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What does the Model S use then?
by Roritharr 10y ago
What does the Model S use then?
- ferongr 10y agoA way more powerful motor and power electronics that allow for a "taller" (smaller reduction ratio) final drive.
- ahakki 10y agoIIRC the AWD versions (recognizable by a 'D' at the end of the model name, as in P90D) use 2 motors, one for the front and one for the rear. These two motors have different gear ratios, so one is more opimized for torque and the other for high speed. The rear wheel drive versions have a single ratio which has to strike a balance between speed and torque. This is also the reason that the AWD versions are faster than the RWD even though they are heavier due to the additional motors.
- andruby 10y agoTesla wanted to use a 2-gear transmission for the original roadster, but they couldn't find one that could handle the massive torque, so they ended up with a single ratio gearbox. Source: http://www.autoblog.com/2008/01/23/breaking-tesla-has-a-solution-for-their-transmission-woes-get/ http://www.autoblog.com/2008/01/23/breaking-tesla-has-a-solu... and Ashley Vance's biography of Elon Musk.