Massachusetts Institute of Technology
Sign in | Create Account

B.W.D. Scooter Test Drive #2

The B.W.D. Scooter is an electric kick scooter with Both Wheels Driven by custom-built brushless DC hub motors. For more information, visit:
http://web.mit.edu/first/scooter

The hub motors built into each wheel are 3-phase, 14-pole brushless outrunners; the inside of the motor is stationary and the outside spins. The design is based heavily on Charles Guan's Project RazEr. Each motor is made of stacks of thin, laser cut steel laminations donated by Proto Laminations. They are direct-drive, so there is no need for chain or belt, but a practical consequence of this is an inherent 1:1 gear ratio. To get a lot of torque with no gear reduction, we chose to use two motors and strong NdFeB magnets.

Comments (0)

It looks like no one has posted a comment yet. You can be the first!

You need to log in, in order to post comments. If you don’t have an account yet, sign up now!

scolton

scolton

Category: Engineering | Updated almost 3 years ago

Created
August 23, 2009 11:54
Category
Tags
License
All Rights Reserved (What is this?)
Additional Files


Viewed
27661 times

More from scolton

Custom Brushless Motor Controller Testing

Custom Brushless Motor Controller T...

Added over 5 years ago | 00:01:09 | 15811 views

Something you CAN ride.

Something you CAN ride.

Added over 7 years ago | 00:01:58 | 11852 views

Rookie vs. the RC Car (...in slow motion.)

Rookie vs. the RC Car (...in slow m...

Added almost 5 years ago | 00:00:43 | 13375 views

RC Car Tire Spin, 600FPS

RC Car Tire Spin, 600FPS

Added 5 years ago | 00:00:10 | 18100 views

The Cap Kart is coming...

The Cap Kart is coming...

Added over 6 years ago | 00:00:20 | 13256 views

Maker Faire NY 2011 - Random Vehicles

Maker Faire NY 2011 - Random Vehicles

Added 3 years ago | 00:02:40 | 4604 views