Fan motor control

1. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:

a motor configured to drive rotation of a fan; and

an HVAC controller configured to control operation of the HVAC system, wherein the HVAC controller is configured to:

receive a first input indicative of a first detected value of a first operating parameter of the motor at a first point in time;

determine an operating mode target value of the HVAC system;

calculate a first target value of a second operating parameter of the motor based on a first iteration of a control algorithm that receives the first input indicative of the first detected value of the first operating parameter of the motor at the first point in time and a second input indicative of the operating mode target value of the HVAC system;

control operation of the motor to the first target value of the second operating parameter of the motor such that the first operating parameter of the motor changes;

receive a third input indicative of a second detected value of the first operating parameter of the motor at a second point in time after the first point in time;

calculate a second target value of the second operating parameter of the motor based on a second iteration of the control algorithm that receives the third input indicative of the second detected value of the first operating parameter of the motor at the second point in time and the second input indicative of the operating mode target value of the HVAC system; and

control operation of the motor to the second target value of the second operating parameter of the motor such that the HVAC system is operated at the operating mode target value.

2. The HVAC system of claim 1 , wherein the HVAC controller is configured to determine the operating mode target value of the HVAC system by determining a constant airflow mode target value.

3. The HVAC system of claim 2 , wherein the HVAC controller is configured to calculate the first target value of the second operating parameter of the motor based on the first iteration of the control algorithm by calculating a torque output target value of the motor.

4. The HVAC system of claim 1 , wherein the HVAC controller is configured to determine the operating mode target value of the HVAC system by determining a constant power consumption mode target value.

5. The HVAC system of claim 1 , wherein the HVAC controller is configured to determine the operating mode target value of the HVAC system by determining a constant sound output mode target value.

6. The HVAC system of claim 5 , wherein the constant sound output mode target value comprises a constant inlet sound output mode target value, a constant radiated sound output mode target value, a constant discharge sound output mode target value, or a constant total sound output mode target value.

7. The HVAC system of claim 1 , wherein the HVAC controller is configured to calculate the first target value of the second operating parameter of the motor based on the first iteration of the control algorithm by calculating a revolutions-per-minute (RPM) target value of the motor.

8. The HVAC system of claim 1 , wherein the HVAC controller is configured to control a damper actuator of the HVAC system, a valve of the HVAC system, or both.

9. The HVAC system of claim 1 , wherein the HVAC controller is configured to calculate the first target value of the second operating parameter of the motor based on the first iteration of the control algorithm by employing a non-linear, two variable regression analysis utilizing the control algorithm.

10. The HVAC system of claim 1 , comprising a sensor configured to detect the first detected value of the first operating parameter of the motor at the first point in time, wherein the HVAC controller is configured to receive the first input indicative of the first detected value of the first operating parameter of the motor from the sensor.

11. The HVAC system of claim 1 , wherein the first operating parameter of the motor corresponds to a torque of the motor and the second operating parameter of the motor corresponds to a revolutions-per-minute (RPM) of the motor.

12. The HVAC system of claim 1 , wherein the first operating parameter of the motor corresponds to a revolutions-per-minute (RPM) of the motor and the second operating parameter of the motor corresponds to a torque of the motor.

13. A control system for a heating, ventilation, and/or air conditioning (HVAC) system, comprising:

a controller configured to:

receive a first input indicative of a first detected value of a first operating parameter of a fan motor at a first point in time;

determine an operating mode target value of the HVAC system;

calculate a first target value of a second operating parameter of the fan motor based on a first iteration of a control algorithm that receives the first input indicative of the first detected value of the first operating parameter of the fan motor at the first point in time and a second input indicative of the operating mode target value of the HVAC system;

control operation of the fan motor to the first target value of the second operating parameter such that the first operating parameter of the fan motor changes;

receive a third input indicative of a second detected value of the first operating parameter of the fan motor at a second point in time after the first point in time;

calculate a second target value of the second operating parameter of the fan motor based on a second iteration of the control algorithm that receives the third input indicative of the second detected value of the first operating parameter of the fan motor at the second point in time and the second input indicative of the operating mode target value of the HVAC system; and

control operation of the fan motor to the second target value of the second operating parameter such that the HVAC system is operated at the operating mode target value.

14. The control system of claim 13 , wherein the controller comprises an HVAC unit controller.

15. The control system of claim 13 , wherein the controller is configured to determine the operating mode target value of the HVAC system by determining a constant airflow mode target value.

16. The control system of claim 15 , wherein the controller is configured to calculate the first target value of the second operating parameter of the fan motor based on the first iteration of the control algorithm by calculating a torque output target value of the fan motor.

17. The control system of claim 13 , wherein the controller is configured to determine the operating mode target value of the HVAC system by determining a constant power consumption mode target value.

18. The control system of claim 13 , wherein the controller is configured to determine the operating mode target value of the HVAC system by determining a constant sound output mode target value.

19. The control system of claim 18 , wherein the constant sound output mode target value comprises a constant radiated sound output mode target value, a constant discharge sound output mode target value, or a constant total sound output mode target value.

20. The control system of claim 13 , wherein the controller is configured to calculate the first target value of the second operating parameter of the fan motor based on the first iteration of the control algorithm by calculating a torque output target value of the fan motor.

21. The HVAC system of claim 13 , wherein the controller is configured to calculate the first target value of the second operating parameter of the fan motor based on the first iteration of the control algorithm by employing a non-linear, two variable regression analysis utilizing the control algorithm.

22. The control system of claim 13 , comprising a sensor configured to detect the first detected value of the operating parameter of the fan motor at the first point in time, and wherein the controller is configured to receive the first input indicative of the first detected value of the first operating parameter from the sensor.

23. A non-transitory computer readable storage media having computer-executable instructions that, when executed by a processor, perform a method of controlling a heating, ventilation, and/or air conditioning (HVAC) system, the instructions comprising:

determining an operating mode target value of the HVAC system;

receiving a first input indicative of a first detected value of a first operating parameter of a motor at a first point in time, the motor being configured to drive rotation of a fan;

calculating, based on a first iteration of a control algorithm that receives the first input indicative of the first detected value of the first operating parameter of the motor at the first point in time and a second input indicative of the operating mode target value of the HVAC system, a first target value of a second operating parameter of the motor;

controlling operation of the motor to the first target value of the second operating parameter of the motor such that the first operating parameter of the motor changes;

receiving a third input indicative of a second detected value of the first operating parameter of the motor at a second point in time after the first point in time;

calculating, based on a second iteration of the control algorithm that receives the third input indicative of the second detected value of the first operating parameter of the motor at the second point in time and the second input indicative of the operating mode target value of the HVAC system, a second target value of a the second operating parameter of the motor; and

controlling operation of the motor to the second target value of the second operating parameter of the motor such that the HVAC system is operated at the operating mode target value of the HVAC system.

24. The non-transitory computer readable storage media of claim 23 , wherein receiving the operating mode target value of the HVAC system comprises receiving a constant airflow mode target value.

25. The non-transitory computer readable storage media of claim 23 , wherein receiving the operating mode target value of the HVAC system comprises receiving a constant power consumption mode target value.

26. The non-transitory computer readable storage media of claim 23 , wherein receiving the operating mode target value of the HVAC system comprises receiving a constant sound output mode target value.

27. The non-transitory computer readable storage media of claim 23 , wherein calculating the first target value of the second operating parameter of the motor based on the first iteration of the control algorithm comprises calculating a torque output target value of the fan motor.

28. The non-transitory computer readable storage media of claim 23 , wherein calculating, based on the first iteration of the control algorithm, the first target value of the second operating parameter of the motor comprises employing a non-linear, two variable regression analysis utilizing the control algorithm.

29. The non-transitory computer readable storage media of claim 23 , wherein the detected first operating parameter of the motor corresponds to a revolutions-per-minute (RPM) of the motor, and wherein the second operating parameter of the motor corresponds to a torque output of the motor.

30. The non-transitory computer readable storage media of claim 23 , wherein the first operating parameter of the motor corresponds to a torque output of the motor, and wherein the second operating parameter of the motor corresponds to a revolutions-per-minute (RPM) of the motor.