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11.发明申请公开(公告)号：US20220221178A1
公开(公告)日：2022-07-14
申请号：US17147199
申请日：2021-01-12
发明人： Rohini Brahme , Sridhar Venkatesh
摘要： An adaptive Heating, Ventilation, and Air Conditioning (HVAC) control device configured to identify timestamps over a time period when a space is unoccupied, to identify a set point temperature for each timestamp, and to train a machine learning model using the timestamps and corresponding set point temperatures. The device is further configured to determine a timestamp that corresponds with the current day, to input the timestamp into the machine learning model, and to obtain HVAC control settings from the machine learning model in response to inputting the timestamp into the machine learning model. The HVAC control settings include a return time and a set point temperature. The device is further configured to operate the HVAC system at the set point temperature until the return time.
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公开(公告)号：US20200141603A1
公开(公告)日：2020-05-07
申请号：US16182273
申请日：2018-11-06
发明人： Rohini Brahme , Peter Hrejsa
摘要： A method for operating a heating, ventilation, and air condition (“HVAC”) system includes determining a current temperature of the enclosed space and receiving a first comfort temperature. The method further including determining, based on a selection of a time period, a first consumption value indicating a predicted amount of energy required to maintain the first comfort temperature for the time period, wherein the first consumption value is determined based at least on a first predicted value and a second predicted value, the first predicted value being indicative of an amount of energy required to condition the enclosed space to the first comfort temperature from the current temperature and the second predicted value being indicative of an amount of energy required to, upon conditioning the enclosed space to the first comfort temperature, maintain the first comfort temperature for the time period.
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13.发明公开公开(公告)号：US20240353138A1
公开(公告)日：2024-10-24
申请号：US18760343
申请日：2024-07-01
发明人： Rohini Brahme
IPC分类号： F24F11/65
CPC分类号： F24F11/65
摘要： An HVAC system is configured to regulate a temperature of a space. The HVAC system includes means for compressing a refrigerant used to cool air provided to the space and a controller communicatively coupled to the means for compressing. The controller determines that a demand response time period is starting at a start time. After determining that the demand response time period is starting at the start time, an operation schedule is determined indicating alternating portions of the demand response period during which the means for compressing is to be turned off and turned on. At or after the start time of the demand response time period, the controller begins operating the means for compressing according to the determined operation schedule.
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14.发明公开公开(公告)号：US20230296277A1
公开(公告)日：2023-09-21
申请号：US17655685
申请日：2022-03-21
发明人： Rohini Brahme , Pete Hrejsa
IPC分类号： F24F11/63 , G05B19/042
CPC分类号： F24F11/63 , G05B19/042 , G05B2219/2614
摘要： An HVAC system includes a variable speed compressor. A controller determines that the HVAC system is requested to operate according to a demand response during a demand response time. A curtailment compressor speed is determined that achieves the reduced power consumption requested by the demand response. At a start of the demand response time, the controller begins operating the variable speed compressor at the curtailment speed. During the demand response time, the controller adjusts the speed of the variable speed compressor using dynamic control logic with an offset setpoint temperature used as the control setpoint value when an indoor air temperature of the space is less than the offset setpoint temperature and greater than the baseline setpoint temperature.
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公开(公告)号：US20230003413A1
公开(公告)日：2023-01-05
申请号：US17930271
申请日：2022-09-07
摘要： During an initial period of time, an HVAC controller stores a record of an energy demand of the HVAC system that corresponds to an amount of energy used to operate the HVAC system. For a future time period, an anticipated energy demand of the HVAC system is determined. The controller then recursively determines, for each of a plurality of time points within the future time period, an anticipated indoor humidity value using the anticipated energy demand and the record of the energy demand. The HVAC system is operated based at least in part on the anticipated indoor humidity value.
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公开(公告)号：US20220228765A1
公开(公告)日：2022-07-21
申请号：US17153669
申请日：2021-01-20
摘要： During an initial period of time, an HVAC controller receives an indoor humidity and an outdoor humidity. A record of an energy demand of the HVAC system is stored for each indoor humidity and outdoor humidity. For a future time period, an anticipated energy demand of the HVAC system is determined. The controller then recursively determines, for each of a plurality of time points within the future time period, an anticipated indoor humidity value using the anticipated energy demand and the record of the energy demand. The HVAC system is operated based at least in part on the anticipated indoor humidity value.
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公开(公告)号：US20210310681A1
公开(公告)日：2021-10-07
申请号：US17347684
申请日：2021-06-15
发明人： Rohini Brahme , Mark Olsen
摘要： A method of operating an HVAC system using a controller includes predicting a first predicted temperature of an enclosed space during an unoccupied time with the HVAC system off. The controller determines if the first predicted temperature is less than a set-point temperature. Responsive to a determination that the first predicted temperature is less than the set-point temperature, the controller predicts a second predicted temperature of the enclosed space if the HVAC system is operated for a first runtime. The controller determines if the second predicted temperature is less than the set-point temperature and, responsive to a determination that the second predicted temperature is not less than the set-point temperature, the controller operates the HVAC system for the first runtime.
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公开(公告)号：US10830474B2
公开(公告)日：2020-11-10
申请号：US16182273
申请日：2018-11-06
发明人： Rohini Brahme , Peter Hrejsa
IPC分类号： F24F11/46 , F24F11/64 , F24F11/65 , G05B13/04 , F24F140/60 , F24F110/12 , F24F130/10 , F24F140/50 , F24F110/10
摘要： A method for operating a heating, ventilation, and air condition (“HVAC”) system includes determining a current temperature of the enclosed space and receiving a first comfort temperature. The method further including determining, based on a selection of a time period, a first consumption value indicating a predicted amount of energy required to maintain the first comfort temperature for the time period, wherein the first consumption value is determined based at least on a first predicted value and a second predicted value, the first predicted value being indicative of an amount of energy required to condition the enclosed space to the first comfort temperature from the current temperature and the second predicted value being indicative of an amount of energy required to, upon conditioning the enclosed space to the first comfort temperature, maintain the first comfort temperature for the time period.
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公开(公告)号：US10712037B2
公开(公告)日：2020-07-14
申请号：US15939439
申请日：2018-03-29
发明人： Rohini Brahme , Umesh Gokhale , Derek Phillips
IPC分类号： F24F11/46 , F24F11/88 , F24F11/89 , F24F110/20 , F24F110/10
摘要： According to certain embodiments, operating an HVAC system comprises receiving zone temperature data from a temperature sensor, zone humidity-ratio data from a humidity sensor, a temperature set point from a user, and a relative-humidity set point from a user. A humidity-ratio set point is determined based on the temperature and relative-humidity set points. A first command to the HVAC system to perform a cooling operation is communicated upon determining that the temperature data exceeds a temperature threshold based on the temperature set point. Determining if the humidity data has reached a humidity-ratio threshold based on the humidity-ratio set point after determining that the temperature data has reached the temperature threshold. Operating the HVAC system according to a dehumidification-based cooling procedure upon determining that the humidity data has not reached the humidity-ratio threshold.
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公开(公告)号：US20190338978A1
公开(公告)日：2019-11-07
申请号：US15967848
申请日：2018-05-01
摘要： A method includes receiving a setpoint and a time of interest indicating a time in the future when the setpoint is to be reached and obtaining a first data set comprising a plurality of lag values, the plurality of lag values associated with one or more variables related to the HVAC system. The method further includes selecting a second data set comprising a subset of the lag values from the first data set and determining a predicted condition at the time of interest based at least in part on the lag values in the second data set. The method further includes determining a schedule for operating heating or cooling components of the HVAC system such that the setpoint is reached by the time of interest and communicating one or more signals instructing the HVAC system to operate according to the schedule.
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