Venturi Presents Formula E Electric Motor

AUG 16 2015 BY MARK KANE 11

Venturi Formula E Team

Venturi Formula E Team

Venturi Formula E Team unveiled its own electric motor VM200, designed for the Formula E racer.

From season two on, each team will get the chance to develop its own drivetrain instead of using the basic setup from season one. And Venturi, besides having its own team, is also one of several constructors.

Ventur’s VM200 is a 200 kW motor (power is limited by rules), which spins up to 20,000 rpm! Peak torque stands at 145 Nm.

The motor supplied by McLaren Applied Technologies for the first season to all teams had a lower top speed of 17,500 rpm and 140 Nm of torque.

There is also one more difference in the gearbox – 4 gears in Venturi, while McLaren had 5.


Categories: Racing


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11 Comments on "Venturi Presents Formula E Electric Motor"

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145 Nm of torque seems ridiculous! No mistake here?!

The formula is : Power = torque * rotation speed.

In an electric motor, torque is proportional to current.
Size (and weight) are also roughly proportional to current.

So, if you want a high power and low weight engine, you choose a high rev one … and you have low torque.
With your gearbox, you lower the speed and increase your torque : example : 10 times slower with 10 times the torque.

Parallel with ICE Formula 1 engine : in 2006, the Renault RS26 could reach 19500 RPM, and 750HP. At this speed, the torque is ~228 Nm.

convert 145 Nm to ft lbs = just over 106 ft lbs! Almost Less than the Turbo Pontiac Firefly from back in 2000!

For a 200 kW motor, that sounds pretty weak!
The HPEVS AC-35 Motor delivers peak torque of over 120 Lb Ft at 96V x 650A at 2800 RPM! See the motors and PDF graphs here:

We’re also talking about a lightweight race car, not a 5-passenger people mover. By limiting the power, that makes the Formula E teams think even more carefully about weight and aerodynamics.

There must be a good reason but most production cars today have more torque even ICE cars…

wow. I never expected the see the day where my commuter leaf has more torque (280Nm!!!) than a race car!

But that’s probably where the 4-speed tranny comes in. I wonder what would the performance be like if we took a formula E transmission and added it to the leaf?

And judging by the size of the orange cables, this motor must be pretty small!

I too am surprised to see that my ZOE with only 65kW delivers 220nm.

I suspect the reduction gear for a 20,000 rpm capable motor may be a bit more agressive, giving higher torque at the wheels.

They are quoting the motor output, while most EV’s quote the output of the gear box. The Leaf has an 80kW motor and 210ft/lbs of torque, while the e-Golf has an 85kW motor and 199ft/lbs of torque.

And with multiple gears, you would have to know the gear ratio(s) to know the output torque.

It will be interesting to see how the various drivetrains work, and what transmissions make more sense. The first season showed a progression of the driver learning to use the battery and some of then started to coast and then brake to conserve battery so they could then push harder later in the race.

I hope they don’t limit them to 150kW during the race. I am sure they do not want anybody to run the batteries down – so I hope the supplied battery packs improve so they can go faster. And I hope they rethink the tire and aero design, so that they can carry more speed through the turns, and lower the lap times that way.

Assuming a 225 km/h (140mph) top speed and 18″ tires, as it was last season. The highest reduction gear is 2.4384, which would lead to a torque of 354Nm (245LbFt).
And that’s just the highest gear. It’s safe to say it has a lot more torque at lower speeds.

Italia’s Motomatica has :-
31 kg weight
250 kW max power in standard conditions
380 kW overboost for 2 seconds

250KW is 333hp
380KW is 506hp.

C’mon girls. Stop whining about shopping trolleys. I need this in my electric bike.