Sir/Madam

i have a dayton a.c. shaded pole single phase motor with 1/150HP,
3000
RPM, 230 V, 60 Hz frequency and Full Load Amps
0.24 . I want to control the torque of this motor through program.For
that i have feedback from motor is current to the motor . I want to
control the torque use this current as feedback.for that I need a
equation connecting torque and the current.