Challenge Record
The University Alaska Fairbanks Nanook EV team has converted another snowmobile to electric power. Our new machine has a 48 km (30 mi) range at 32 km/h (20 mi/h). Building on last year’s success (winning Best Range with our original model), we started this project with a lighter chassis: a Ski-Doo T...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.460.9287 http://www.mtukrc.org/download/uaf/uaf_ze_design_paper_2010.pdf |
| Summary: | The University Alaska Fairbanks Nanook EV team has converted another snowmobile to electric power. Our new machine has a 48 km (30 mi) range at 32 km/h (20 mi/h). Building on last year’s success (winning Best Range with our original model), we started this project with a lighter chassis: a Ski-Doo Tundra 300F at 167 kg (370 lb), and a stronger motor, a NetGain WarP7 DC-series motor. The motor is connected directly to the sprocket shaft using two Gates Tri-power BX belts. The accumulator is configured to support 211 V using 396 Headway 10 A·h Lithium-ion cells, which utilize Lithium Iron Phosphate (LiFePO4) chemistry. This 12.672 kW·h battery pack is the largest used in any electric snowmobile to date. The batteries are connected to a 249 V Logisystems motor controller to power the motor. The snowmobile is a respectable 295 kg (650 lb). It has a top speed of 80 km/h (50 mi/h) and it is pretty quiet at 54 dB. This snowmobile is poised to do very well in the competition. Table 1 summarizes our goals. |
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