WFR21-E Technical Overview
Design Goals:
- Integration – Blurring the line between subsystems to create one high performing unit.
- Execution – Uphold the highest level of design and manufacturing quality, as well as operational standards.
- Continuous Improvement – Pursue incremental improvements in all aspects of the current vehicle package, in an ongoing effort to enhance performance and reliability.
Technical Specifications:
General:
- Vehicle Mass - 210kg
- Track Width - 1000 mm front, 985 mm rear
- Wheelbase - 1545 mm
- Tires - Continental 205/470R13 (13"x8") LC0 compound
Aerodynamics:
- CLA - 3.174
- CDA - 1.443
- 498 N @ 60km/h
- Features
- Front Wing
- Side Wings
- Rear Wing
- Diffuser
- CFD optimized
- System mass - 9.7 kg
Electric Powertrain:
- Single Emrax 228 MV LC electric motor producing 80KW
- Accumulator Capacity - 7.2 kWh
- Accumulator Voltage - 400V
- Battery Cells - 665 LGHG2 18650 in a 7P95S configuration
- Inverter - Rinehart PM100DXR
- Battery Management - Orion BMS2
- ECU - Motec M150 w/ self developed firmware
- Wireless Telemetry
- Traction Control
Drivetrain:
- Self-developed double reduction gearbox
- Drexler limited slip differential
Suspension:
- Type: Pushrod actuated double unequal length wishbone
- Decoupled heave and roll
- Dampers - Multimatcic DSSV FSAE heave and roll dampers
- 13" x 8" single piece CFRP wheels
- CNC machined aluminum uprights, rocker shafts, and rocker mounts
Chassis:
- Full CFRP monocoque manufactured using a single shot infusion process
- Integrated accumulator mounting flange
- Inter-laminar aluminum front roll hoop
- Unique planar design
- Monocoque mass - 25kg
Ergonomics:
- 3D printed CFRP steering wheel
- Driver adjustable power modes, traction control, and brake bias
- Self developed dash running on Android OS communicating with Motec CAN network
- Ergonomically optimized CFRP seat with adjustable thigh, hip and shoulder bolstering.
- Pedals adjustable both longitudinally & vertically.