FS.15
Built on the foundation of the world’s first hybrid single-seater, the car is coming off the most successful season in CTU CarTech’s history. There have been a few modifications from the previous model, with the most significant changes made to the hybrid and internal combustion powertrains. These include enhanced aerodynamics (resulting in a significant increase in downforce), a 12 kg reduction in weight, a 60 mm shortening of the chassis, and a new feature that allows the driver to adjust the rear suspension stiffness on the fly.
Equally important improvements were made to the electric motor software, better cooling for the in-house battery, new precision-cast ballasts, and lighter carbon wheels, clutch, and steering column, along with the addition of electro-pneumatic shifting.
In addition to the 63 kW combustion engine, the car is powered by two electric motors on the front axle, delivering a total output of 12 kW. The power output of the electric powertrain is regulated by rules limiting the maximum battery weight to 3 kg and the system voltage to 60 V. For this reason, the combustion engine remains the primary power unit.
204 kg
WEIGHT (WITHOUT DRIVER)
63 kW
AT 10 400 rev/min
220 kg
DOWNFORCE AT 100 km/h
Dimensions
Wheelbase
- 1530 mm
Track width
- 1150/1100 mm
Vehicle weight without driver
- 204 kg
Frame
- Carbon fibre sandwich monocoque, spatial frame in the rear manufactured from high strength steel tubes (25CrMo4), TIG welded
Handling
Wheel Suspension
-
Roll-Heave system on both axles
-
Double A-arms of unequal length on both axles
Damping
- Adjustable Öhlins TTX25 MKII dampers
Rims
- Machined centers with carbon collar
Tires
- Hoosier 16×7,5-10 R20
Brake system
- Custom design of brake discs and calipers
Hybrid
Motor
- Plettenberg HP-620, water cooled
Invertor
- Plettenberg
Battery box
- Fireproof fiberglass casing
- Oil cooling
- LIFePo 60V cells with 18s2p configuration
Powertrain
Motor
- Yamaha YZF-R6 2007, inline-four engine
Intake System
- Custom design, carbon fiber intake
Exhaust System
- Custom design, titanium exhaust system
ECU (Engine Control Unit)
- EFI Technology Euro 4
Bore
- 67 mm
Stroke
- 43 mm
Displacement
- 599 m3
Compression Ratio
- 13,7:1
Fuel
- RON 98
Maximal Engine Power
- 63 kW at 10 400 rev/min
Maximal Torque
- 60 Nm at 8 700 rev/min
Second Gear
- Motorcycle chain 520
Differential
- Drexler LSD v2010
Cooling
- Forced – sealed intake ducts, coolers and electric fans
Aerodynamics
Coefficient of lift
- – 4.81
Coefficient of drag
- 1.78
Downforce
- Downforce Increase by 20%
- Weight Reduction with Redesign of Composite Structure
Achievements
Overall (FS Alpe Adria)
Engineering design (FS Austria)
Autocross (FS Austria)
Endurance (FS Austria)
Efficiency (FS Austria)
Cost & Manufacturing (FS Czech)
Business plan (FS Czech)
Overall (FS Netherlands)
Overall (FS Austria)
Cost & Manufacturing (FS Netherlands)
Business plan (FS Netherlands)
Skidpad (FS Netherlands)
Acceleration (FS Netherlands)
Autocross (FS Netherlands)
Endurance (FS Netherlands)
Efficiency (FS Netherlands)
Business plan (FS Austria)
Skidpad (FS Austria)
Acceleration (FS Austria)
Engineering design (FS Czech)
Acceleration (FS Czech)
Autocross (FS Czech)
Engineering design (FS Alpe Adria)
Cost & Manufacturing (FS Alpe Adria)
Skidpad (FS Alpe Adria)
Acceleration (FS Alpe Adria)
Autocross (FS Alpe Adria)
Endurance (FS Alpe Adria)
Overall (FS Czech)
Engineering design (FS Netherlands)
Achievements
Overall (FS Netherlands)
Overall (FS Austria)
Cost & Manufacturing (FS Netherlands)
Business plan (FS Netherlands)
Skidpad (FS Netherlands)
Acceleration (FS Netherlands)
Autocross (FS Netherlands)
Endurance (FS Netherlands)
Efficiency (FS Netherlands)
Business plan (FS Austria)
Skidpad (FS Austria)
Acceleration (FS Austria)
Engineering design (FS Czech)
Acceleration (FS Czech)
Autocross (FS Czech)
Engineering design (FS Alpe Adria)
Cost & Manufacturing (FS Alpe Adria)
Skidpad (FS Alpe Adria)
Acceleration (FS Alpe Adria)
Autocross (FS Alpe Adria)
Endurance (FS Alpe Adria)
Overall (FS Alpe Adria)
Engineering design (FS Austria)
Autocross (FS Austria)
Endurance (FS Austria)
Efficiency (FS Austria)
Cost & Manufacturing (FS Czech)
Business plan (FS Czech)
Overall (FS Czech)
Engineering design (FS Netherlands)
Team members
Martin Štarman
Team captain
Filip Klier
Technical leader
Ing. Radek Tichánek, Ph.D.
Faculty Coordinator
Suspension
Jan Tučan – group leader
Alexander Bykov
Filip Cihelka
Terézia Ďurkovičová
Nikita Gorochshenya
Martin Šilhánek
Powertrain
Vladan Pikl – group leader
Michal Bouček
Jindřich Eichler
Tomáš Javorský
Jan Svoboda
Martin Štarman
Electronics
Martin Hazdra – group leader
Anna Budková
Lukáš Lámus
Chassis
Tomáš Zejval – group leader
Ondřej Hejna
David Jedlička
Lukáš Lámus
Volodymyr Rybchynskyi
Jakub Šinták
Mykyta Zaizzhai
Dominik Hošek
Public Relations
Tomáš Zavadil – group leader
Noé Elis
Jakub Kaplický
Aerodynamics
Filip Klier – group leader
Jan Domiter
Matěj Chalupka
Martin Hájek
Richard Kašpar
Wonjun Lee
Petra Liďáková
Daniil Martynov
Filip Müller
Petr Šíma
Tomáš Zatloukal
Tomáš Zavadil
Team members
Martin Štarman
Team captain
Filip Klier
Technical leader
Ing. Radek Tichánek, Ph.D.
Faculty Coordinator
Suspension
Jan Tučan – group leader
Alexander Bykov
Filip Cihelka
Terézia Ďurkovičová
Nikita Gorochshenya
Martin Šilhánek
Aerodynamics
Filip Klier – group leader
Jan Domiter
Matěj Chalupka
Martin Hájek
Richard Kašpar
Wonjun Lee
Petra Liďáková
Daniil Martynov
Filip Müller
Petr Šíma
Tomáš Zatloukal
Tomáš Zavadil
Powertrain
Vladan Pikl – group leader
Michal Bouček
Jindřich Eichler
Tomáš Javorský
Jan Svoboda
Martin Štarman
Chassis
Tomáš Zejval – group leader
Ondřej Hejna
David Jedlička
Lukáš Lámus
Volodymyr Rybchynskyi
Jakub Šinták
Mykyta Zaizzhai
Dominik Hošek
Public Relations
Tomáš Zavadil – group leader
Noé Elis
Jakub Kaplický
Electronics
Martin Hazdra – group leader
Anna Budková
Lukáš Lámus
Partners
