SPR14e Maja

Season 2014

Form follows function

100 kW

Motor power

1080 Nm

Torque

218 kgs

Total weight

Engine

1x YASA-750 brushless DC Motor
Control system: Sevcon Gen4.Size8 and dSpace MAB II
LiPo battery (96S2P, system developed in-house, 5.7 kWh, 46 kg)
Completely self-developed BMS (slave boards in the HV battery, master implemented in MAB)
Oil cooling with OptiCool fluid (all components in series)

Gearbox

Power transmission via tripods
CFRP drive shafts
Differential: Drexler Formula Student
Planetary gearbox (1.44 : 1)

Suspension

V: Push-Rod with 4-way damper (variably adjustable) with T-torsion stabilizer
H: Push-Rod with 4-way damper (variably adjustable), damper directly connected
Wheel suspension: Double wishbone made of CFRP
Tire manufacturer: Hoosier
Rims: OZ Racing
Steering: PSS steering gear with progressive steering angle characteristic

Electronics

CAN bus
Freely configurable HMI (Human Machine Interface)
Optimized cable routes (automotive standard)
Replaceable wiring harness
LV: 12V
WLAN/GSM live telemetry

Chassis

Structurally analyzed, MIG/MAG-welded tubular lattice frame
Material: E235/E355
Fire Wall: 0.5mm GRP laminated with UL94V0 resin
Crash-Box: Impaxx 700
Aramid outer skin

A racing car rarely drives alone.