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US 11,143,427 B2Granted
Fan motor control
AssigneeJohnson Controls Technology Company
InventorsTimothy J. Wilson, Joshua J. Yagy
Life of this patent
Estimating the term…
Abstract
A heating, ventilation, and/or air conditioning (HVAC) system includes a motor configured to drive rotation of a fan, and an HVAC controller configured to control operation of the HVAC system. The HVAC controller is configured to determine an operating mode target value of the HVAC system, calculate an operating parameter target value of the motor based on the operating mode target value of the HVAC system and a control algorithm of the HVAC controller, and control operation of the motor toward or at the operating parameter target value.
Claims30
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.
8 more elements
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.
6 more elements
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.
5 more elements
Dependencies are inferred from the claim text.