position control with a brush motor

[nal]

how to control a motor ? i want to control a brush motor of printer. to control its position.but i cannot driver it well .

i use Fuzzy logid PID algorithm。it shake frequency . and start velocity is very high. i want to control it smooth.

someone have any experience on dc motor position control ,plase help .i very need your help. or i will go mad.

thanks everyone.

my email:nailson@yeah.net

[Nico_elect]

Hi, I had the same problem. You should use the PID to control the velocity, and, make a algoritm to control position through volociti.

I made function for go to a position. whit XX velocity at XX aceleration.