Project Objectives

Project Objectives
• Contribute to climate change prevention
• Demonstrate that electric vehicle is a viable option for
individual mobility
• Win X-PRIZE competition in the alternative class
• Add a new business to automotive industry
• Make Metropolia Automotive recognized worldwide
• Promote Finnish engineering
Design Objectives
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Design and build the most advanced AWD electric
vehicle suitable for small series manufacturing
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Registered to road traffic
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Green: modern technology, efficient, recyclable,
lightweight
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Part of the RaceAbout family: sporty, simple and
desirable
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Using existing components in feasible areas
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Simple structure, usability, serviceability
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Vehicle simulated to meet safety regulations
E-RA Specification
• Curb weight 1720 kg
• Performance
- Acceleration 0-100 km/h
- Top speed
- Oper. Range
- Consumption
Fuel equivalent
~ 6 sec.
> 220 km/h
~ 200 km
~ 145 Wh/km
~ 1.6 l/100 km
• Lithium-Titanate battery pack
• Four wheel direct drive with 4 inboard mount motors
• Carbon fiber monocoque
• Advanced, next generation stability control
• Optimal weight distribution & very low centre of gravity
• Capacity 2 passengers & > 140 l of cargo space
Powertrain
• Four wheel direct drive
• 4 inboard electric motors
• 4 inverters
• Total efficiency ~80 %
• Advanced, next generation stability
control
Motors
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Permanent Magnet Synchronous Motor with saliency
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Designed jointly with
Lappeenranta University of Technology
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250 Nm nominal / 800 Nm peak torque
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Available from 0 to 1800 rpm
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Water/air cooled
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Direct drive through drive shafts
No need for gears or differential
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Weight ~50 kg / motor
Batteries
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286 Lithium-Titanate cells (50 Ah each @ 2.3 V) in 2p143
configuration
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Capacity 32 kWh
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Voltage 243 – 415 V
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Power 200 kW continuous, 330 kW (10s)
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Fast charging capability (10mins @ 250 kW)
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Weight 550 kg (1.6 kg/cell)
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Each cell monitored and the
whole system balanced
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Operating temperature -60 - 75°C
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Charge temperature -50 - 75°C
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Lifetime ~5 000 cycles
Charging
• Built in Charger (Brusa NLG5)
- Power
3.3 kW
- Mains connection
230 V / 16A
- Charging time
~ 10 h
- Efficiency
~ 91 %
• Fast Charger (AeroVironment EV250)
- Power
3 - 250 kW
- Mains connection
3ph 480 - 600 V
- Charging time
~ 10 min
- Efficiency
~ 90 %
Body
• 24 carbon fibre composite parts
bonded together to form E-RA
monocoque
• Self supporting structure
• BIW weight ~150 kg
• Torsional stiffness same as in
today´s production vehicles
(>14 000 Nm / deg)
E-RA Appearances
Automotive X-Prize
Michigan 2010, 2nd place
Challenge Bibendum Berlin 2011
Winner: EV rally + Design Award
Le Mans 2011
e-miglia 2011
800 km Transalp EV rally - 9th
Nürburgring Nordschleife
Road legal EV lap record 8:42,72
Planned next
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Demo for 10 min fast charging
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Developing a heat pump for car use
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Further development for the electric motors and the inverters
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Further development for the control system
Contact
Sami Ruotsalainen
Project Leader and Chief Engineer
Helsinki Metropolia University of Applied Sciences
Automotive and Transport Engineering
[email protected]
www.raceabout.fi/era
Partners
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A-Katsastus
AeroVironment
AEZ
Audi Finland
Axco-Motors
Bayermann Recaro
Bender GmbH
Bodycote
Bosch Engineering
Brusa Elektronik
Centrafuse
Colornet
Componeering
Datalex
Diagno
Diarc
Elektrobit Automotive
Ensto Electric
Fevt
Finnish Cultural Foundation
Finnish Funding Agency for Technology and Innovation
Finnsco
Flexible Products
Flinkenberg
Fortum
Henry Fordin Säätiö
Idesco
ITW Plexus
IWS International
JJ-Tuonti
Kaha
Keraplast
KhreliX Design
Lahti University of Applied Sciences
Lappeenranta University of Technology
Meca-Trade
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Navicron
Nemko
Nokian Tyres
Patria Land & Armanent
Pilkington Automotive
PKC Group
Prinel
Rallysystems
Ruukki
Sandvik Mining and Construction
Sarlin Race Team
Savo Consortium for Education
Scan Mould
Schaeffler Finland
Sheet Metal Innovations
Sika Finland
Sika Tooling & Composites
Simtools GmbH
Simulia Finland
St1
Southern Illinois University Carbondale
Suomen Taksidata
Taipale Automotive
Technology Industries of Finland Centennial Foundation
Test World
Tesveka
Tuneko Ltd
US-Parts Finn-Am
Vacon
Valmet Automotive
VTI Technologies
Wela
YTM-Industrial
Örum
WinNova Lasepro
Videos
1.
RaceAbout
http://www.youtube.com/user/progautoxp#p/u/28/UPcU3e3qzBY
2.
Inside RaceAbout
http://www.youtube.com/user/progautoxp#p/u/37/3nPiR3wZep4
3.
Combined Performance and Efficiency
http://www.youtube.com/user/progautoxp#p/u/35/T3tooDtKjVk
4.
Accelerating the future
http://www.youtube.com/user/progautoxp#p/u/8/y26iwAnmEGM
5.
Challenge Bibendum 2011
http://www.youtube.com/user/ElectricRaceAbout#p/a/u/0/tvYsYrECJtk
6.
e-miglia 2011
http://www.youtube.com/watch?v=JfDq1ssgkvo
7.
Nürburgring Nordschleife
http://www.youtube.com/user/ElectricRaceAbout#p/a/u/0/TGob7Gs44ZA