FS.14
This season we managed to build a revolutionary car. Thanks to the loosening of the rules in the category of formulas with an internal combustion engine, we were able to take the car a step further with the development of our own hybrid system. We achieved this as the first ever Formula Student team worldwide.
We decided to go the four-wheel drive route and added two electric motors to the front axle in addition to the internal combustion engine. The drive is still dominated by the internal combustion engine. Electric motors with a power of up to 8.5 kW in combination with planetary gearboxes of our own design gave us an additional torque of up to 120 Nm on the front axle, which enables us to accelerate and exit corners faster.
However, the hybrid system was not the only development carried out on the new car. We also have a completely redesigned aerodynamic package. Thanks to the use of profiles of our own design, which are now less sensitive to the leaning of the car in corners, during braking or acceleration, we have almost doubled the downforce compared to the previous year’s car.
Due to the implementation of the hybrid drive, we had to design a completely new kinematics of the front axle, where we also adjusted our decoupled roll-heave suspension system, which we also added to the completely redesigned rear axle for the first time. Thanks to this, we can independently adjust damping and suspension on both axles. Changes to the rear axle were also accompanied by several modifications, such as a new frame.
212 kg
Vehicle weight (without driver)
63 kW
AT 10 400 ot/min
183 kg
DOWNFORCE AT 100 km/h
Dimensions
Wheelbase
- 1530 mm
Track width
- 1150/1100 mm
Vehicle weight without driver
- 212 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
- Four-way, adjustable Öhlins TTX25 MKII dampers
Rims
- Machined centers with carbon collar
Tires
- Hoosier 16×7,5-10 LCO (front)
- Hoosier 16×7,5-10 LCO (rear)
Brake System
- Custom design of brake discs and calipers
Hybrid
Motor
- Plettenberg HP-620, water cooled
Inverters
- Plettenberg
Battery Box
- Fireproof fiberglass casing
- Oil cooling
- LiFePo4 14s2p battery cells
Powertrain
Motor
- Yamaha YZF-R6, straight-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
Achievements
Autocross (FS Czech)
Autocross (FS Austria)
Cost & Manufacturing (FS Alpe Adria)
Acceleration (FS Alpe Adria)
Skidpad (FS Alpe Adria)
Cost & Manufacturing (FS Czech)
Acceleration (FS East)
Autocross (FS Alpe Adria)
Team members
Jaromír Šolc
Team Captain
Filip Klier
Technical leader
Ing. Radek Tichánek, Ph.D.
Faculty Coordinator
Suspension
Terézia Ďurkovičová – group leader
Alexander Bykov
Filip Cihelka
Vojtěch Čejka
Nikita Gorochshenya
Tomáš Pokladník
Martin Šilhánek
Jan Tučan
Powertrain
Vladan Pikl – group leader
Barbora Ďurkovičová
David Hofman
Daniel Janeček
Tomáš Javorský
Jan Jenne
Yury Kim
Peter Praženica
Martin Štarman
Pavel Valeš
Aerodynamics
Filip Klier – group leader
Matěj Chalupka
Martin Kubák
Petra Liďáková
Daniil Martynov
Samuel Pavlík
Jaromír Šolc
Tomáš Zavadil
Electronics
Martin Hazdra – group leader
Chassis
Tomáš Zejval – group leader
Dominik Hošek
Volodymyr Rybchynskyi
Polina Kim
Ondřej Kleinhampl
Public Relations
Miroslav Kršek – group leader
Terézia Ďurkovičová
Filip Klier
Jaromír Šolc
Karolína Pokorná
Team members
Jaromír Šolc
Team Captain
Filip Klier
Technical leader
Ing. Radek Tichánek, Ph.D.
Faculty Coordinator
Aerodynamics
Filip Klier – group leader
Matěj Chalupka
Martin Kubák
Petra Liďáková
Daniil Martynov
Samuel Pavlík
Jaromír Šolc
Tomáš Zavadil
Suspension
Terézia Ďurkovičová – group leader
Alexander Bykov
Filip Cihelka
Vojtěch Čejka
Nikita Gorochshenya
Tomáš Pokladník
Martin Šilhánek
Jan Tučan
Powertrain
Vladan Pikl – group leader
Barbora Ďurkovičová
David Hofman
Daniel Janeček
Tomáš Javorský
Jan Jenne
Yury Kim
Peter Praženica
Martin Štarman
Pavel Valeš
Electronics
Martin Hazdra – group leader
Chassis
Tomáš Zejval – group leader
Dominik Hošek
Volodymyr Rybchynskyi
Polina Kim
Ondřej Kleinhampl
Public Relations
Miroslav Kršek – group leader
Terézia Ďurkovičová
Filip Klier
Jaromír Šolc
Karolína Pokorná
Partners
