previous arrow
next arrow

Mechanical Drivetrain

  • Motor: 2x Bosch SMG 138/80 FSE on the rear axle
  • Power: 50 kW per motor
  • Transmission: self-developed 2-stage spur gear; transmission of 8.38
  • Cooling: separate cooling circuits for motors and inverter; AKG radiators; cooling agent: water



  • Wheel suspension: CFRP double wishbone axles
  • Upright: topology optimized aluminium structure, manufactured via DLSM process
  • Spring damper system: Öhlins TTX25 MK2 Dampers actuated via pull rod and rocker, CFRP U stabilizer with titanium bending swords
  • Wheel hub: milled aluminum structure from EN AW 7075
  • Brake system: self-developed brake calipers for front and rear axle made of AlSi7Mg0.6, topology optimized, manufactured by investment casting; steel brake disks
  • Rims: 13" CFRP-rim with magnesium rim star
  • Tires: 13" Continental C17 Slick
  • Wheelbase: 1530 mm
  • Front track width 1200 mm
  • Rear track width: 1160 mm


  • Monocoque structure: sandwich construction made of magnesium and aluminum sheet and aluminum honeycomb; magnesium and aluminum inlays at connection points
  • Rear frame: 5-piece aluminium investment casting structure consisting of gearbox and swing; material made of AlSi7Mg0.6
  • Accumulator housing: Electron beam welded aluminum accumulator housing
  • Pedals: Accelerator and brake pedal made of aluminium
  • Security structures: Main roll hoop made of steel, front roll hoop made of steel; crashbox made of an aluminum honeycomb
  • Ergonomics: CFRP seat; CFRP steering wheel; 6-point harness; pedals adjustable to driver size



  • Accumulator: total capacity of 7.0 kWh, 403.2 V maximum voltage, 288 lithium-polymer cells in a 96s3p connection, self-developed Battery Management System (BMS) in master slave design
  • Power electronics: 2x Bosch INV2.2 as a double inverter in a self-developed cast aluminum housing
  • Low voltage system: : Modular decentralized control system of self-developed control devices for:
    • Measured value acquisition
    • Driver interface
    • Vehicle supply
    • Vehicle dynamics control
    • Security systems
    12 V supply voltage via a HV DC/DC converter
  • Driving dynamics control: consisting of torque vectoring, wheel-specific traction control



  • CFD-optimized vehicle
  • Validated with load cells / flow visualization
  • Coefficient of Lift * A: -2.3 [m²]
  • Lift / Drag: -1.8
  • Package weight: 22 kg including all covers
  • DRS in the rear wing


Formula Student Netherlands

2. Overall Electric
3. Mixed Overall
1. Autocross
3. Cost Report
3. Acceleration
3. Skid Pad
3. Endurance

4. Business Plan

Formula Student Spain
4. Autocross
6. Cost Report

World Ranking
40th place

Racetech Racing Team TU Bergakademie Freiberg e.V.