It is an enormous thrill to develop and actually built a high performance sports car, especially when you can use state of the art propulsion technology. Mind blowing, smooth acceleration, razor sharp cornering, scaring high speeds, perfect balanced re-generative and friction braking, who wouldn’t like to be involved in such a project.

ThoRR - Electric Sports Car
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Yet, it only has been a relatively simple project for Evisol. The real challenge has been to develop, compose and actually assemble the drive train that makes it possible to properly propel this car, fully electric.

ThoRR uses a chassis that has been inspired by the Lotus Super 7 concept. This concept stands for high performance through simplicity and light weight. Because of the absence of ABS, power assisted braking, power assisted steering, any form of sound absorption, even a roof and a windshield, only the basics of a car remain.

ThoRR - Electric Sports Car
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Driving becomes a symphony composed by the drive line, the chassis, the wheels, the wind and the road. The simplicity of the car, that doesn’t even uses a gearbox, makes it possible to actually feel all the aspects of the electric drive train. Just what is needed to test the real performance of this drive train.

Technical details after the jump.

Specifications

 Motor

  • Type: Siemens 1PV5135WS28 3 Phase Induction Motor
  • Number of Poles: 4
  • Continuous Power: 67 kW – 91 hp
  • Maximum Power: 200 kW – 272 hp
  • Continuous Torque: 160 Nm
  • Maximum Torque: 450 Nm
  • RPM Range: 0 – 10.000
  • Cooling: Water/Glycol
  • Weight: 86 kg

 
 Inverter

  • Type: Evisol EVI-200
  • Nominal Voltage: 750 VDC
  • Maximum Voltage: 900 VDC
  • Maximum Output Current: 350 Arms
  • Continuous Output Current: 300 Arms @ 4kHz switching frequency
  • Maximum DC Input Current: 350 A
  • Switching Frequency: 2-8 kHz
  • Powerstage: Semikron Skiip 3 Integrated IGBT Module
  • Phases: 3
  • Cooling: Water/Glycol
  • Weight: 24 kg

 
 Battery System

  • Cell Type: Kokam Lithium Polymer
  • Nominal Cell Voltage: 3,7 VDC
  • Capacity: 40 Ah
  • Continuous Current: 10C
  • Number of Cells: 196
  • Total Battery Capacity: 29 kWh @ 100% DOD
  • Cycle Life: > 1200 @ 80% DOD
  • End of Specified Life: 80% of Original Capacity
  • On Board Charger Type: Evisol EVMC-30
  • Charger Output Power: 30 W
  • Power Factor: > 0.99 @ 30 W output power
  • Number of Chargers: 196
  • Power Requirements: 3 x 1 Phase, 110 – 240 VAC, 50 – 60 Hz, > 6 kW
  • Battery Management System: Cell Charging with EVMC-30. Communication with EVI-200
  • Features BMS on Cell Level: SOC, SOH, Temperature, Voltage, Charge Current, Discharge Current, Cell Connections, Fault Indication, User-Interface• Battery Modules: 14 Cell Modules of 14 Cells, Max. Module Voltage < 60 VDC
  • Security System: 14 Normally Open (NO) module contactors, 2 NO Main contactors, Opening of Module Contactors @ Inverter Switch Off, @ Opening of Battery Boxes, @ Crash or Roll Over
  • Battery Housing: 4 Dedicated Air Cooled Boxes
  • Cooling: Regulated Forced Air Cooling
  • Weight battery system: 280 kg 

 Final drive

  • Rear Wheel Drive
  • Direct Drive, no gearbox
  • Differential: Ford Sierra 1 : 3,92

 Chassis

  • Type: Tubular Space Frame (60kg)

 
 Suspension

  • Front: Adjustable Double Wishbone
  • Rear: Adjustable Double Wishbone
  • Spring / Shock Absorber: Adjustable

 
 Geometry

  • Wheelbase: 2373 mm
  • Front Track: 1451 mm
  • Rear Track: 1472 mm
  • Maximum Height: 111 cm (Roll Bar)
  • Minimum Ground Clearance: 54 mm (Flat Ground Plate)

 
 Steering

  • Rack and Pinion: 2,7 turns lock to lock

 
 Vehicle Weight

  • Total Vehicle Weight: 755 kg

 
 Wheels and Tyres

  • Wheel: Aluminium Alloy 6J X 15’’
  • Tyre: Toyo Proxes 195 / 50 R15

 
 Direct Emissions

  • CO2: 0 gr / km
  • NOx: 0 gr / km
  • Particles: 0 gr / km

 
 Range

  • Range New European Driving Cycle: 200 km
  • Range @ 120 km/h: 140 km
  • Range @ 80 km/h: 230 km
What do you think?
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