WRe1

WRe1 has been the team’s first electric race car, following a successful line up of 6 internal combustion cars.
Being the team’s first foray into electric powertrain the objective with this car was to maximise the development and learningin the electric powertrain by working on evolving the design of chassis from our previous Internal combustion cars.

Performance

Maximum Power (kW)80
Maximum Torque (N·m)370
Top Speed (km/h)110
Acceleration (0-100)3.9
Power to Weight ratio (hp/ton)271

Dimensions

Wheelbase (mm)1700
Front Track (mm)1250
Rear Track (mm)1150
Height (mm)1225
Weight (kg)395

Chassis & Suspension

Body

  • Bodywork

    Recycled carbon fibre sheet moulded compound sheets

  • Front Nosecone

    Custom aerodynamic thermoplastic part manufactured by additive manufacturing

  • Driver Seat

    Custom Pro-Seat Moulded Foam

Battery

Total Pack Capacity (kWh)
5.92
Maximum Pack Power (kW)
79.8
Maximum Pack Discharge
310 A for 4s

238 A for 10s

100 A Continuous
Maximum Pack Charge (A)
13.7
Maximum Pack Voltage (V)
336
Minimum Pack Voltage (V)
200
Cells
Panasonic UR18650RX LiFePO4
Total Number
800
Module Layout
100 cells in 10S10P
Number of Modules
8
Pack Layout
8 Modules in Series
Battery Management System
Custom Motorsport-Grade BMS
Safety Measures
Cell Temperature and Voltage measurements of every cluster of 3 cells

Five Battery Pack Isolation Relays

Insulation Monitoring Device to ensure integrity of wiring

Amphenol High Voltage Quick Disconnect
MotorHigh power density and high efficiency YASA P400S AC 3 Phase Synchronous Permanent Magnet Outrunner Design and Water cooled
InverterSEVCON Gen4-S8 Advanced flux vector control for minimal power consumption CAN Bus Controlled
Vehicle Control UnitEmbed E400 Automotive Controller
DifferentialDrexler Mechanical Limited Slip Differential
Transmission512 Chain Renthal Sprocket Gear Ratio: 3.1
Cooling SystemDual radiators with aerodynamic ducting Variable speed electric pump 
Overall Vehicle Safety SystemsCustom PCB for Traction System Active Light Custom PCB Brake Plausibility Device Motorsport UK approved cut off switches
Low Voltage BatteryLightweight LiPO Battery
DashboardState of Charge Displays Variable Drive Modes (Economy & Race)
Wiring HarnessDesigned on Eplan Circuit Schematics Software Manufactured in House
Data LoggerAim Evo 5 Data logger with GPS 08
Vehicle Dynamics SensorsCentral Accelerometer, GPS Speed Sensor, Individual wheel speed sensors and Individual wheel suspension displacement sensors.
Driver SensorsSteering Angle Sensor, Brake System Pressure Sensor and Accelerator Position Sensor
Powertrain SensorsBattery State of Charge, Cell temperature, Cell voltage, motor temperature, motor speed, motor position, inverter temperature…