xb022
Key Data
The xb022 is our second car with a combined electric and driverless platform. It is not only the first xb that managed to compete in the electric and driverless category, but also the first TUfast car that completed almost all driverless disciplines at a competition. With that, we achieved a very successful ranking in FSG in the Driverless Cup with 4th place overall.
E-Powertrain & Electronics
(4x35kW)
- 4x Fischer electric motors: 35 kw and 29.1 Nm max.
- Accumulator capacity: 6.2 kWh
- Fully self-developed electric system:
SiC inverter, Contol unit, battery management system, dashboard - Dual band long range and LTE telemetry system
Chassis & Aerodynamics
- Full-body CFRP monocoque with an optimized layup with a high stiffness-to-weight ratio.
- Ergonomically optimized seating position, adjustable pedal-box, self designed CFRP seat with customized shoulder support
- CLA = 7.95 and CdA=1.98 on straight line
- CFD optimized Aerodynamics
- 3D curved rearwing endplates
- 2 x 750W Impeller fans used for powered ground effect
Suspension & Vehicle dynamics
- Highly integrated roll-heave-system
- excentic motor with raised wishbones on front axle, cenctric planetary gearbox on the rear axle
- 4-wheel drive with highly integrated wheelhub packages
- Function integrated, topologically optimized laser sintered uprights and bellcranks front axle
- Hoosier lco 16x10x7.5 tyres
- One-piece CFRP rims
- Vehicle Dynamics Control:
Slip control, Torque vectoring - Self-developed simulations and tools (lap time, multi-body, HiL, SiL, MiL, YMD, …)
Autonomous System
- More extensive testing through the use of continuous integration and multiple Simulation Pipelines
- Ouster OS1 Lidar 64 Layer
- fastSLAM localisation
- EKF state estimation
- Local and global motion-planning
- Raceline optimization with minimal curviture
- Curviture based steering control
Season Recap xb022
Competitions
Formula Student Germany 2022
1. Place Autocross
3. Place Skidpad
4. Place Overall
3. Place in the Design Finals
4. Place Driverless Cup
3. Place Driverless Acceleration
3. Place Driverless Acceleration
4. Place Driverless Autocross
Formula Student Austria 2022
4. Place Business Plan Presentation
Formula Student Spain 2022
2. Place Engineering Design
Formula Student East 2022
4. Place Engineering Design