G.H.

Technically, electric cars don’t have engines; they have motors. As much as we hear motor and engine used interchangeably, they are not the same. For example, engines are under the hood of just about every car on the road. They use a fuel, like gasoline or diesel, that combusts to perform work. Motors are used in electric cars, power drills, R/C cars, etc., and use electrical energy (supplied by a battery) to perform work. There are multiple types of electric motors.

We’ll take a quick look at the Tesla roadster, seeing as it’s currently the sole electric-only car available in the U.S. Powering the Tesla is a large electric motor, which is in turn powered by a 375-volt battery.

Tesla’s electric motor makes 185kw, which is the equivalent of roughly 250 hp. By comparison, Toyota’s Prius gasoline/electric hybrid uses a motor that makes 50kw, around 67 horsepower.

Learn more

Answered by Joe Bruzek on February 25, 2008 in Green/Hybrid Cars , How Does That Work? , I'm Just Wondering , What Does This Mean? | Permalink

Comments

Tesla motor's electric motor is an induction motor, which is different from the ones used for the Priusd. i believe the pPrius uses an interior permanent magnet motor, which is a synchronous motor. Induction motor is asynchronous, which means it runs at a slip, or a speed a few RPM's slower than the synrchronous speed. The main difference to Tesla is that it is a lot cheaper because magnets are expensive. The motor is driven by an electronic drive, it ssynthesizes the AC current feeding the motor so that the frequency, or the synchronous speed is variable, and this is where their speed variation capability originates. The motor is also made with a copper rotor, which makes the motor more efficient, copper resistivity is less than that of aluminum.

Hello,

where could you see the spec sheet on this electric motor?
I am looking to remove my Twin-Cam Lotus Europa and put in an electric motor. Thanks - Scott

Where would one go to buy a n induction motor only??

I want to know that how the electric engine works in an electric vehicles "Technically"

Go to the future engine...

Have a Comment to Add?

Please remember a few rules before posting comments:

  • If you don't want people to see your email address, leave the field empty.
  • Do not mention specific car dealers by name.
  • Try to be civil to your fellow blog readers.
  • Stay on topic, please only comment about the specified topic in the blog post.

Thank You!

Your question has been successfully submitted to Ask.cars.com. It will now be reviewed by our editors and we'll answer it soon if we think it's a useful question. You will be notified via e-mail when the answer is posted. Ask.cars.com tackles your questions about new cars and the car-buying process. Unfortunately we can't answer questions regarding:

  • Used cars.
  • Most aftermarket products.
  • Mechanical issues. You can visit our friends at Car Talk to discuss your mechanical problems.
Thanks for your interest.

Ask

Have our experts answer any of your questions about new cars.

Don't worry — we won't publish your last name or email.

Maintenance Advice
Get answers from the
Car Talk Community