Neue Fahrzeugkonzepte erfordern einen ganzheitlichen Ansatz in der Integrationsstrategie

Technologie-

und Innovationstrends aus der Zuliefer-Perspektive

Neue

Fahrzeugkonzepte

erfordern

einen

ganzheitlichen

Ansatz

in der

Integrationsstrategie

–

Am Beispiel

der

Elektronik

und Sensorik im

Fahrzeug

Megatrends

are influencing all business areas

Health

Water

Industry

Power

Mobility

Security

Urbanization

Demographic

change

ƒ

Improvement of vehicle reliability by

managing the growing complexity of

electronic architectures

Necessity to control increased complexity

ƒ

Further penetration of existing safety

systems (e.g. airbags, ESP)

ƒ

Advanced driver assistance systems

(e.g. adaptive cruise control)

Increasing demand for safety

Increasing need for in-car information

management

ƒ

Increasing penetration of existing

applications (e.g. navigation devices)

ƒ

More connectivity and integration of

consumer electronic devices

Car of the future

Growing concern for the environment

ƒ

Rising oil prices drive demand for improved fuel

efficiency

ƒ

Compliance with ever-higher emission standards

ƒ

Increased attractiveness of alternative propulsion

concepts (e.g. hybrids)

Automotive industry needs to master

fundamental technological challenges

Global megatrends

–

urbanization and demographic change

Automotive-specific trends

Increasing

mobility

Shortening

of natural

resources

Growing demand for safety

and security, information,

and communication

Shift of

eco-nomic

gravity

among regions

Growing need

for

environ-mental care

Siemens VDO is perfectly aligned to capture the

future opportunities of the automotive industry

Global megatrends

–

urbanization and demographic change

Automotive-specific trends

Increasing

mobility

Shortening

of natural

resources

Growing demand for safety

and security, information,

and communication

Shift of

eco-nomic

gravity

among regions

Growing need

for

environ-mental care

Growing concern for

the environment

Zero emission

Necessity to

control increased

complexity

Managed

complexity

Powertrain

Zero accidents

Increasing demand

for safety

Safety and Chassis

Always on

Increasing need for

in-car information

management

Interior Electronics

and Infotainment

Commercial Vehicles

Vehicle Integration

The

carriageless

horse

When the pioneers of the

automobile removed the

horse to create the

horseless carriage, they

removed the intelligence

as well. Now, through

electronics and software,

we can put the

intelligence back in.

Coordination

Level

Command

Level

The Skateboard Principle: Chassis and Body

C

oor

dinatio

n

Lev

el

Actuator

commands

Drivetrain

Translation of desired motion vector into actuator commands

C

om

m

and

Lev

el

Execution

Lev

el

* Human Machine Interface

Assistance

HMI*

3

1

4

5

2

Driver´s

_•

_{Capture of Driver commands}

Interface

•

Display of information to driver

•

Infotainment

Power and Signal Distribution

•

wiring harness

•

multiplexing

•

passive safety

•

entrance system

Drivetrain

•

Motion execution

•

Energy-creation and -management

•

Stability = reactive active safety

Passenger management

(all non-driving related tasks)

•

radio / entertainment

•

heating / climate

•

passive safety ...

Virtual

Copilot ADAS

•

Predictive surrounding evaluation

•

Creation of the motion strategy based

on primary / redundant surrounding

evaluation

3

1

4

5

2

Modularization as an answer to handle

complexity and increase functionality

5

Assistant

systems

1

4

Drivetrain

/ Chassis 3

E/E Infrastructure

2

Driver´s

Interface

Passenger

Management

Driver´s

Interface

•

Capture of Driver commands

•

Display of information to driver

•

Infotainment

Power and Signal Distribution

•

wiring harness

•

multiplexing

•

passive safety

•

entrance system

Drivetrain

•

Motion execution

•

Energy-creation and -management

•

Stability = reactive active safety

Passenger management

(all non-driving related tasks)

•

radio / entertainment

•

heating / climate

•

passive safety ...

Virtual

Copilot ADAS

•

Predictive surrounding evaluation

•

Creation of the motion strategy based

on primary / redundant surrounding

evaluation

3

1

4

5

2

Car

Powertrain

Propulsion System Drive-Train _{Suspension Brakes}

Electric Motor

Wheel Brake _Pads Rim Tire

Control System Body Chassis

Valve Train Engine Exhaust System Fuel System Engine Block Ignition System Electrical System

Transmission / Gear box

Differential Drive Shaft Shocks Shocks Springs Springs Bushings Bushings Brake Lines Brake Lines Master Cylinder Master Cylinder Calipers / Rotors Calipers / Rotors Steering

eCorner

Car

Powertrain

Propulsion System Drive-Train _{Suspension Brakes}

Electric Motor

Wheel Brake _Pads Rim Tire

Control System Body Chassis

Valve Train Engine Exhaust System Fuel System Engine Block Ignition System Electrical System

Transmission / Gear box

Differential Drive Shaft Shocks Shocks Springs Springs Bushings Bushings Brake Lines Brake Lines Master Cylinder Master Cylinder Calipers / Rotors Calipers / Rotors Steering

Recombination

of Components

to

eCorner

Car

Powertrain

Propulsion System Drive-Train _{Suspension Brakes}

Electric Motor

Wheel Brake _Pads

Rim Tire

Control System Body Chassis

Valve Train Engine Exhaust System Energy Source Engine Block Ignition System Electrical System

Transmission / Gear box

Differential Drive Shaft Shocks Shocks Springs Springs Bushings Bushings Brake Lines Brake Lines Master Cylinder Master Cylinder Calipers / Rotors Calipers / Rotors Steering Energy Generator

Recombination

of Components

to

eCorner Car

eCorner

Energy Generator

Electrical Drive

Steering

Suspension

Control System

Body

Chassis

Drive Train

Energy Source

interior

exterior

Brakes

Wheel

The

eCorner

Car Architecture

Example for a holistic integration strategy:

The Electronic Wedge Brake

The Electronic Wedge Brake Principle

wedge power

normal power

OLD

NEW

EWB System

The wedge

–

simple & effective

•

The brake pad is moved by an electric motor via a series of

rollers along a wedge-shaped slanting surface

•

The rotation of the wheel automatically reinforces the effect

of the wedge

p

High µ

Low µ

!

Δ

t2

Δ

t1

_{> >}

ABS: Comparison of Control Strategies

p EWB EWB Hydraulic High µ t Hydraulic Low µ

Simulation and Real Testing

Traction

Control

on µ-split

with

18% uphill

gradient

eCorner Car

eCorner

Energy Generator

Electrical Drive

Steering

Suspension

Control System

Body

Chassis

Drive Train

Energy Source

interior

exterior

Brakes

Wheel

The

eCorner

Car Architecture

Example for a holistic integration strategy:

The In-Wheel Motor

Ext. EPS & Chassis and Drivetrain Controller:

Interaction of the segments

HEV

CE

BU C

CE

BU P

HEV

today

tomorrow

EWB

eCorner

Brake

Controller

eChassis

Lunar

Rover

In-wheel

Motor Drive System

A Lunar Rover was used during Apollo missions 16 and

17. Altogether, three Rovers were used on the Lunar

surface and driven a total of 88.3 kilometers (54.8 miles).

The

first

approaches

of the

Wheel Hub Motor

Porsche-Lohner

1898

- World exhibition, Paris 1900:

Ferdinand Porsche introduces

his new electro vehicle.

- September 1900: Lohner-

Porsche with four wheel-hubs,

the first fully-operative wheel-

hub motor, with a battery-

weight of 1800kg.

Wheel-hub motor,

front wheel steering & drive,

2,5 PS/Motor,

44 cells battery, 300 Ah, up to 80 Volt,

v

= 50 km/h (35), s = 50 km,

m = 1000 kg,

1st car with 4-wheel brake,

m

= 100 kg;

1900: Allwheel drive m

= 1800 kg

1902: Hybrid with petrol motor

fro

nt w

hee

l st

eer

_ing

& d

riv

_e

Allw

hee

_{l d}

riv

_e

1900

"Semper Vivus" (benzin-

elektrischer Antrieb) / Mixte

1901

Porsche-Lohner-

Mixte (15 PS-Daimler-

Vierzylinder-Benzin-

Reihenmotor, 80 Volt-

Dynamo,

2,5 PS Radnaben-

Elektromotoren in den

Vorderrädern

1902

"Semper Vivus" Training zum Exelberg-Rennen

(28 PS-Benzin-Reihenmotor und 80 Volt/10 kW-Generator)

1903

Elektro-Benzin-Chassis ohne

großen Akkumulator

New Generation -

In Wheel Hub Motor

Specification:

ƒ

150 NM torque

ƒ

60A / 400 V DC-link voltage

ƒ

400 Nm overboost for 20 s

ƒ

2000 rpm

ƒ

weight: 8kg

ƒ

Dimension: fits into 17" wheel

ƒ

non fluidic cooling

eCorner

Market Introduction

Strategies

of OEMs

Introduction date

Introduction date

2011

2010

2012

2018

Concept

Concept

Fine N

FCX

Dual Note

Sequel

Quark

Next

Work on ECM

Work on ECM

OEM

OEM

Interest

_Interest

major drawback

Unsprung mass is a major drawback

2010

New Honda FCX

Fuel

Cell

and Wheel Hub Motor Concept

Car

Toyota Fine-X

Fuel

Cell

and Wheel Hub Motor Concept

Car

SOP unknown

Electric Wheel Motor

ƒ

Electric motors in each of the four wheels

ƒ

Compact fuell-cell hybrid powertrain

ƒ

Each wheel can steer independently (90 degrees)

for extraordinary maneuverabilit.

The

eCorner

–

drivers

and benefits

Benefits in comparison to conventional systems

ƒ

Safety benefits (no steering column with steer-by-wire)

ƒ

More safety through driver assistance systems

ƒ

Decrease in fuel costs

ƒ

Cost reduction over the whole product life cycle

ƒ

Benefits for the environment:

automobile without hydraulic liquids

ƒ

Possibility of self-managed driving

ƒ

More freedom during the production:

no difference between right-hand and left-hand steering due to

flexible positioning of steering gear and steering column