant no. 258133within the Green Cars Initiative.


Conclusion & OutlookVehicle Head Unit mounted in engine compartment


Conclusion & OutlookRecent result: roller testing


Development of a scalable multi -controller ECU for a smart, …€¦ · F-7761DE_C (2011 -06)...

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