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02.06.2014 © INTIS GmbH 2014
AUTOMOTIVE INFOCOM MOBILITY, ENERGY
& ENVIRONMENT
AEROSPACE SPACE DEFENCE &
SECURITY
Inductive Energy Transfer on the move
Solutions for Bus, Logistics and Taxi Traffic
Dr. R. Effenberger, INTIS GmbH
Frankfurt (Main), 02. June 2014
02.06.2014 © INTIS GmbH 2014
• Introducing INTIS
• What is Inductive Energy Transfer and how does it work?
• Potential applications
• How we can help
Todays Topics
2
02.06.2014 © INTIS GmbH 2014 © INTIS GmbH 2014
IABG is a leading European High-tech Enterprise providing independent
& innovative solutions for public and private customers
* Total Operating Performance as of 2012
IABG Total Revenue: 166 Mio. €* Employees: approx. 1000
(approx. 10% Investments in Research & Development, Facilities, Personnel Development)
Automotive
Employees:
120
Development
and Operation of
Mechatronic
Test
Systems for
OEM and
Suppliers
Defence &
Security Aerospace
Mobility, Energy
& Environment InfoCom Space
87,4%
SCHWARZ Holding GmbH
12,6% IABG
Mitarbeiterbeteiligungs AG
Employees:
130
Development
and
Operation of
Information and
Communication
Systems
Employees:
140
Solutions for
Environmental
Protection,
Electro-Mobility
and the German
“Energy-
Change“
Employees:
160
Fatigue Testing
of Airframes
and Subsystems
Employees:
130
Operation of
ESA
coordinated
Space Test
Centers in
Ottobrunn and
Nordwijk
Employees:
270
Development
and Operation of
Military
Simulation and
Test Systems
for Analyses and
CD&E
3
02.06.2014 © INTIS GmbH 2014
IABG
Industrieanlagen-Betriebsgesellschaft mbH
Ottobrunn
IABG Mitarbeiter-
beteiligungs-AG (MBAG)
Ottobrunn
SCHWARZ Holding GmbH
Ottobrunn
87,4% 12,6%
100%
Defence & Security
Real Estate
Companies
32% 100%
Mobility, Energy,
Environment
50% 100% 100% 28%
EXTEDO
GmbH
Ottobrunn
IABG
Innovationen
GmbH
Ottobrunn
ETS BV
Noordwijk
StratCons
Bonn/Koblenz
MEADS
LLC
USA
100%
Aerospace Health Innovation
Centre
Based in Hamburg with a focus on
Mobility, Energy and Environment
INTIS in the IABG Group
ACENTISS
GmbH
Ottobrunn
Operating
Subsidiaries
I&I Hallengesellschaft mbH
Dresden
100%
Alawe Vermietungs GmbH & CoKG
Wiesbaden
94%
UMR GmbH
Nürnberg
INTIS GmbH
Hamburg
4
02.06.2014 © INTIS GmbH 2014
… our Motivation
The limited range of electric vehicles today is inhibiting the success and
acceptance of electric propulsion as a replacement for the internal
combustion engine.
Recharging vehicles with a plug and cable is only possible while stationary
and often takes a relatively long time. If vehicles could be charged faster
and more often, the problem of limited range would be solved.
This is where inductive power transfer systems can help; they don’t require
cables or a direct contact to transfer energy and can also be used while the
vehicle is on the move (known as dynamic charging).
Dynamic charging allows electric vehicles to become as flexible as their
internal combustion engine counterparts. Inductive power transfer is a key
technology in the journey to making electric mobility a success.
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02.06.2014 © INTIS GmbH 2014 © INTIS GmbH 2014
In comparison to conductive charging systems, wireless technology
offers 6 key advantages
Cost
efficient
Seamless
integrated
Convenient
Weight
efficient Wireless
Maintenance
free
1 2 3
4 5 6
Cable-free power transmission
independent of user (driver)
ensuring automated, on-demand
power transmissions
Avoid unwieldy cabling and
charging plugs
Enables reduced on-board battery
capacity making vehicles lighter,
giving more internal space and
comfort, increasing safety and
lowering the price of the vehicle
Longer battery life-time & higher
energy efficiency, avoidance of fast
battery charging and dedicated
stops for charging
Invisible, components are fully
enclosed
Wear and maintenance free,
insensitive to vandalism
1
2
3
4
5
6
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02.06.2014 © INTIS GmbH 2014
Overview of an inductive energy transfer system for electric vehicles –
contactless provision of energy while stationary and on the move
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02.06.2014 © INTIS GmbH 2014 © INTIS GmbH 2014
Equivalent Circuit for the Transformer
M – mutual inductance, - magnetic flux, k - coupling coefficient
8
Key-Element: the transformer with an air-gap
• Energy transfer system for electric vehicles requires an air-gap of at
least 15 cm
21LL
Mk
2
1
2
1
2
1
I
I
LjMj
MjLj
U
U
111 )1( LkLL
222 )1( LkLL
• Coil topology determines characteristics of the link between coils, stray
magnetic fields, lateral tolerance …
• Stray magnetic fields magnetic field strength limits must be
maintained (according to ICNIRP 2010, etc.)!
Primärsystem (Straße)
Sekundärsystem (Pick-Up)
Ferrit
Hauptfluss 21Φ
Streufluss 1Φ σ
02.06.2014 © INTIS GmbH 2014
Differences between stationary and dynamic energy transfer
Stationary Dynamic
While stationary at a charging point While on the move or at charging points
Charging batteries Propulsion energy and charging batteries
Cars and small commercial vehicles 3,5 kW … 20 kW,
bus applications up to 240 kW
Cars 30 kW, Busses, Trucks, small commercial vehicles
60 …180 kW*
Primary coil at charging point Roads with primary coil sections, turned on as car
passes
Specified energy transfer with a lateral tolerance of ± 10
cm (perpendicular to the direction of travel)
Specified energy transfer with a lateral tolerance of ± 5
cm (perpendicular to the direction of travel)
Primary coil installed in road (invisible) or on road surface Primary coil installed in road (invisible)
Dimensions of secondary coil dependant on required energy transfer
contactless, free from wear, low-maintenance, protected, part of the scenery (for problem of vandalism…)
*) range of power required (our estimation)
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02.06.2014 © INTIS GmbH 2014
Commercial transport
• Taxis, waiting lanes
• CEP services (courier express parcel)
• The Trades, using light commercial vehicles…
• Municipal service providers
• Internal transport (airports, freight villages, …)
• Bus systems
Application areas of inductive energy transfer
Bildquelle: Internet
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02.06.2014 © INTIS GmbH 2014
Inductive Energy Supply
Taxi waiting lane
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02.06.2014 © INTIS GmbH 2014
Inductive Energy Supply
Bus stop
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02.06.2014 © INTIS GmbH 2014 © INTIS GmbH 2014
INTIS has collected real life experience, in-depth, with inductive power
transmission in several different applications
Analysis & Design
• Transport analyses and feasibility studies
• System support in the development of the Inductive Power Supply (IPS)
• Maintenance and improvement of transport facilities
• Customized test stands for rail vehicles and magnetic levitation trains
Operation
• Test facility for the Maglev in Emsland
• Operated for nearly 30 years (1982-2011)
Analysis, Design & Delivery
• Specialised in the development of dynamic inductive power transmission
systems for industry and e-mobility applications with rated power of up to 200
kW
• About 15 years of experience
• IPR on primary and secondary coil topologies for e-mobility applications
secured
• Operation
• In-house test center for dynamic inductive power transmission systems
• Several prototype vehicles in operation: bus and passenger vehicle with
60 kW/ 30 kW power transfer rates
Application Spectrum of competencies
Magnetic levitation
trains
Electric vehicles
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02.06.2014 © INTIS GmbH 2014 © INTIS GmbH 2014
INTIS supports you in all steps of the value chain for inductive charging
• Review operational
requirements (e.g.,
driving cycle and battery
size) and provide
system specification
• Set-up the system
architecture for primary
side, secondary side
and vehicle power
electronics
• Provide the detailed
system design of energy
transmission system
(e.g., dimensioning of
components, vehicle
package,
communication
interfaces)
• Obtain permissions for
integration and
operation (e.g., EMC)
• Procurements of vendor
parts (e.g., DC/DC
converters) and
management of
suppliers (e.g., quality
standards and
requirements)
• Assemble components
(e.g., assembly of
inverter) with certification
by international norms
(e.g., ISO 9000)
• Test on component level
at our test lab (e.g.,
functionality of DC/DC
converters)
• Organize the road works
and integrate road
components
• Mount components to
vehicles for prototype
applications
• Verify functionality of
entire system in vehicle
on own proofing ground
• Validate system
performance in
operation
• Support hand over
process to operator
• Train operator in daily
usage
Project definition Project
implementation
Test and
verification Operation
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02.06.2014 © INTIS GmbH 2014
INTIS delivers complete solutions for inductive energy transfer to vehicles
Characteristics Details
Modular Approach • Modular concept allowing the use of similar modules for custom-built applications
• Current design foresees a power transmission of 60kW at a size of 2mx0.8m
High Performance • Distance between primary and secondary coil of up to 15 cm provides the required
clearance between road and vehicle
• Low pick-up weight at high rated power of ~1 kW per 1 kg of pick-up weight*, estimated
30kW per meter of pick-up length
• More than 90% of power transmission efficiency
Complying with
EMC requirements • Ensuring EMC requirements compliance at high power transmission rates
• Fully compliant with ICNIRP 2010 (EMC requirements)
Supporting different
modes of charging • Transferring power while parking or driving, supports static, semi-dynamic and dynamic
power transmission with no layout changes (pick-up and road)
Cost Efficient • Easy winding integration into road and installation procedures compatible with state of the
art road construction techniques
• Suitable for installation in new roads as well as in existing roads (retrofitting)
• Optimized coil topology with minimized usage of materials, e.g. less than 150 kg of copper
per 20 meter road inductor segment*
* Based on prototypes 15
02.06.2014 © INTIS GmbH 2014
How we can help …
• Proof of Concept, Consulting
• Development
• Optimisation to requirements
• Prototypes for cutting-edge new
technologies
• Delivery of components, systems and
complete solutions
• Diagnostics and verification, from the
component to system level
• Project management
• Conception, design and delivery of test
centres to customer requirements
• Operation of test centres
• And lots more …
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02.06.2014 © INTIS GmbH 2014
Interested in learning more? We’re here to help!
Dr. Ralf Effenberger
CEO INTIS GmbH
Tel: +49 (0)40 32 005 155
E-Mail: ralf.effenberger@intis.de
INTIS GmbH
Chilehaus A · Fischertwiete 2 · 20095 Hamburg
www.intis.de
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