Thread: JITTERY CAR
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Old 19-08-2013
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Quote:
Originally Posted by extrememacko View Post
Would be interesting to know why they need a special setting, Whats the difference between dc power from a nimh and dc power from a lipo?
I dont believe there is any difference in the batteries, but if you are running a brushed motor from brushless esc then thats the problem.

Brushed motors send current into the brushes, then into the commutator which causes a magnetic field, and this is then pushed round by the permanent magnets in the can of the motor.

A brushless motor is completely different.
The current from the battery (via esc) goes to three different electromagnets which have to be fired in an exact sequence in order to create the rotation. (A,B,C)

It is this sequence which is causing your jittery-ness I believe.

Your esc thinks it is needing to pulse the current to different parts of your motor because it thinks it is driving a brushless motor... when actually, it should just be sending a constant variable current to control the rotational speed of a brushed motor.

Just a guess, but hope it helps.
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