Drivetek is an engineering company founded in 2002 specializing in application-specific drive solutions. It has 24 employees, most of whom are engineers, and partners with other companies on projects. Notable successes include providing motors, inverters, and software for the hybrid Porsche 911GT3R racecar and the solar-powered boat Planet Solar. Drivetek's expertise includes electrical machine design, hardware and software engineering, control systems, and power electronics. It seeks network partnerships for projects and offers its engineering services to other companies.

1. Minnovarc
30.05.2013
Experience in
Innovation...

2. drivetek portrait
• Founded 2002
• Based in Ipsach near Biel/Bienne
• Engineering partner for
application specific drive solutions
• 24 employees,
thereof 20 engineers.
55%31%
9%
5%
Founders Sputnik Semikron Others
Shareholder structure
Partners:

3. Subsidiary SKAItek GmbH
• Founded in 2010.
• SKAItek develops and sells software
solutions for power electronic systems.
50:50 Joint Venture
• Manufacturer of power electronic components
and systems.
• Worldwide active, main offices in Nurnberg
Offices in
Ipsach

4. drivetek main markets
Automotive &
Transportation
Hybrid & electrical vehicles
Commercial, special and
agriculture vehicles
Public transportation
Boats
Industry
Custom specific drive
solutions
For optimal integration
in customer product
Energy systems
Small decentralized
power generation
Island systems
“Green Energy”
Rotating power
generation
Same base technology / modules (SW & HW)

5. Expertise electrical machine design
FEA optimization yields machines with the best performance
• Electro-magnetic Finite Element
Analysis (FEA)
• Machine simulation and modeling
• Mechanical design
• Prototyping / production with partners

6. Expertise hardware engineering
• Circuit board development
• Prototyping
• Production setup and support
• Certification support
Specific know-how in:
• Motor drive inverters
• Grid feedback inverters
• DC/DC Converter
• Power electronics integration
• DSP controller boards
Continuous engineering process

7. Expertise software engineering
• Development according to
customer or drivetek specific
guidelines
• According MISRA-C standard
• Structured analysis and design
• Embedded / DSP applications
• Windows applications
Specific know-how in:
• Motor Control
• Automotive Software
• Texas Instruments DSP’s
Software development in C/C++

8. Expertise systems and control
Systems
• Optimization on system level
• Understanding and respecting
all system parts like energy
storage, mechanics, vehicle
dynamics
Control / Simulation
• Motor control strategies for
maximum efficiency
• Hardware / software
co-simulation
• System modeling and analysis
expertise

9. SKAI Inverter with motor control software QUASAR
• IGBT & MOS inverter
• From 24V up to 900V DC
• Power range up to 200kW
• Control software for all motor types
drivetek Motors
• Ideal for electrical traction
• Scalable to application
• Integrated position and temperature sensor
Products for electrical power train

10. SUCCESS STORIES
drivetek – Experience in innovation
10

11. Porsche 911GT3R Hybrid
Porsche Intelligent Performance – high efficient racing!

12. Porsche 911GT3R Hybrid
The GT3 R Hybrid utilizes two electric motors to drive the front wheels. Braking energy is
stored in a flywheel. A steering wheel-mounted boost button allows the driver to bring additional
150 kilowatts –204 horsepower – to the front wheels for acceleration.
1 DUAL Inverter for traction motors
2 Portal axle with two e – motors
3 High voltage cables
4 Flywheel storage
5 Inverter for flywheel storage

13. 911GT3R Hybrid: drivetek components
Double-motor, 2×75kW continuous power
high-performance, compact, efficient.
Motors Position Sensor
Position sensor with redundancy for both
motors. Only 7mm wide in axial direction.

14. Each inverter is designed for 75kW continuous power. Total mass 11.5kg.
911GT3R Hybrid: drivetek components
DUAL Inverter - Common DC-link: 2 × 75kW, 13kW per kg!

15. Planet Solar: open sea solar yacht
Technical data solar yacht
• Length 35m
• Width 25m
• Weight 90 tons
• 500m2 Solar panel
drivetek‘ s mission:
• Electrical power system design.
• Design of propulsion system.
• Supply of motors, inverters and
software.
• Design and supply of the 95kW
Maximum Power Point Tracker system.
• Energy management system.

16. Planet Solar: drivetek components
Maximum Power Point Tracker: completely designed by drivetek
• Total power from panel 95kW
• Power per tracker 8kW
• Maximum efficiency 99.2%
Efficiency MPPT 7.5kW
95
96
97
98
99
100
0 5 10 15 20 25
PV current [A]
Efficiency[%]
Battery = 340V
Battery = 388V
Battery = 420V
Conventional technology

17. Planet Solar: drivetek components
Redundant designed propulsion system
• Two motors per float, separable by clutches.
• Semikron SKAI2 inverter.
• drivetek motor control software QUASAR.

18. Networking – drivetek offers
As service provider
• Bringing in our expertise in your drive or power conversion project
• Be a competent partner for projects with
• electrical motors / generators / actuators
• power electronics / electrical energy conversion
• power generation / grid feedback
• Our engineers have experience
• from small (>100 Watt) to high power (<500kW)
• with highest optimization for weight and/or efficiency
• With design for series / mass production

19. Networking – drivetek looks for
For our customer projects we
• rely on network of competent partners to realize our prototypes or
setting up a series production
• are always interested to know potential suppliers / manufactures
• with expertise in the presented working fields
• new or unique solutions suiting in our projects
• locally based and flexible

20. Welcome to the Powerhouse!
drivetek ag
keltenstrasse 1
ch-2563 ipsach
tel. +41 32 332 79 32