Tesla Model S motor output

Tesla Model S motor output

Was doing some reading and came across a site. I believe it was an edmunds review that stated that the electric motor output was 185kW. Correct me if i'm wrong, but that translates to 248 hp. Been looking all over for motor output. Is this output rating correct? Seems kinda low for such a heavy car that's suppose to go 0-60 in less than 6 seconds.

Timo | 2010年10月9日

You should look at torque, not power. Torque at wheels determines the acceleration, not max power. With emotor you get approx max torque at zero RPM and it continues to be very high, nearly same, maybe even a bit higher to high speeds way over 60mph and it has only one "gear" (no gearbox, just one reduction gear to translate 14k RPM of engine to 120mph top speed).

Emotor for Roadster sport gives about 400Nm of max torque. That translates with Model S 120mph top speed at 14000 RPM with 17 inch tire to approx 4667Nm at the wheels. That's like having ICE car long first gear acceleration at full range of speeds you usually use (if I didn't mess the calculations).

It is completely different beast to drive EV than ICE car. 185kW is Roadster engine, Model S might get a bit higher torque motor (not yet produced, nobody knows), but that 185kW is plenty. Also what I read of another thread was that it actually has nearly same range as Roadster with approx same size battery (230 vs 245), so it can't be that much heavier either. You probably have 50-75mph acceleration way better than any similar priced ICE cars.

Roger_Smith | 2010年10月9日

Thanks for the response. You are right. The EV is a different beast, I will have to change the way I think when it comes to the Tesla. Thanks to you for educating me.

BYT | 2010年10月12日

I paid a visit and spoke to a Tesla sales rep at one of their showrooms. She told me the Model S will have a larger emotor then what currently exists in the Roadster. She also said we may have a model we can see and test drive in about 6 to 9 months once crash tests and road safety organizations give it the green light.

Roger_Smith | 2010年10月13日

I can see a bigger emotor seeing how the Model S is a bigger and heavier vehicle. Wish I could get a test drive when they start distribution of the Model S. However, the nearest dealer to me is D.C. and I don't feel like making the 3 hour drive through "cop land", "dear land", and "crazy roadhog jerk land" to get that test drive.

Vawlkus | 2010年10月13日

You're a lot closer than I am, I gotta go half-way across the country if I want to put an eyeball to a Tesla store.

Jaffray | 2010年10月13日

The Roadster was just in Halifax 2 weeks ago...are you on "The Rock" Vawlkus? ;)

Vawlkus | 2010年10月13日

So it WAS a Roadster..... Never heard about it until a week after the fact (ZERO news coverage).

The only store slated for Canada is in Ontario, and that's half-way across the country (when it opens of course).

Jaffray | 2010年10月14日

Boston might be closer to get a test drive.

If you check the events portion of this site, you'll see that the Halifax & Laval events were both won't help you at all, but there is an event in St. Catharines tomorrow.

rouskavich | 2010年10月28日

Muscle cars or vehicles that accelerate to 60mph at less than 5 seconds revolve around torque and bandwidth not horsepower. The reason horsepower is a unit of measurement for most vehicles is because it is the raw power that gets converted into torque and other features. When you’re looking at acceleration pay attention to torque. Most muscle cars require more torque (and horsepower) because their power band is limited to the higher RPMs. This means the car requires more "oompf" to get to that power band (speed) every time you start out or shift (manual transmissions close that gap a tiny bit depending on how good you are at maintaining those RPMs at shift). However since an electric motor has full power band at start to end, it reduces both the shifting lag (no transmission) and the extra "oompf" need to compensate for a low power band. Also the cars are much lighter than conventional vehicles thus needing lessvtorque and horsepower (watts).