future opportunities & challenges in powertrain ......future e/e-architecture centralization...

Future Opportunities & Challenges in Powertrain Development with Model Based DesignWerner QuirantDiesel Gasoline Systems – Electronic Controls

Powertrain Development: Opportunities & Challenges

Diesel Gasoline Systems | DGS-EC/NE | 21/09/2016

© Robert Bosch GmbH 2016. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.2

Global Drivers

Automated

Electrified

Connected




Master Variance & Complexity of Cross Domain Functions

SteeringTrans-

missionIC Engine E-Drive

Friction

Brake

Surround

Cameras

Front

CameraRadar

SensorsUltrasonic

Sensors

Cruise

Control

Parking

Assist

Valet

Parking

Autom.

DrivingADAS

Hybrid

Driving

Driver

BehaviorRecup.

Eco.

Driving

Fu

nctio

ns

Actu

ato

rs

Accelerate

(+x)

Steer

(+/- y)

Decelerate

(-x)

BRS

Se

nsors

Driving

PedalIoT

Cloud

Vehicle Motion Control (VMC)

Sensor Data Fusion

Navi

El.Horizon

Increase of cross-domain functions which influence the Vehicle Motion (lateral and longitudinal acceleration) are cased by

comfort, safety, autonomous and eco driving functions.

Complexity will be mastered by functional coordination of Vehicle Motion Control (arbitration/coordination of Vehicle Motion

Aggregates like braking, ICE, E-Machine & steering)




Model Based E/E-Architecture Design

Definition of a physical E/E system

Derive main functional cause-effect relationships and define

functional networking with optimized functional cluster

Functional

NetworkFCT

FCT

FCT

FCT

FCT

SIGNAL SIGNAL

SIGNAL

Transfer functional clusters on physical E/E components

and domains. Consider technological and strategic criteria,

such as weight, cost, flexibility, innovation cycle, safety and

security requirements, ..Vehicle

E/E - Network

CAN

Eternet

E/E - Technology &

Components

ECU ACTUATORSENSOR

CAN

Definition of relevant use-cases and of the functional

requirements for the electric and electronic systems

Requirements

& Use Cases actoractor

«flow»

usecase_3

usecase_4«extend»

actor

REQUIREMENT A

REQUIREMENT B

REQUIREMENT C




Functional Network: Example Vehicle Motion Control

Visualization of

interactions/interfaces

between the different

functionalities of the

vehicle system

Supports distributed

development, impact

analysis, conservation of

system competency

Base for deriving physical

E/E architecture

VMC

Bosch Approach: Modelling of vehicle wide (Cross-Domain) Functional Network in SysML

SysML model




Future E/E-Architecture

Fast innovation cycles

Integration of SW from different sources

Scalable, modular platform concepts

Web-based services

Strategic drivers

Drivers ‘Next Generation’ (E/E and SW) Architecture design

Emission reduction, Powertrain Electrification,

Automated driving and Connectivity

Introduction of complex cross domain or

cloud-based functions

Variant management

Technical drivers

Automated

drivingPowertrain

Electrification

Energy-

management

ConnectivityHigh-speed-

Communication Safety &

SecuritySW Updates

FOTA

Diesel Gasoline Systems | Dr. Dirk Hoheisel | 21/09/2016


Powertrain Development: Opportunities & ChallengesFuture E/E-Architecture

Centralization

Domain Fusion

Central Domain ECUs

Central Cross Domain ECUs(Cross) Domain

centralized E/E

architecture

TO

MO

RR

OW

Modular

Integration

Each function has his ECU

Functional IntegrationDistributed E/E

architecture

TO

DA

Y

Vehicle Computer &

Zone ECUs

Vehicle Cloud Computing

Zone Oriented Architecture

and Vehicle Computer

Vehicle functions

in the cloudVehicle centralized E/E

architecture

FU

TU

RE

increasing No of SW




Model-Based Cross-Domain Feature Development

Availability

CostTime to Market




Example mapbasedEcoACC

PCC (Pred. Cruise Control)

FOC(Follow Control)

co

nn

ecte

dSimulation scenario:

• Varying traffic

• Different road types

• CO2 saving: 2% - 5%

(depends on traffic)

Simulation scenario:

• No traffic ahead

• Vary driver & optimizer

• CO2 saving: ~10%

(depends on route)

Op

tim

ized

ha

ndover

HMI

Map and surround Data

Speed

Limit

Turn Preceding

vehicle

Road

Gradient

Curvature

Round

-about




Current Solution for mapbasedEcoACC Development

Co-Simulation

xDomain Simulation

Domainspecific

Simulation Tools

Key Enabler for successful Cross-Domain Simulation: Seamless Integration of different Simulation Tools

Today: Expert Solution




Future Solution for Cross-Domain Development

Flexibilty

Modularity

Reliability

Usability

Future: Standardized Cross-Domain Solution




Summary & Conclusion

Automotive Trends lead to more Cross-Domain Functions

Increased Complexity, High Variance

Complexity, High Variance & Fast Innovation Cycles

require enhanced E/E-Architecture Approaches

Complexity, Fast Innovation Cycles & Costs require

the usage of Virtual Prototypes in Cross-Domain

Function Development

Model Based Approach is key Enabler for E/E-Architecture & Cross Domain Function Development

future opportunities & challenges in powertrain ......future e/e-architecture centralization...

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