Controller set point adjustment based on outdoor temperature

• US 9,964,322 B2
• Filed: 04/03/2015
• Issued: 05/08/2018
• Est. Priority Date: 04/01/2015
• Status: Active Grant

• Current Assignee: Copeland Comfort Control LP (Emerson Electric Company)
• Original Assignee: Emerson Electric Company
• Inventors: Arensmeier, Jeffrey N.
• Primary Examiner(s): JARRETT, RYAN A
• Application Number:
  US14/678,169
• Publication Number:
  US 20160290672A1
• Time in Patent Office: 1,131 Days
• Field of Search: None
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/58 using Internet communication
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/63 Electronic processing
• CPC Class Codes: F24F 2110/12 of the outside air

Abstract

Disclosed are exemplary embodiments of apparatus and methods for adjusting controller set points based on outdoor temperature. In an exemplary embodiment, a climate control system controller for providing climate control in a structure includes a processor and memory configured to obtain adjusted heating and cooling set point values determined by combining adjustment amounts with heating and cooling set points set for the climate control system. The adjustment amounts are determined in accordance with deviations of sensed outdoor ambient temperature (OAT) values from an intermediate OAT value predefined in a range of OAT values. The controller, in response to sensed outdoor temperatures in the range of OAT values, controls heating and cooling in the structure in accordance with the adjusted heating and cooling set point values.

Claims

1. A thermostat for providing climate control in a premises, the thermostat comprising:

a processor and memory configured to;

obtain adjusted heating and cooling set point values determined by combining adjustment amounts with heating and cooling set points set for a climate control system local to the premises and controlled by the thermostat, the adjustment amounts determined in accordance with (a) an adjustment function input by and/or selected by a user of the premises, where the adjustment function does not necessarily take energy consumption into account, and (b) deviations of sensed outdoor ambient temperature (OAT) values from an intermediate OAT value predefined in a range of OAT values;

whereby the thermostat is configured to, in response to sensed outdoor temperatures in the range of OAT values, control heating and cooling in the premises in accordance with the adjusted heating and cooling set point values.

2. The thermostat of claim 1, wherein the adjustment function is input by the user via graphical input predefining the adjustment amounts.

3. The thermostat of claim 1, wherein the adjustment function includes one or more of the following:

a linear function, a power function, an exponential function, and an inverted function.

4. The thermostat of claim 1, further configured to receive the sensed outdoor temperatures from one or more of the following:

an outdoor temperature sensor in communication with the thermostat, a sensor remote from the climate control system, and a computer remote from the climate control system.

5. The thermostat of claim 1, further configured to make available a plurality of adjustment functions for selection therefrom by one or more of the following:

the user, a utility, and a utility provider.

6. An apparatus for providing climate control in a premises, the apparatus comprising:

a thermostat configured to control heating and cooling in the premises; and

a processor and memory configured to;

receive a sensed outdoor ambient temperature (OAT) value;

determine an adjustment amount based on the sensed OAT value and in accordance with an adjustment function input by and/or selected by a user of the premises and defining adjustment amounts for adjusting heating and cooling set points based on deviations of sensed OAT from an intermediate temperature value in a range of OAT values, the adjustment function not necessarily taking energy consumption into account; and

combine the determined adjustment amount with the value of a heating or cooling set point set for the premises, to obtain an adjusted set point value for use by the thermostat;

the thermostat further configured to control the heating or cooling in accordance with the adjusted set point value.

7. The apparatus of claim 6, wherein the intermediate temperature value is between a plurality of OAT values associated with heating and a plurality of OAT values associated with cooling.

8. The apparatus of claim 6, wherein the processor and memory are comprised by one or more of the following:

a controller, the thermostat, a computer remote from the premises, and a mobile user device.

9. The apparatus of claim 6, wherein the adjustment function includes one or more of the following:

a linear function, a power function, an exponential function, and an inverted function.

10. The apparatus of claim 6, wherein the adjustment function is one of a plurality of adjustment functions for selection therefrom by one or more of the following:

the user of the premises, a utility, and a utility provider.

11. The apparatus of claim 6, configured to receive the sensed outdoor ambient temperature (OAT) value from one or more of the following:

an outdoor temperature sensor in communication with the thermostat, a sensor remote from the thermostat, and a computer remote from the thermostat.

12. A method performed by an apparatus for providing climate control in a premises, the method comprising:

adjusting a heating or cooling set point value for control of temperature inside a premises, the adjusting performed in accordance with an adjustment function input by and/or selected by a user of the premises and defining adjustment amounts by which to adjust heating and cooling set point values in accordance with deviation of sensed outdoor ambient temperature (OAT) from an intermediate temperature value between a plurality of OAT values associated with heating and a plurality of OAT values associated with cooling, the adjustment function not necessarily taking energy consumption into account; and

in response to sensed outdoor ambient temperature (OAT), a thermostat of the apparatus controlling heating or cooling inside the premises using the adjusted heating or cooling set point.

13. The method of claim 12, further comprising sensing the OAT, the sensing performed by one or more of the following:

an outdoor temperature sensor in communication with the thermostat, a sensor remote from the thermostat, and a computer remote from the premises.

14. The method of claim 12, further comprising making the adjustment function available as one of a plurality of adjustment functions available for selection therefrom by one or more of the following:

the user, a utility, and a utility provider.

15. The method of claim 12, further comprising receiving, from the user, input for configuring the adjustment function, the receiving performed via a user interface.

16. The method of claim 12, wherein the adjusting is performed at least in part by one or more computers remote from the premises.

17. The method of claim 12, further comprising:

determining, at the premises, that an adjusted heating or cooling set point is not available for use in performing the controlling; and

in response to the determining, the thermostat controlling the heating or cooling using a set point available locally at the premises.

18. The method of claim 17, wherein the determining is performed by the thermostat.