Patent ID: 11879472
Assignee: REGAL BELOIT AMERICA, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H  Y | IPC F  H

Claim 15:
16. An electric motor for a constant fluid flow system, said electric motor comprising:
a rotor coupled to a fluid moving apparatus configured to generate a fluid flow upon rotation of said rotor;
a stator;
a drive circuit configured to regulate electrical power supplied to said stator to turn said rotor; and
a processor coupled to said drive circuit and configured to:
control said drive circuit to turn said rotor at a first speed and a first torque, and at a second speed and a second torque;
receive a first fluid flow rate value corresponding to the first speed and the first torque;
determine a second fluid flow rate value based on a ratio of the first fluid flow rate value to the first speed, and corresponding to the second speed and the second torque;
define an algorithm, in a memory coupled to the processor, based on the first speed, the first torque, the first fluid flow rate value, the second speed, the second torque, and the second fluid flow rate value;
compute an operating set point for a demanded fluid flow rate using the algorithm; and
control said drive circuit based on the operating set point to supply electrical power to said stator and to operate the fluid moving apparatus to generate the fluid flow.