公开(公告)号：US10545517B2

公开(公告)日：2020-01-28

申请号：US15902290

申请日：2018-02-22

Applicant: Google LLC

Inventor： Yoky Matsuoka ,  Mark Malhotra ,  Allen J. Minich ,  Joseph A. Ruff

IPC: G05D23/19 ,  G05B15/02 ,  G05B17/02 ,  F24F11/58 ,  F24F11/52

Abstract: In controlling the HVAC system, a need to determine an expected indoor temperature profile for a particular schedule of setpoint temperatures may arise. To make such a determination, a thermodynamic model of the structure is used. The thermodynamic model is generated by fitting weighting factors of a set of basis functions to a variety of historical data including time information, temperature information, and HVAC actuation state information. The set of basis functions characterize an indoor temperature trajectory of the structure in response to a change in HVAC actuation state, and include an inertial carryover component that characterizes a carryover of a rate of indoor temperature change that was occurring immediately prior to the change in actuation state.

公开(公告)号：US09910449B2

公开(公告)日：2018-03-06

申请号：US13866602

申请日：2013-04-19

Applicant: Google LLC

Inventor： Yoky Matsuoka ,  Mark Malhotra ,  Allen J. Minich ,  Joseph A. Ruff

IPC: G05D23/19 ,  F24F11/00 ,  G05B17/02 ,  G05B15/02

CPC classification number: G05D23/1917 ,  F24F11/52 ,  F24F11/58 ,  G05B15/02 ,  G05B17/02 ,  G05B2219/2614 ,  G05B2219/2642

Abstract: Thermostats disclosed herein are operable to control an HVAC system. In controlling the HVAC system, a need to determine an expected indoor temperature profile for a particular schedule of setpoint temperatures may arise. To make such a determination, a thermodynamic model of the structure is used. The thermodynamic model may be generated by fitting weighting factors of a set of basis functions to a variety of historical data including time information, temperature information, and HVAC actuation state information. The set of basis functions characterize an indoor temperature trajectory of the structure in response to a change in HVAC actuation state, and include an inertial carryover component that characterizes a carryover of a rate of indoor temperature change that was occurring immediately prior to the change in actuation state.

公开(公告)号：US20180181149A1

公开(公告)日：2018-06-28

申请号：US15902290

申请日：2018-02-22

Applicant: Google LLC

Inventor： Yoky Matsuoka ,  Mark Malhotra ,  Allen J. Minich ,  Joseph A. Ruff

IPC: G05D23/19 ,  G05B17/02 ,  G05B15/02 ,  F24F11/52 ,  F24F11/58

Abstract: Apparatus, systems, methods, and related computer program products for generating and implementing thermodynamic models of a structure. Thermostats disclosed herein are operable to control an HVAC system. In controlling the HVAC system, a need to determine an expected indoor temperature profile for a particular schedule of setpoint temperatures may arise. To make such a determination, a thermodynamic model of the structure may be used. The thermodynamic model may be generated by fitting weighting factors of a set of basis functions to a variety of historical data including time information, temperature information, and HVAC actuation state information. The set of basis functions characterize an indoor temperature trajectory of the structure in response to a change in HVAC actuation state, and include an inertial carryover component that characterizes a carryover of a rate of indoor temperature change that was occurring immediately prior to the change in actuation state.

公开(公告)号：US10416627B2

公开(公告)日：2019-09-17

申请号：US15681045

申请日：2017-08-18

Applicant: Google LLC

Inventor： Yoky Matsuoka ,  Joseph A. Ruff ,  Mark Malhotra

IPC: F24F11/00 ,  H04L12/28 ,  G05B15/02 ,  G05D23/19 ,  F24F11/30 ,  F24F11/62

Abstract: The current application is directed to intelligent controllers that continuously, periodically, or intermittently monitor progress towards one or more control goals under one or more constraints in order to achieve control that satisfies potentially conflicting goals. An intelligent controller may alter aspects of control, dynamically, while the control is being carried out, in order to ensure that goals are obtained and a balance is achieved between potentially conflicting goals. The intelligent controller uses various types of information to determine an initial control strategy as well as to dynamically adjust the control strategy as the control is being carried out.