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| Joined: | Mon Nov 21st, 2005 |
| Location: | California USA |
| Posts: | 6399 |
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It was about two years ago that Ruf decided to partner with Calmotors of Camarillo, California, to develop an all-electric powertrain package for the Porsche 997. At the heart of the E-Ruf is a 200-lb. electric motor built by UQM Technologies in the U.S. The drum-shaped, brushless a.c. motor — 15.9 in. in diameter and 9.5 in. in length — resides right where the internal-combustion flat-6 normally would. Its system voltage is between 300 to 420 volts at 550 amperes; the motor peaks at 5000 rpm. It generates 150 kW (200 horsepower) and 479 lb.-ft. of torque. Energy storage onboard comes in the form of 96 lithium-ion batteries manufactured by Axeon of Great Britain. Each of these 3.3-volt cells has a life cycle of 3000 charges. In total, the battery pack takes 10 hours to fully charge at 16 amps.
