WFR20-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.