Combining a Lotus Super 7 type chassis and looks with a high-tech Siemens electric motor and a set of Lithium Polymer batteries, Evisol’s ThoRR concept is yet another fully electric sportscar. Yet, like the Caterham and the original Lotus Super 7 roadster, the ThoRR does without any modern “luxuries” such as 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.
The Siemens electric motor has a continuous output of 91 Hp and a maximum output of 272 Hp while torque figures are 160 Nm and 450 Nm respectively. The ThoRR, which does not have a gearbox, weighs in at just 755 kg or 1,664 lbs so despite the fact that Evisol hasn’t announced any performance figures, we presume that it will probably be pretty fast. -Continued
The company does mention however that under the New European Driving Cycle tests, its batteries are good enough to power it for 200 km or 124 miles.
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
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