Method of detecting the angle of rotation and load torque of a D

Details Method of detecting the angle of rotation and load torque of a D Method of detecting the angle of rotation and load torque of a D

1997-06-04

2000-01-18

Martin, David

Electricity: motive power systems

Motor load, armature current or force control during...

318432, 318434, 701 41, H02P 104

Patent

active

06016042&

ABSTRACT:
A method of detecting the angle of rotation of a DC motor includes the steps of: driving the DC motor with a predetermined torque for a predetermined period of time which is selected so that the angular acceleration of the DC motor is substantially constant during the above period of time; and calculating the angle of rotation of the DC motor from the driving time period and the voltage generated by the DC motor after the driving of the DC motor is stopped. This method makes it possible to accurately detect the angle of rotation and the load torque using an apparatus having a simple structure.

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