FACT SHEET Sirius

DIMENSIONS AND MASS
Wheelbase : 1530 mm
F/R Track : 1240 mm
Ready to Race mass : 243kg (excluding driver) Weight Distribution : 50/50 (including 70kg driver)

MECHANICS
Suspension : Pushrod actuated Heave-Roll decoupling system, with 5 way adjustable dampers
Transmission : 4 x Outboard two stage planetary gearbox
Gear Ratio : 13.1667
Max Speed : 115km/h
Rims : Keizer 10’’ FSAE 12 Bolt Shell, Aluminum Tyres : 16×7.5-R10 Hoosier R20 Brakes Front : AP Racing CP4227 (4-piston caliper)
Brakes Rear : AP Racing CP4226 (2-piston caliper)
Chassis : Self-developed carbon fiber monocoque, 34kg with the hoops
Ergonomics : Self-developed carbon fiber steering wheel, dashboard and seat

AERODYNAMICS
Package : 80 self-developed carbon fiber parts (infusion based).
Frontal Area : CL : 2.8 | CD : 0.97 | 220 kg of downforce at 100km/h

AUTONOMOUS SYSTEMS

Braking : 10 Bar emergency braking system with two master cylinders
Steering : Actuated via motor directly into self-developed dual entry steering rack
Vision : LiDAR and Camera
Control : Stanely/MPC

ELECTRONICS

Max Power : 80kW (competition spec)
Motors : 4 x AMK hub motors 10 pole permanent synchronous 26kW/21Nm
VSI : 4 x AMK KW26-S5-FSE 8kHz hard switching IGBT inverters
Battery : 9.3kWh with 576 Molicel P45B cylindrical cells
BMS : Self Developed
Driving modes : 12 Stage power management system, switchable Traction Control and Torque Vectoring
Dash : Self developed tactile dashboard with sensor/shutdown/driving mode information Connectors : LEMO connectors
Code and Hardware : Labview running on a SBrio 9627 667 MHz CPU, 512 MB DRAM, 512 MB memory Communication : 2 CAN Buses, 1 ETH Network