CPC B25F 5/00 (2013.01) [H02K 11/27 (2016.01); H02K 21/16 (2013.01); H02P 6/182 (2013.01); H02P 21/18 (2016.02); H02P 2203/03 (2013.01)] | 20 Claims |
1. A method for automatic control switching for driving a sensorless motor of a power tool, the method comprising:
determining, using a motor controller, a first load point based on a user input;
determining, using the motor controller, a first motor control technique corresponding to the first load point;
driving the sensorless motor based on the first motor control technique;
determining, using the motor controller, a change from the first load point to a second load point, wherein the first load point and the second load point are determined based on a speed application and a torque application selected by the user input;
determining, using the motor controller, a second motor control technique corresponding to the second load point; and
driving the sensorless motor based on the second motor control technique.
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