Energy usage estimation for climate control system
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-049/00
G05D-023/00
출원번호
US-0029932
(2005-01-04)
등록번호
US-7392661
(2008-07-01)
발명자
/ 주소
Alles,Harold Gene
출원인 / 주소
Home Comfort Zones, Inc.
대리인 / 주소
Blakely Sokoloff Taylor & Zafman
인용정보
피인용 횟수 :
108인용 특허 :
24
초록▼
An HVAC system controller which estimates the energy cost or savings incurred due to a user-instigated change in a climate control schedule. The HVAC system controller is adapted to operate a multi-zone climate control system in a building, and is especially adapted to operate a retrofit zone climat
An HVAC system controller which estimates the energy cost or savings incurred due to a user-instigated change in a climate control schedule. The HVAC system controller is adapted to operate a multi-zone climate control system in a building, and is especially adapted to operate a retrofit zone climate control system in a residence. The HVAC controller displays the estimated cost or savings to the homeowner, enabling him to make an informed decision about whether to keep the change in the climate control schedule.
대표청구항▼
What is claimed is: 1. A method whereby an HVAC controller estimates a change in energy usage by an HVAC system controlled by the HVAC controller, the method comprising: maintaining a baseline energy usage for a current HVAC system setting including a condition-to temperature; changing the HVAC sys
What is claimed is: 1. A method whereby an HVAC controller estimates a change in energy usage by an HVAC system controlled by the HVAC controller, the method comprising: maintaining a baseline energy usage for a current HVAC system setting including a condition-to temperature; changing the HVAC system setting in response to input from a user of the HVAC controller; maintaining a table indicating one of an estimate of degree-hours which a local climate will be above a temperature in a temperature range and an estimate of degree-hours which the local climate will be below a temperature in a temperature range; estimating a new energy usage for the changed HVAC system setting, including, looking up the condition-to temperature in the table of estimated degree-hours to determine a number of degree-hours of conditioning which the HVAC system will operate to maintain the condition-to temperature, calculating a cost of operating the HVAC system for the determined number of degree-hours, and determining a difference between the calculated cost and a previously stored cost; and displaying to the user an indication of a difference between the estimated energy usage and the baseline energy usage. 2. The method of claim 1 further comprising: using the estimated energy usage as the maintained baseline energy usage for use in subsequent estimations. 3. The method of claim 1 further comprising: maintaining a schedule of HVAC system settings; and wherein the changing of the HVAC system setting comprises changing the maintained schedule. 4. The method of claim 1 wherein the table of estimated degree-hours comprises at least one of: an annual high temperature degree-hours above for cooling table; an annual low temperature degree-hours above for cooling table; an annual high temperature degree-hours below for heating table; and an annual low temperature degree-hours below for heating table. 5. The method of claim 4 further comprising: maintaining a cooling season daily local climate pattern table; maintaining a heating season daily local climate pattern table; and using the pattern tables, interpolating hours of the day which are not directly represented in the tables of degree-hours. 6. An HVAC controller for operating at least one of a furnace, an air conditioner, and a heat pump of a building located in a local climate, the HVAC controller comprising: means for maintaining a schedule; means whereby a user can make a change to the schedule; means for operating the at least one of the furnace, air conditioner, and heat pump, in response to the schedule; means for maintaining a model of the local climate, wherein the model of the local climate includes a table, indexable by temperature over a temperature range, storing data indicating one of an estimated annual total of degree-seconds that the local climate will be above each temperature in the range and an estimated annual total of degree-seconds that the local climate will be below each temperature in the range; means, responsive to the change being made to the schedule, for estimating a change in cost associated with the change to the schedule, the estimating based on the model of the local climate; and means for displaying the estimated change in cost to the user. 7. The HVAC controller of claim 6 wherein the change to the schedule comprises: an alteration to an individual setting in the schedule. 8. The HVAC controller of claim 7 wherein the alteration comprises one of: a change to a temperature setting and a change to a time setting. 9. The HVAC controller of claim 6 wherein the change to the schedule comprises one of: a switch between a normal mode and a setback mode of thermostat operation; a comparison of the schedule to a fixed previous setting. 10. The HVAC controller of claim 6 wherein the schedule comprises one of: a single daily schedule; a schedule having different settings for at least two days during a week. 11. The HVAC controller of claim 6 wherein the means for estimating further comprises: means for applying a first climate model for estimating cooling costs and a second climate model for estimating heating costs. 12. The HVAC controller of claim 6 further comprising: means for selecting the model of the local climate from a plurality of predefined climate models. 13. The HVAC controller of claim 12 wherein: each of the plurality of predefined climate models includes, a first table indicating, for each of a plurality of months, probabilities that an average daily high temperature during that month will exceed each of a plurality of temperatures in a first range; a second table indicating, for each of a plurality of months, probabilities that an average daily low temperature during that month will exceed each of a plurality of temperatures in a second range; and a third table indicating, for each of a plurality of months, an average daily high temperature and an average daily low temperature. 14. The HVAC controller of claim 6 further comprising: means for improving over time an accuracy of the means for estimating, in response to data gathered from operation of the HVAC controller. 15. A method whereby an HVAC controller estimates energy usage of a building's HVAC system under its control, the method comprising: maintaining a schedule of target temperature ranges; operating the HVAC system to keep the building's temperature within a current one of the target temperature ranges; making a change to the schedule in response to user input; maintaining a local climate model, including maintaining a table indexable by temperature, the table indicating one of an estimate of degree-hours that the local climate is likely to be above the indexing temperature and an estimate of degree-hours that the local climate is likely to be below the indexing temperature; maintaining a thermal model of the building; estimating a change in cost caused by the change to the schedule utilizing the local climate model and the thermal model of the building; and displaying an indication of the estimated change in cost to the user. 16. The method of claim 15 further comprising: maintaining a thermal model of the building; and wherein estimating the energy cost/savings includes utilizing the thermal model. 17. The method of claim 15 wherein estimating the change in cost further includes: accounting for local climatic differences between heating season and cooling season. 18. A method of estimating an change in cost resulting from a change in a original schedule in an HVAC controller, the HVAC controller operating an HVAC system in a building having a plurality of rooms, the method comprising: maintaining a first table of data identifying, for each temperature in a high temperature range, a number of degree-hours that daily high temperatures are likely to be above that temperature; maintaining a second table of data identifying, for each temperature in the high temperature range, a number of degree-hours that daily low temperatures are likely to be above that temperature; maintaining a third table of data identifying, for each temperature in a low temperature range, a number of degree-hours that daily high temperatures are likely to be above that temperature; maintaining a fourth table of data identifying, for each temperature in the low temperature range, a number of degree-hours that daily low temperatures are likely to be above that temperature; using the first and second tables in estimating cooling costs; using the third and fourth tables in estimating heating costs; for each day in the schedule, for each hour of that day in the schedule, for each of the rooms, accumulating energy usage by that room at that hour on that day; comparing the accumulated energy usage to an energy usage that would have resulted from the original schedule to identify the change in cost; and displaying an indication of the change in cost for a user of the HVAC controller. 19. The method of claim 18 further comprising: maintaining a fifth table of data identifying a cooling season daily outside temperature pattern; maintaining a sixth table of data identifying a heating season daily outside temperature pattern; further using the fifth table in estimating cooling costs; and further using the sixth table in estimating heating costs.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (24)
Choi Kwang-soo,KRX, Air conditioner having power cost calculating function.
Jardinier Pierre (Gournay S/Marne FRX), Control device for a system regulating the ventilation flow of a controlled-atmosphere room, and functioning cycles ther.
Matsubayashi,Shigeaki; Nagamitsu,Sachio, Energy management system, energy management method, and unit for providing information on energy-saving recommended equipment.
Packa Daniel E. ; Mason Jeffrey A. ; Hondroulis James E. ; Johnson Keith R. ; Hurley Thomas L., System and method for energy measurement and verification with constant baseline reference.
Curry, Jimmie; Jennings, Jacob; Grohman, Wojciech, Alarm and diagnostics system and method for a distributed architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Filbeck, Amanda, Alarm and diagnostics system and method for a distributed architecture heating, ventilation and air conditioning network.
Hadzidedic, Darko; Wallaert, Timothy E.; Powell, Joe, Alarm and diagnostics system and method for a distributed architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Hadzidedic, Darko; Filbeck, Amanda; Wallaert, Timothy E., Alarm and diagnostics system and method for a distributed-architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Hadzidedic, Darko; Filbeck, Amanda; Wallaert, Timothy E.; Thorson, Timothy H.; Pavlak, Thomas Gerard; Jennings, Jacob, Alarm and diagnostics system and method for a distributed-architecture heating, ventilation and air conditioning network.
Kazuno, Hiroki; Nakao, Toshiaki; Sogo, Tomoya; Murakami, Yoshifumi; Shimotsuma, Toru; Maeda, Ryuichi, Apparatus control device, apparatus control system and method for controlling apparatus for controlling an operation of an intended apparatus in accordance with a control schedule.
Grohman, Wojciech; Filbeck, Amanda, Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Hadzidedic, Darko, Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Hadzidedic, Darko; Sullivan, Daniel, Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network.
Wallaert, Timothy E.; Grohman, Wojciech, Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network.
Grohman, Wojciech; Filbeck, Amanda, Device abstraction system and method for a distributed architecture heating, ventilation and air conditioning system.
Hadzidedic, Darko; Grohman, Wojciech, Device abstraction system and method for a distributed architecture heating, ventilation and air conditioning system.
Grohman, Wojciech; Hadzidedic, Darko, Device abstraction system and method for a distributed-architecture heating, ventilation and air conditioning system.
Grohman, Wojciech; Jennings, Jacob; Filbeck, Amanda, Device abstraction system and method for a distributed-architecture heating, ventilation and air conditioning system.
Wallaert, Timothy; Thorson, Timothy H.; Pavlak, Thomas G., Flush wall mount thermostat and in-set mounting plate for a heating, ventilation and air conditioning system.
Grohman, Wojciech; Hadzidedic, Darko; Thorson, Timothy H.; Mirza, Muhammad Ali; Kailani, Ammar; Wallaert, Timothy E., General control techniques in a heating, ventilation and air conditioning network.
McLean, Donald John; Quincey, Richard John, Method and apparatus for navigating modeling of a building using nonparametric user input building design data.
Grohman, Wojciech; Hadzidedic, Darko; Nanjundeshaiah, Kamala Kodihally; Courtney, Michael, Method of controlling equipment in a heating, ventilation and air conditioning network.
Grohman, Wojciech; Filbeck, Amanda; Wallaert, Timothy E., System and method for zoning a distributed architecture heating, ventilation and air conditioning network.
Filbeck, Amanda; Wallaert, Timothy E.; Thorson, Timothy H., System and method for zoning a distributed-architecture heating, ventilation and air conditioning network.
Devineni, Suresh Kumar; Wallaert, Timothy; Mirza, Muhammad Ali; Pavlak, Thomas Gerald; Thorson, Timothy H., System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Filbeck, Amanda; Spencer, Christopher W.; Stanbouly, Souhel H.; Thorson, Timothy H., System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Jennings, Jacob; Pavlak, Thomas Gerald; Filbeck, Amanda; Spencer, Christopher W., System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Mirza, Muhammad Ali; Jennings, Jacob; Filbeck, Amanda, System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Mirza, Muhammad Ali; Thorson, Timothy H., System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Pavlak, Thomas Gerard; Jennings, Jacob, System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Pavlak, Thomas Gerard; Wallaert, Timothy; Thorson, Timothy H., System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Wallaert, Timothy E.; Pavlak, Thomas G.; Thorson, Timothy H.; Mirza, Muhammad Ali; Devineni, Suresh Kumar, System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Wallaert, Timothy; Thorson, Timothy H.; Jennings, Jacob, System and method of use for a user interface dashboard of a heating, ventilation and air conditioning network.
Fadell, Anthony Michael; Sloo, David; Rogers, Matthew; Sharan, Rangoli; Matas, Michael; Matsuoka, Yoky, Temperature controller with model-based time to target calculation and display.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.