Team name: Revolve NTNU
University: Norwegian University of Science and Technology
Class: Class 1
Car Number: 11
Country: Norway
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Length: 3176
Height: 1269
Width: 1416
Wheelbase: 1600
Track: 1200/1170
Car Weight: 174
Weight Distribution: 114/135
Suspension: Double unequal length A-arm with pull rod actuated spring and damper.
Tyres: 6.0/18.0-10 LC0 Hoosier
Wheels: 10×7″ 3-piece rim with CFRP rim shell and aluminium wheel center
Brakes: Hub mounted disk brakes front and rear
Chassis: Full CFRP Monocoque
Engine: Enstroj EMRAX 228 High Voltage, Liquid Cooled
Bore: 50 kW continuous power
Stroke: –
Cylinders: –
CC: –
Fuel Type: Electric
Fuel System: 7.45 kWh Battery in 144S2P, 532.8 Vnom.
Max Power: 100 kW @ 5000 rpm
Max Torque: 240 Nm @ 2000 rpm
Transmission: Two stage straight cut spur gear
Differential: Drexler limited slip differential Formula Student V.1
Final Drive:3,67:1
Team Profile:
A team of 46 members has worked very hard to develop a whole new car from scratch. Taking on the challenge to design our first ever electric racecar featuring our first carbon fiber monocoque, has demanded the entire team to cooperate close the entire year. Weight reduction has been a large focus for the 2014 season. The car features carbon fiber rim shells, drive shafts, steering wheel, seat and wing package. In addition to the carbon fiber parts the battery cells have an energy density of 190 Wh/kg and the batterypackage with 7,4 kWh has a total weight of 45 kg. Unsprung mass is also greatly reduced compared to last year by reducing wheel size to 10 inch, self-designed carbon fiber rims and 3D-printed titanium uprights. Dynamics are also improved by a self-developed adaptive suspension system, only adding 400 grams to the weight of the car. All electronics, data aquisition and control functions are self-designed, programmed and produced and is a development from our 2013 system. Overall the car is a big leap forward in most directions, and the team has worked really hard to be able to prepare a competitive car for FSUK.
Additional Information
The car has a audio driver feedback system, which together with the color screen in the dashboard feeds information to the driver, in addition to being a cool gimmick in the paddock.
The core team started to work with the car in june 2013, and used FSUK and FSG as important input events, this was crucial in order to manage the big transition in a year.
The team will also be competing at FSE in germany later in the summer.
The teams first ever electric car and first ever monocoque
Weight reduced to 174 kg from 250 kg last year
