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公开(公告)号：US11162701B2
公开(公告)日：2021-11-02
申请号：US16800383
申请日：2020-02-25
发明人： Saleh Nabi , Hongtao Qiao , Piyush Grover
IPC分类号： F24F11/46 , F24F11/00 , F24F11/56 , F24F11/64 , F24F11/65 , G05B19/042 , F24F110/10 , F24F110/20 , F24F120/12 , F24F140/50 , F24F140/60
摘要： A control system for controlling an operation of a heating ventilation and air conditioning (HVAC) system is provided. The control system comprises an input interface configured to accept data indicative of a target distribution of thermal state in an environment, and a memory configured to store an airflow dynamics model (ADM) and an HVAC model. The control system further comprises a processor configured to inverse the ADM to estimate values of boundary conditions for inlet locations defining target thermal state at the inlet locations that result in the target distribution of thermal state in the environment; determine, using the HVAC model, target control parameters of actuators of the HVAC system resulting in the target thermal state at the inlet locations; and submit control commands to the HVAC system to operate the actuators of the HVAC system according to the control parameters.
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公开(公告)号：US20190293836A1
公开(公告)日：2019-09-26
申请号：US15926864
申请日：2018-03-20
发明人： Saleh Nabi , Piyush Grover , Mithu Debnath
摘要： A wind flow sensing system determines a first approximation of the velocity field at each of the altitudes by simulating computational fluid dynamics (CFD) of the wind flow with operating parameters reducing a cost function of a weighted combination of errors, determines a horizontal derivative of vertical velocity at each of the altitudes from the first approximation of the velocity fields, and determines a second approximation of the velocity fields using geometric relationships between a velocity field for each of the altitudes, projections of the measurements of radial velocities on the three-dimensional axes, and the horizontal derivative of vertical velocity for the corresponding velocity field. In the cost function of the CFD, each error corresponds to one of the altitudes and includes a difference between measured velocities at the line-of-site points at the corresponding altitude and simulated velocities at the line-of-site points simulated by the CFD for the corresponding altitude. At least some errors in the weighted combination have different weights.
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3.发明申请公开(公告)号：US20160258645A1
公开(公告)日：2016-09-08
申请号：US14714428
申请日：2015-05-18
CPC分类号： G05B17/02 , F24F11/30 , F24F11/46 , F24F11/62 , F24F11/65 , F24F2110/00 , G05B13/04 , G05D23/1917
摘要： A method determines values of the airflow measured in the conditioned environment during the operation of the air-conditioning system and selects, from a set of regimes predetermined for the conditioned environment, a regime of the airflow matching the measured values of the airflow. The method selects, from a set of models of the airflow predetermined for the conditioned environment, a model of airflow corresponding to the selected regime and models the airflow using the selected model. The operation of the air-conditioning system is controlled using the modeled airflow.
摘要翻译： 一种方法确定在空调系统操作期间在调节环境中测量的气流的值，并且从针对调节环境预定的一组方案中选择与气流的测量值匹配的气流的状态。 该方法从针对调节环境预定的气流的一组模型中选择与所选择的状态相对应的气流模型，并使用所选择的模型对气流进行建模。 使用模拟气流控制空调系统的运行。
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公开(公告)号：US20210375127A1
公开(公告)日：2021-12-02
申请号：US16889224
申请日：2020-06-01
发明人： Uros Kalabic , Piyush Grover , Schuchin Aeron
摘要： Embodiments disclose a system for traffic control. The system comprises a receiver configured to receive traffic information indicative of a state of a traffic; a processor configured to determine one or more control commands to control at least a subset of vehicles forming the state of the traffic by minimizing a multiscale normalization of a difference between a flow of one or more vehicles of the subset of vehicles forming the traffic and a uniform flow of the one or more vehicles; and a transmitter configured to transmit the one or more control commands to the subset of vehicles.
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公开(公告)号：US10922966B2
公开(公告)日：2021-02-16
申请号：US16176195
申请日：2018-10-31
发明人： Uros Kalabic , Nils Gustav Nilsson , Piyush Grover
摘要： A traffic control system for controlling a traffic of cooperative and uncooperative vehicles determines delays on each segment of the roads of the network based on the current state of the flow of the traffic and determines flows of the cooperative and uncooperative vehicles that satisfy a Nash equilibrium for the cooperative vehicles having a common objective and the uncooperative vehicles having individual objectives. The system determines, for the cooperative vehicles, costs of segments of the roads that correspond to the Nash equilibrium and determines routes for the cooperative vehicles based on the current locations and target locations of the cooperative vehicles, and the costs of the segments of the roads in the network determined for the cooperative vehicles. The routes are transmitted to corresponding cooperative vehicles.
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公开(公告)号：US20200055617A1
公开(公告)日：2020-02-20
申请号：US16299300
申请日：2019-03-12
发明人： Piyush Grover , Uros Kalabic , Avishai Weiss
摘要： A system for optimizing a low-thrust trajectory of a spacecraft trajectory for orbital transfer includes an interface to receive data, a memory to store scheduled geostationary transfer orbit (GTO) data and scheduled geostationary Earth orbit (GEO) data and computer-executable programs, and a processor. The processor is configured to provide a two-dimensional (2D) averaged trajectory consisting of a predetermined revolutions by executing the optimal control program using the GTO data and GEO data, arrange N equidistant points on the 2D averaged trajectory to form segments on the 2D averaged trajectory, obtain osculating elements corresponding to the segments by solving optimization problems for the segments, estimate initial guesses of the segments under continuous thrusting conditions in tangential directions at the N equidistant points, solve a minimum energy optimization problem to obtain a minimum energy 2D osculating trajectory by using as initial guess the concatenation of segments, compute a minimum energy three-dimensional (3D) osculating trajectory by linearly decreasing an inclination of the minimum energy 2D osculating trajectory to zero, and generating a minimum fuel 3D osculating trajectory by iteratively solving a cost function while changing a parameter from one to zero.
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公开(公告)号：US09976765B2
公开(公告)日：2018-05-22
申请号：US14640052
申请日：2015-03-06
CPC分类号： F24F11/62 , F24F11/30 , F24F11/46 , F24F11/64 , F24F11/65 , F24F11/70 , F24F2110/00 , F24F2140/60 , G05B13/04 , G05B17/02 , G05D23/1917
摘要： A method controls an operation of an air-conditioning system generating airflow in a conditioned environment. The method updates a model of airflow dynamics connecting values of flow and temperature of air conditioned during the operation of the air-conditioning system. The model is updated interactively iteratively to reduce an error between values of the airflow determined according to the model and values of the airflow measured during the operation. Next, the method models the airflow using the updated model and controls the operation of the air-conditioning system using the model.
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公开(公告)号：US20180120775A1
公开(公告)日：2018-05-03
申请号：US15340015
申请日：2016-11-01
IPC分类号： G05B13/02
CPC分类号： G05B13/021 , B25J9/1682 , G05B2219/32015 , G05B2219/39155 , G05B2219/39163 , G05D1/0027
摘要： Motion of multiple agents with identical non-linear dynamics is controlled to change density of the agents from the initial to the final density. A first control problem is formulated for optimizing a control cost of changing density of the agents from the initial density to the final density subject to dynamics of the agents in a density space. The first control problem, which is a non-linear non-convex problem over a multi-agent control and a density of the agents, is transformed into a second control problem over the density of the agents and a product of the multi-agent control and the density of the agents. The second control problem is a non-linear convex problem that is solved to produce the control input for each section of the state space. A motion of each agent is controlled according to a control input corresponding to its section of the state space.
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公开(公告)号：US11787569B2
公开(公告)日：2023-10-17
申请号：US16299300
申请日：2019-03-12
发明人： Piyush Grover , Uros Kalabic , Avishai Weiss
摘要： A system for optimizing a low-thrust trajectory of a spacecraft trajectory for orbital transfer includes an interface to receive data, a memory to store scheduled geostationary transfer orbit (GTO) data and scheduled geostationary Earth orbit (GEO) data and computer-executable programs, and a processor. The processor is configured to provide a two-dimensional (2D) averaged trajectory consisting of a predetermined revolutions by executing the optimal control program using the GTO data and GEO data, arrange N equidistant points on the 2D averaged trajectory to form segments on the 2D averaged trajectory, obtain osculating elements corresponding to the segments by solving optimization problems for the segments, estimate initial guesses of the segments under continuous thrusting conditions in tangential directions at the N equidistant points, solve a minimum energy optimization problem to obtain a minimum energy 2D osculating trajectory by using as initial guess the concatenation of segments, compute a minimum energy three-dimensional (3D) osculating trajectory by linearly decreasing an inclination of the minimum energy 2D osculating trajectory to zero, and generating a minimum fuel 3D osculating trajectory by iteratively solving a cost function while changing a parameter from one to zero.
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10.发明申请公开(公告)号：US20210262682A1
公开(公告)日：2021-08-26
申请号：US16800383
申请日：2020-02-25
发明人： Saleh Nabi , Hongtao Qiao , Piyush Grover
摘要： A control system for controlling an operation of a heating ventilation and air conditioning (HVAC) system is provided. The control system comprises an input interface configured to accept data indicative of a target distribution of thermal state in an environment, and a memory configured to store an airflow dynamics model (ADM) and an HVAC model. The control system further comprises a processor configured to inverse the ADM to estimate values of boundary conditions for inlet locations defining target thermal state at the inlet locations that result in the target distribution of thermal state in the environment; determine, using the HVAC model, target control parameters of actuators of the HVAC system resulting in the target thermal state at the inlet locations; and submit control commands to the HVAC system to operate the actuators of the HVAC system according to the control parameters.
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