Tesla Roadster to be a one-speed car

Iria · Jan 25, 2008, 08:11 AM

Source: News.com
____________
The engineers at Tesla Motors have designed a new single-speed transmission for its sports car that will let it hit the promised zero to 60 mph in four seconds.

CDsDontBurn · Jan 25, 2008, 09:58 AM

that looks nice!

Grace · Jan 25, 2008, 11:18 AM

Quite doable for a car when using an electric engine. Those engines actually work the opposite way combustion engines do; the lower the rotational speed, the better the torque. As the rotational speed goes up, torque goes down. So (if the engine is sophisticated, high speed and performs somewhat linear) you only need a single long differential gear on the driving axle and you are done. But these gears and axles must be able to withstand insane torque numbers unless they limit the engine's potential by reducing the rotor's magnetic impedance or the stator's magnetic field through some kind of control unit.

I'm an electrics geek but I don't know &$%# about cars...but I actually like this one, it looks cute. I bet the price tag will be quite a number!

Jan 25, 2008, 08:11 AM	#1
Iria DriverHeaven Extreme Member Join Date: Apr 2004 Posts: 7,275 Rep Power: 87	Tesla Roadster to be a one-speed car Source: News.com ____________ The engineers at Tesla Motors have designed a new single-speed transmission for its sports car that will let it hit the promised zero to 60 mph in four seconds.

Jan 25, 2008, 09:58 AM	#2
CDsDontBurn 127.0.0.1 Join Date: May 2003 Location: Southern California Posts: 22,458 Rep Power: 202 System Specs	that looks nice! __________________ Her First Day \| A year later

Jan 25, 2008, 11:18 AM	#3
Grace HH's Tomboy Join Date: Nov 2005 Location: Anywhere but in my house! Posts: 776 Rep Power: 54	Quite doable for a car when using an electric engine. Those engines actually work the opposite way combustion engines do; the lower the rotational speed, the better the torque. As the rotational speed goes up, torque goes down. So (if the engine is sophisticated, high speed and performs somewhat linear) you only need a single long differential gear on the driving axle and you are done. But these gears and axles must be able to withstand insane torque numbers unless they limit the engine's potential by reducing the rotor's magnetic impedance or the stator's magnetic field through some kind of control unit. I'm an electrics geek but I don't know &$%# about cars...but I actually like this one, it looks cute. I bet the price tag will be quite a number!