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Lotus Evija

The project brief

The brief

In 2020, Williams Advanced Engineering supported a strategic technical partnership with Lotus with the companies sharing research and development into advanced propulsion technologies. At the heart of the Evija is an ultra-advanced all-electric powertrain, developed by Williams Advanced Engineering. The battery pack is mid-mounted immediately behind the two seats and supplies energy directly to four powerful e-motors. The highly efficient system is the lightest, most power dense, electric power package ever fitted to a road car

The work

  • Thermo-Fluid Design & Development, Extensive CFD work, 10 System Simulations
  • Active Rear Wing (including DRS), External Vehicle Aerodynamics, Hydraulic System
  • High-Voltage Cooling Systems
  • Cabin Comfort & HVAC Unit
  • Extensive Track Testing

1.4mw E-Drive (Motors/Transmission)

Most power-dense e-axles are only made possible by the level of integration; shared internal coolant circuits and use of the housing of the e-drives act as a structural bridge between the anti-vibration mounted transmissions

2000kw Battery

The world’s most power-dense battery offering 2000kW of peak power, ensuring sufficient, sustained power for world-beating lap times and dynamic road driving

High Performance – WAE BMS

WAE developed a uniquely ultra-light performance ISO26262 ASIL C compliant BMU to enable industry leading intelligence, resulting in a class-leading battery performance, data insights and safety

HV Charging 

Fastest charging vehicle with sustained charging at >350kW with a peak of 500kW

4wWheel Torque Vectoring

Motorsport derived vehcile control shifts torque both fore-aft and from side to side, eliminating the need for costly and heavy differnetials whilst ensuring optimal vehicle performance 

Adaptable – WAE VCM

WAE developed Vehicle Control Module, meeting ISO26262 and ASIL requirements. Ideally suited to high performance EV powertrain and vehicle systems

The outcome

Improved Vehicle Cooling

Improved On-Track Performance through Aerodynamic Gains

Improved Driver Comfort through HVAC Improvements

Wing Mirrors Changed to Cameras to Reduce Drag

Case studies

Thales Biological Surveillance Collector System
Thales Biological Surveillance Collector System

Using expertise in Computational Fluid Dynamics (CFD), as well as testing in one of Williams’ two wind tunnels, WAE was responsible ... Find out more

BAE Systems Hawk
BAE Systems Hawk

Working in collaboration with BAE Systems, Williams Advanced Engineering has unveiled a revolutionary cockpit simulator that will be ... Find out more

General Dynamics Scout SV-Core Infrastructure Distribution System
General Dynamics Scout SV-Core Infrastructure Distribution System

Williams Advanced Engineering were engaged to support a significant UK MoD armoured vehicle production programme. Find out more

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