Active voltage controller for an electric motor
First Claim
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1. An apparatus comprising:
- a controller configuredto identify a desired speed for an electric motor during operation of the electric motor;
to identify a duty cycle for the desired speed;
to identify a voltage to cause the electric motor to turn at the desired speed based on the duty cycle identified for the desired speed;
to generate the duty cycle as a duty cycle command for the electric motor;
to generate a voltage command based on the duty cycle command;
to generate the voltage as a regulator voltage for a voltage regulator circuit based on the voltage command; and
to apply the voltage to the electric motor during operation of the electric motor.
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Abstract
A method for controlling an electric motor. A desired speed is identified for the electric motor during operation of the electric motor. A voltage is identified to cause the electric motor to turn at the desired speed. The voltage is applied to the electric motor and actively controlled during operation of the electric motor.
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Citations
20 Claims
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1. An apparatus comprising:
a controller configured to identify a desired speed for an electric motor during operation of the electric motor; to identify a duty cycle for the desired speed; to identify a voltage to cause the electric motor to turn at the desired speed based on the duty cycle identified for the desired speed; to generate the duty cycle as a duty cycle command for the electric motor; to generate a voltage command based on the duty cycle command; to generate the voltage as a regulator voltage for a voltage regulator circuit based on the voltage command; and to apply the voltage to the electric motor during operation of the electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electric motor system comprising:
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an electric motor; and a controller configured to identify a desired speed for the electric motor during operation of the electric motor; to identify a duty cycle for the desired speed; to identify a voltage to cause the electric motor to turn at the desired speed with the duty cycle being about 100 percent using a group of control laws based on the duty cycle identified for the desired speed; to generate the duty cycle as a duty cycle command for the electric motor; to generate a voltage command based on the duty cycle command; to generate the voltage as a regulator voltage for a voltage regulator circuit based on the voltage command; and to apply the voltage to the electric motor during operation of the electric motor with the duty cycle through the voltage regulator circuit. - View Dependent Claims (12)
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13. A method for controlling an electric motor, the method comprising:
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identifying a desired speed for the electric motor during operation of the electric motor; identifying a duty cycle for the desired speed; identifying a voltage to cause the electric motor to turn at the desired speed based on the duty cycle identified for the desired speed; generating the duty cycle as a duty cycle command for the electric motor; generating a voltage command based on the duty cycle command; generating the voltage as a regulator voltage for a voltage regulator circuit based on the voltage command; and applying the voltage to the electric motor during operation of the electric motor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification