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- Nachgewiesen in: USPTO Patent Grants
- Sprachen: English
- Patent Number: 11961,383
- Publication Date: April 16, 2024
- Appl. No: 17/331236
- Application Filed: May 26, 2021
- Assignees: Johnson Controls Tyco IP Holdings LLP (Milwaukee, WI, US)
- Claim: 1. An actuator in an HVAC system configured to modify an environmental condition of a building, the actuator comprising: a motor; a drive device driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions; and a processing circuit coupled to the motor and configured to: transmit control signals to operate the motor to drive the HVAC component between a first position and a second position; monitor temperature data received from one or more temperature sensors; and modify a control logic function of the actuator for at least one of the motor or the drive device in response to the monitored temperature data, wherein modifying the control logic function comprises modulating the actuator using a different control logic function in response to a determination that temperature data is at least one of unexpectedly positive or unexpectedly negative.
- Claim: 2. The actuator of claim 1 , wherein the HVAC component is at least one of a damper, a valve, a fan, or a pump.
- Claim: 3. The actuator of claim 1 , wherein the processing circuit is further configured to transmit an alarm signal based on the determining that the temperature data does not meet an expected performance criterion, wherein the alarm signal is configured to illuminate at least one notification light emitting diode (LED).
- Claim: 4. The actuator of claim 1 , wherein the processing circuit is further configured to transmit an alarm signal based on the determining that the temperature data does not meet an expected performance criterion, wherein the alarm signal is configured to transmit a message to at least one of a building management system (BMS) controller or a building automation system (BAS).
- Claim: 5. The actuator of claim 1 , wherein determining that the temperature data does not meet an expected performance criterion comprises determining that a slope of the temperature data is at least one of the unexpectedly positive or the unexpectedly negative.
- Claim: 6. The actuator of claim 5 , wherein modulating the actuator using a different control logic function comprises reversing the control logic function in response to a determination that the slope of the temperature data is at least one of the unexpectedly positive or the unexpectedly negative.
- Claim: 7. The actuator of claim 1 , wherein determining that the temperature data does not meet an expected performance criterion comprises determining that the temperature data exceeds at least one of a low temperature threshold or a high temperature threshold.
- Claim: 8. The actuator of claim 1 , wherein the one or more temperature sensors comprises a supply air temperature sensor.
- Claim: 9. The actuator of claim 1 , wherein the one or more temperature sensors comprises a zone air temperature sensor.
- Claim: 10. The actuator of claim 1 , wherein the one or more temperature sensors comprises an outdoor air temperature sensor.
- Claim: 11. A method for operating an actuator in an HVAC system, the method comprising: transmitting, by a processing circuit of the actuator, control signals to operate a motor coupled to a drive device configured to drive an HVAC component between a first position and a second position, wherein the actuator, including the motor, drive device, and processing circuit, is configured to be physically coupled to the HVAC component via the drive device; monitoring, by the processing circuit, temperature data received from one or more temperature sensors; and modifying, by the processing circuit, a control logic function of the actuator for at least one of the motor or the drive device in response to the monitored temperature data, wherein modifying the control logic function comprises modulating the actuator using a different control logic function in response to a determination that the temperature data is at least one of unexpectedly positive or unexpectedly negative.
- Claim: 12. The method of claim 11 , wherein an alarm signal is configured to illuminate at least one notification light emitting diode (LED).
- Claim: 13. The method of claim 11 , wherein an alarm signal is configured to transmit a message to at least one of a building management system (BMS) controller or a building automation system (BAS).
- Claim: 14. The method of claim 11 , wherein at least one of the temperature sensors is a supply air temperature sensor.
- Claim: 15. The method of claim 11 , wherein at least one of the temperature sensors is a zone air temperature sensor.
- Claim: 16. The method of claim 11 , wherein at least one of the temperature sensors is an outdoor air temperature sensor.
- Claim: 17. An actuator in an HVAC system configured to modify an environmental condition of a building, the actuator comprising: a motor; a drive device driven by the motor and coupled to an HVAC component for driving the HVAC component between multiple positions; and a processing circuit coupled to the motor and configured to: transmit control signals to operate the motor to drive the HVAC component between a first position and a second position; monitor temperature data received from one or more temperature sensors; and modify a control logic function of the actuator for at least one of the motor or the drive device in response to the monitored temperature data, wherein modifying the control logic function comprises modulating the actuator using a different control logic function in response to a determination that temperature data is at least one of unexpectedly positive or unexpectedly negative.
- Claim: 18. The actuator of claim 17 , wherein an alarm signal is configured to notify a user of a need of actuator cleaning.
- Claim: 19. The actuator of claim 17 , wherein an alarm signal is configured to notify a user of a need of actuator replacement.
- Claim: 20. The actuator of claim 17 , wherein the HVAC component is at least one of a damper, a valve, a fan, or a pump.
- Patent References Cited: 20050155365 July 2005 Shah et al. ; 20150204568 July 2015 Thomas et al. ; 20150233597 August 2015 Dempster ; 20150333669 November 2015 Alexander ; 20160116177 April 2016 Sikora et al.
- Other References: Yu, Y. et al., “A Review of Fault Detection and Diagnosis Methodologies on Air-Handling Units”, Energy and Buildings, 2014, 82, pp. 550-562. cited by applicant
- Primary Examiner: Pan, Yuhui R
- Attorney, Agent or Firm: Foley & Lardner LLP
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