ABOUT
The Tesla Roadster is a fully electric sports car, and is the first car produced by electric car firm Tesla Motors. The car can travel 225 mi (362 km)on a single charge of its lithium-ion battery pack and accelerate from 0-60 mph (97 km/h) in 3.9 seconds with the development transmission.
Motor
* Type: 3-phase, 4-pole electric motor
* Max net power: 248 hp (185 kW)
* Max RPM: 13,000
* Max torque, 200 ft·lbf (270 N·m) is made from 0-6,000 rpm
* Efficiency: 90% average, 80% at peak power
[edit] Transmission
* Magna two-speed electrically actuated (no clutch pedal) sequential manual with final drive.
* Constant mesh gears and inertia lock key type synchromesh
Performance
* Acceleration time: 0–60 mph (0–97 km/h) in 3.9 seconds. Some prototypes and initial production 2008 Roadsters were limited to 5.7 second 0–60 mph acceleration.
* Top speed: electronically limited at 125 mph (201 km/h)
* Range: 221 miles (356 km) on the EPA combined cycle
* Weight and distribution: about 2,700 lb (1,220 kg), centered in front of the rear axle
* Rear wheel drive
Battery system
* Cell type: lithium ion, 18650 form-factor (18mm diameter by 65 mm length). Most laptop computer batteries already use this type of lithium-ion cell.
* Cell count: 6,831 cells arranged into 11 modules connected in series; each module contains 9 "bricks" connected in series; each "brick" contains 69 cells connected in parallel (11S 9S 69P).
* Full-charge time: 3½ hours.
* Estimated life: over 100,000 miles (160,000 km).
* Electric energy: about 53 kW·h
* Total mass: between 900 and 1000 lb (400-450 kg)
* The pack is designed to prevent catastrophic cell failures from propagating to adjacent cells, even when the cooling system is off.
* Tesla Motors had planned to sell the battery system to TH!NK and possibly others through its Tesla Energy Group division. That plan was put on hold by interim CEO Michael Marks in September 2007.
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