ThoRR: Fully Electric Caterham Style Roadster with 272 Hp

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

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