Well-behaved sensorless motor start

A computer-implemented method for starting an AC electric motor, the method comprising:

• receiving a control signal for starting the motor;
• applying, in response to receiving the control signal for starting the motor, a first active short profile to the motor during a first period of time;
• applying, after the first period of time, a first current profile to the motor during a second period of time;
• applying, after the second period of time, a second active short profile to the motor during a third period of time;
• and
• applying, after the third period of time, open-loop control of the motor based on a crank-up profile wherein a speed of the rotor of the motor is increased from essentially zero to a speed threshold during a fifth period of time.