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what kind of motor is inside this bike rollers?

Lucky-Luka

Member
Hi all
what is the type of motor inside this kind of smart bike roller capable of simulating the torque needed for different routes?
A brushless motor?
thanks
 

rjenkinsgb

Well-Known Member
Most Helpful Member
It's not necessarily a conventional motor, even - many simple riding emulators just use a brake.

A more intelligent or interactive one is probably using an alternator or dynamo, which can be gently driver to overcome friction when needed to simulate coasting.

It could be a BDLC style, but the majority of the time it's acting as a generator and load dumping system, not being electrically driven as with a normal motor.

I'd expect something with either many more poles than a typical BDLC servo, or a higher resolution encoder for smoother current control - not just a simple three switch hall setup, as commonly used.

Or it could even have a combination of electrically controlled friction brake and a small "coasting" motor, to avoid any notching due to commutation?
 

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