Automatic Control Patents (Class 62/132)
  • Patent number: 10914485
    Abstract: A method of controlling an air conditioner system, the method including transmitting, by a first unit among a plurality of units belonging to a particular group, a wireless tuning command to a second unit; measuring, by the second unit, reception sensitivity and a transmission and reception success rate by wirelessly communicating with units belonging to the particular group while reducing a signal strength from a default signal strength; when the reception sensitivity and the transmission and reception success rate satisfy the predetermined standard, determining, by the second unit, that the signal strength corresponding to a level right before a level satisfying a predetermined standard is the signal strength to be used; and transmitting, by the second unit, information related to the determined signal strength to the first unit. Accordingly, an optimal signal strength at which mutual interference is prevented may be set.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: February 9, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Seontae Yoon
  • Patent number: 10488102
    Abstract: A household cooling appliance has a housing with a receiving space for food, a door for closing the receiving space, wherein the door is movably arranged at the housing, an ice maker with an ice tray, wherein the ice maker with the ice tray is arranged in the door, a first cooling device, which is arranged at the door and by which the ice tray is cooled, wherein the first cooling device comprises a waste heat unit by which the waste heat resulting from the cooling of the ice tray can be dissipated, and a second cooling device, which is arranged at the housing and by which the receiving space is cooled. The waste heat unit of the first cooling device is thermally coupled with the second cooling device such that the waste heat of the waste heat unit can be transferred to the second cooling device.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: November 26, 2019
    Assignee: BSH Hausgeraete GmbH
    Inventors: Kudret Baysal, Carsten Weiss, Bernd Mettel, Axel Kluger, Johannes Schlosser, Markus Spielmannleitner, Michael Laudahn
  • Patent number: 10420425
    Abstract: A refrigerated display case (20) having at least one unit composed of a plurality of wall assemblies, namely a bottom assembly (22.3), a rear wall assembly, and a top assembly (22.1), which delimit a cooling space at the bottom, the rear, and the top, and having a cooling unit (1) whose components include at least one evaporator (11), one condenser (13, 13?), and one electric control unit (15). An environmentally friendly refrigerated display case (20) is achieved in that the cooling unit (1) includes at least two closed refrigerant circuits (10, 10?), which convey propane as a refrigerant and are each provided with a compressor (12, 12?), and in order to variably control the cooling output, at least one compressor (12, 12?) is embodied with a speed regulation and at least one compressor (12, 12?) is embodied for operation at a constant speed.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: September 24, 2019
    Assignee: AHT COOLING SYSTEMS GMBH
    Inventor: Reinhold Resch
  • Patent number: 10401065
    Abstract: Provided is an expansion valve, including: a case having a valve chamber formed therein; and a valve element arranged in the valve chamber. The case includes: a side wall portion to which a first pipe is connected; and an end wall portion to which a second pipe is connected. The end wall portion has a fluid communication hole to be opened and closed by the valve element. The fluid communication hole is formed so that the following expression is satisfied: L<?/2, where L represents an axial length of the fluid communication hole, and ? represents a resonance wavelength.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 3, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yusuke Shimazu
  • Patent number: 10323869
    Abstract: A combined suction header and accumulator for a refrigeration system is described that may protect a compressor from refrigerant liquid entering the compressor while reducing superheat used to evaporate the refrigerant. The combined suction header and accumulator unit for a refrigeration system includes a suction header coupled to an exit side of an evaporator. The suction header includes a main body and receives a flow of refrigerant from the evaporator. The flow of refrigerant includes a liquid portion and a vapor portion. The combined suction header and accumulator unit includes a liquid accumulator disposed within the main body of the suction header. The liquid accumulator blocks the liquid portion of the flow of refrigerant from exiting the main body.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: June 18, 2019
    Assignee: Johnson Control Technology Company
    Inventors: Nicholas P. Mislak, Douglas A. Kester
  • Patent number: 10101054
    Abstract: The disclosure discloses a variable refrigerant flow (VRF) air conditioning system with dual control over temperature and humidity and a control method thereof, in which the VRF air conditioning system includes multiple indoor machines, an outdoor machine and a controller; the outdoor machine is provided with a first connector and a second connector; each indoor machine includes an indoor throttle valve, a first heat exchanger, a second heat exchanger, a first solenoid valve, a second solenoid valve, a third solenoid valve, a temperature detector and a humidity detector; the controller controls the VRF air conditioning system by controlling the indoor throttle valve, the first solenoid valve, the second solenoid valve and the third solenoid valve in each indoor machine.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: October 16, 2018
    Assignees: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., MIDEA GROUP CO., LTD.
    Inventor: Zhao Huang
  • Patent number: 9951985
    Abstract: A system includes a compressor driven by a motor. A condenser receives working fluid from the compressor. An evaporator is in fluid communication with the condenser and the compressor. A first sensor produces a first signal indicative of one of current and power drawn by the motor. A second sensor produces a second signal indicative of a discharge line temperature. A processing circuitry processes the first signal and the second signal to determine a freeze time. The processing circuitry processes the freeze time, the current signal, and the discharge line temperature signal to determine a working fluid charge level.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 24, 2018
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Vijay Bahel, Kurt James Knapke
  • Patent number: 9759467
    Abstract: A compressor controller includes: a control amount calculation unit configured to calculate at least two control amounts including a first control amount for controlling a first control object that relates to a gas amount for cooling a cryogenic apparatus, and a second control amount for controlling a second control object that relates to the refrigerant gas amount and that is different from the first control object, the second control amount being common with the first control amount; and a selection unit configured to select a control object to be controlled from at least two control objects including the first control object and the second control object on the basis of a comparison between the at least two common control amounts.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 12, 2017
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventor: Toshiyuki Kimura
  • Patent number: 9728826
    Abstract: An exemplary method includes circulating a fluid through a heat exchanger and a battery pack when the battery pack requires cooling, and circulating the fluid through an exhaust gas heat recovery device and the battery pack when the battery pack requires heating. An exemplary system includes a battery pack, a heat exchanger, an exhaust gas heat recovery device, and a fluid valve moveable to a cooling position that permits a fluid to circulate between the heat exchanger and the battery pack and a heating position that permits the fluid to circulate between the exhaust gas heat recovery device and the battery pack.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: August 8, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher Alan Lear, Sam Revach, Scott James Thompson, Robert Hasse
  • Patent number: 9073405
    Abstract: A telematics service system and a terminal predict a driving start time of a vehicle based on a driving pattern of a user, compare status information of the vehicle and a set temperature before the predicted driving start time of the vehicle, and generate a temperature control signal so that an interior temperature of the vehicle reaches the set temperature. The terminal is fixed inside the vehicle. A vehicle electronic control device attached to the vehicle collects the status information of the vehicle, provides the collected information to the terminal device, and controls a temperature adjustment device of the vehicle in accordance with the temperature control signal of the terminal device to adjust the interior temperature of the vehicle to reach the set temperature.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: July 7, 2015
    Assignee: SK PLANET CO., LTD.
    Inventors: Yoon Jeong Choi, Dae Lim Son, Eun Bok Lee, Jun Yong Jung
  • Patent number: 9046094
    Abstract: A method of determining a time delay for turning off an evaporator fan in a refrigerator after a compressor of the refrigerator is turned off includes operating the evaporator fan in the refrigerator for a period of time, operating the compressor of the refrigerator to cool the refrigerator to a predetermined temperature after turning off the evaporator fan, determining a power consumption value for operating the compressor to cool the refrigerator, repeating the previous steps to obtain a plurality of times and a plurality of power consumption values, selecting the time coinciding with a lowest power consumption value, and adapting the refrigerator to use the time as the time delay for turning off the evaporator fan in the refrigerator after the compressor of the refrigerator is turned off.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 2, 2015
    Assignee: Whirlpool Corporation
    Inventors: Ali R. Buendia Garcia, Alberto Regio Gomes, Tushar Kulkarni, Andrew D. Litch, Peter J. Richmond
  • Patent number: 9024765
    Abstract: A method, system or computer usable program product for providing alerts of inefficiency of an environmental conditioning system including, responsive to a cycle initiation by the environmental conditioning system, measuring a difference between an intake temperature and an outlet temperature after a predetermined period of time, and responsive to the difference being below a minimum level, generating an alert.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventor: Mark J. Hoesl
  • Publication number: 20150107274
    Abstract: A machine (10) for the production and dispensing of food products such as ice cream and the like comprises a tub (11) cooled by a refrigerating circuit (12) and a motor-driven helical mixer (14) which rotates inside the tub. The tub is provided at the front with a tap (15) for dispensing the product through a dispensing outlet (16) and comprises a control system (21), a sensor (23) for rotation of the mixer and an interface panel (22) which are connected to the control system (21) so that, when rotation of the mixer (13) is detected by means of the sensor (23), the control system (21) shows on the interface panel (22) an animated image (28) representing said rotation.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Inventor: Marco Corrado Ugolini
  • Publication number: 20150101357
    Abstract: A machine (10) for the production and dispensing of food products such as ice cream and the like comprises a tub (11) containing a cylindrical evaporator (12) of a refrigerating circuit (13) and motor-driven helical mixer (14) which rotates coaxially inside the evaporator. The tub is also provided at the front with a tap (15) for dispensing the product through a dispensing outlet (16) which is arranged above a front zone of the machine which receives a container (18) for holding a measured amount of product. Behind the receiving zone the machine has, in the form of a single module (20), a control panel provided with means (21) for displaying information about the machine, pushbuttons (22) for operating the machine and a sensor (23) which detects the presence of an object which is placed in the vicinity of the receiving zone and activates the machine so as to prepare it for dispensing via the tap when the presence of an object is detected.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 16, 2015
    Inventor: Marco Corrado Ugolini
  • Publication number: 20150096310
    Abstract: An ice maker assembly and a method for operating an ice maker are provided. The method includes measuring a temperature of the ice maker and determining a first derivative of the temperature of the ice maker with respect to time. An operating state of the ice maker is established based at least in part on the temperature of the ice maker and the first derivative of the temperature of the ice maker with respect to time. Knowledge of the operating state of the ice maker can assist with preventing damage to a motor of the ice maker and with detecting super-cooled liquid water in a mold body of the ice maker.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Applicant: General Electric Company
    Inventors: Keith Wesley Wait, Alan Joseph Mitchell
  • Patent number: 8989894
    Abstract: An ice machine includes an insulated compartment to store ice, a dispenser having access to the insulated compartment to dispense ice from the insulated compartment, a card reader, and a controller in communication with the card reader and the dispenser. The controller stores permission settings including a public setting and a private setting. The controller is to receive a card number from the card reader. The controller is to determine whether to initiate ice dispensing using the dispenser based on the card number, the public setting and the private setting.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 24, 2015
    Inventor: David W. Tenberg, Jr.
  • Publication number: 20150068224
    Abstract: A control system for an automatic icemaker including an icemaker module and a control module. The icemaker module includes a DC motor to drive rotation of a twist-type ice cube tray. The control module incorporates an integrated circuit with a programmable digital microprocessor for controlling the functions of the icemaker module. The control module accesses AC power and converts the AC power to DC power for powering a DC motor, an integrated circuit, and a microprocessor.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventor: Ryan M. Subera
  • Patent number: 8966930
    Abstract: A container data center system includes a container, a plurality of servers, at least a regulation device, a first refrigeration device and a second refrigeration device. The container defines a first receiving room and a second receiving room isolated from the first receiving room. The servers are received in the first receiving room. The at least a regulation device is received in second receiving room. The at least regulation device is electrically connected to the servers for regulating the servers. The first refrigeration device is installed outside the container for cooling the first receiving room. The second refrigeration device is installed outside the container for cooling the second receiving room.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: March 3, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Tai-Wei Lin
  • Patent number: 8935935
    Abstract: Methods for monitoring a sensor of a refrigerator appliance are provided. The methods include activating an auto-fill feature of the refrigerator appliance and receiving a signal from a sensor of the refrigerator appliance. The method also includes displaying a message on a display of the refrigerator appliance if the sensor does not detect the container within the dispenser recess. The message can provide a user with feedback regarding the auto-fill feature and assist the user with properly operating the auto-fill feature.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 20, 2015
    Assignee: General Electric Company
    Inventors: Joseph Thomas Waugh, Tyler James Doering, Jonathan Charles Crosby, Ryan Michael Hartlage
  • Publication number: 20150007593
    Abstract: An apparatus includes a scrubber bed, a cooling unit operatively connected to the scrubber bed, and a frame configured for a user to carry the apparatus. The cooling unit includes a compressor, a condensing coil operatively connecting the compressor to an expansion valve, and an evaporating coil operatively connecting the expansion valve to the compressor, and a first fluid circulating through the compressor, the condensing coil, the expansion valve, and the evaporating coil. A method of cooling a gas in a rebreather apparatus includes scrubbing an exhalation gas to produce a recycled gas having a lower concentration of carbon dioxide than the exhalation gas, compressing, condensing, expanding, and evaporating a refrigerant in a closed-loop system, transferring heat energy from the recycled gas to the refrigerant, and metering a cooled gas to the user.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Mark Alan Johnson, Gene Melton
  • Publication number: 20150007962
    Abstract: A beverage cooling device capable of improving cooling efficiency is disclosed. The beverage cooling device includes: a beverage storing tank having an inlet through which a new beverage is injected and an outlet through which a cooled beverage is discharged; a cooling unit for cooling a beverage supplied to the beverage storing tank by forming a frozen layer on an inner side wall surface of the beverage storing tank; a beverage flow guide unit provided in the beverage storing tank and increasing cooling efficiency by increasing an area which is in contact with the frozen layer while the beverage injected from the inlet is moved to the outlet; and a passage securing unit preventing a passage through which the beverage is movable from being blocked by the frozen layer formed to be expanded to the beverage flow guide unit.
    Type: Application
    Filed: December 11, 2012
    Publication date: January 8, 2015
    Inventor: Hee-Jong Yoon
  • Patent number: 8925339
    Abstract: Automated control of a cooling system cooling at least one electronic component is provided. The control includes monitoring over a period of time variation of an operational variable of the cooling system or of the at least one electronic component, and based, at least in part, on variation of the operational variable over the period of time, automatically determining whether to adjust control of the cooling system to limit variation of the operational variable. In one implementation, depending on the variation of the operational variable, and whether control of the cooling system has been previously adjusted, the method may further include automatically determining a probability of fail or an expected residual life of the cooling system, and responsive to the predicted probability of fail exceeding a first acceptable threshold or the expected residual life being below a second acceptable threshold, automatically scheduling for a cooling system repair or replacement.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: Daniel J. Kearney, Rejean P. Levesque, K. Paul Muller, Andrew H. Vogel, Emmanuel Yashchin
  • Publication number: 20140360213
    Abstract: A refrigerator is disclosed. The refrigerator is able to store food at a low temperature and to effectively remove bacteria of the food stored in a storage room, to maintain the storage room clean.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 11, 2014
    Inventors: Mina SON, Jeongyon KIM, Hyeonjin KIM, Byunghyun KIM, Eunjeong KIM
  • Publication number: 20140298836
    Abstract: The present invention relates to a cooling device (1) having a body (2), a storage tank (3) wherein liquid is stored and at least one light source (4) that is disposed in the storage tank (3), providing the liquid to be sterilized, and wherein the liquid in the storage tank (3) is sterilized by using the light emitted from the light source (4).
    Type: Application
    Filed: October 23, 2012
    Publication date: October 9, 2014
    Applicant: Arcelik Anonim Sirketi
    Inventors: Mehmet Ali Oral, Aylin Met
  • Patent number: 8820104
    Abstract: This invention is characterized by an air conditioning system that jets actively a refrigerant into an evaporator in an active jetting manner so as to enhance the diffusibility and uniformity thereof.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: September 2, 2014
    Inventor: Tai-Her Yang
  • Patent number: 8825184
    Abstract: A method for operating a vapor compression system modifies each control signal of a set of control signals with a corresponding modification signal of a set of modification signals, wherein each modification signal includes a perturbation signal, and the pertubation signals haver different frequencies and determines a metric signal representing perturbations in the system caused by the set of modification signals. Next, the method adjusts a value of each modification signal based on a function of a phase between the modification signal and a corresponding frequency component of the metric signal.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 2, 2014
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventor: Dan J. Burns
  • Patent number: 8794017
    Abstract: A system for managing distribution of a cooling medium includes a sensor configured to detect a condition, a first agent configured to receive the detected condition and to determine whether a characteristic of the cooling medium controlled via a first actuator is to be manipulated based upon the detected condition. The system also includes a second agent configured to receive at least one of the detected condition and the flow manipulation determination of the first actuator and to determine whether a characteristic of the cooling medium controlled by a second actuator is to be manipulated based upon the at least one of the detected condition and the characteristic manipulation determination of the first actuator.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: August 5, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Cullen E. Bash, Chandrakant Patel, Ratnesh Kumar Sharma, Amip J. Shah
  • Patent number: 8781634
    Abstract: In an air conditioning system and a communication method thereof a wireless network may be established between indoor units and a controller or between outdoor units so as to allow communications therebetween, thereby facilitating device addition or device deletion. Also, one or more outdoor units and a plurality of indoor units may be controlled without a dedicated communication line or with using a less mount of the dedicated communication line, and the outdoor units or indoor units may perform communications using one or more communication technologies, such as wireless communication and pipe communication technologies and wireless communication and dedicated line communication technologies, while performing communications with the controller using the wireless communication technology.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: July 15, 2014
    Assignee: LG Electronics Inc.
    Inventors: Juntae Kim, Sangchul Youn
  • Patent number: 8769968
    Abstract: A refrigerant system and a method for controlling the same are provided. A refrigerant system includes: an outdoor heat exchanger disposed in an operating loop of the refrigerant system and configured to perform a heat exchange between outdoor air and a refrigerant; a compressor disposed in the operating loop and configured to compress the refrigerant; an indoor heat exchanger disposed in the operating loop and configured to perform a heat exchange between indoor air and the refrigerant; an expander disposed in the operating loop and configured to expand the refrigerant; a refrigerant storage connected to the operating loop and configured to receive and store the refrigerant from and discharge the refrigerant to the operating loop; and a refrigerant storage controller configured to control a total amount of refrigerant in the operating loop based on an indoor air conditioning load and an amount of the stored refrigerant.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 8, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hojong Jeong, Baikyoung Chung, Jaehwa Jung, Yongcheol Sa, Byungsoon Kim
  • Publication number: 20140165602
    Abstract: An ice maker, including sensors to measure usage parameters and transmit the same to a controller. The controller is operably connected to a plurality of ice forming systems, and directs the systems to operate in a high energy mode or a low energy mode, based on the usage parameter. The usage parameters may include an ice level, a change in the ice level over time, the amount of time that a dispenser is actuated, the time of day, or historical usage patterns. The ice forming systems may include one or more of a thermoelectric device coupled to a bottom surface of an ice forming plate, a forced air system to circulate cold air, a forced air system to circulate warm air, and a temperature control system to maintain a temperature gradient between a first chamber above the ice forming plate and a second chamber below the ice forming plate.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: WHIRLPOOL CORPORATION
    Inventor: PATRICK J. BOARMAN
  • Patent number: 8734640
    Abstract: A water purifying apparatus, comprises: a filtering unit for filtering water supplied from a wellhead into purified water; a water tank unit including a cold water tank for storing the purified water in a cold water state, and a hot water tank for storing the purified water in a hot water state; a discharging unit for selectively discharging out the purified water stored in the water tank unit; a state detecting unit for detecting an operation state of at least one of the filtering unit, the water tank unit, and the discharging unit; a controller for comparing the information detected by the state detecting unit with a preset reference, thereby judging an abnormal state of the water purifying apparatus; and a state displaying unit for displaying the abnormal state information to outside. When the water purifying apparatus has a breakdown, mal-operated components of the water purifying apparatus may be checked by being displayed on the state displaying unit, without being checked by an A/S specialist.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sung-Yong Shin, Deul-Re Min
  • Publication number: 20140130531
    Abstract: A system includes a control module and a monitor module. The control module selectively operates a component of the system in an ON state. The system receives power from an electrical grid. The monitor module selectively detects a fault event of the electrical grid in response to (i) an amount of current drawn by the component or (ii) a voltage of power received by the component. In response to detecting the fault event, the control module switches the component from the ON state to a second state, determines a first delay period according to a random process, identifies an apparent conclusion of the fault event, and in response to the apparent conclusion of the fault, waits for the first delay period before switching the component back to the ON state. The component consumes less power in the second state than in the ON state.
    Type: Application
    Filed: December 9, 2013
    Publication date: May 15, 2014
    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.
    Inventors: Nagaraj JAYANTH, George RAMAYYA
  • Patent number: 8724320
    Abstract: A fan system includes a pulse signal generation portion and a plurality of fans. Each of the plurality of fans preferably includes a motor portion; an impeller arranged to be rotated by the motor portion; a drive circuit arranged to drive the motor portion; a rotation detection portion arranged to detect rotation of the motor portion; and a rotation rate control circuit arranged to, based on a reference pulse signal supplied from the pulse signal generation portion and an actual rotation pulse signal supplied from the rotation detection portion, exercise feedback control on a rotation rate of the motor portion in accordance with a period of the reference pulse signal.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: May 13, 2014
    Assignee: Nidec Corporation
    Inventors: George Harlan, Masayuki Kato, Hideyuki Takemoto, Masamune Hiraki
  • Patent number: 8694131
    Abstract: A system and a method for controlling an operation of a vapor compression system are disclosed, such that a performance of the system measured in accordance with a metric of the performance is optimized. A control signal is modified with a modification signal including a perturbation signal having a first frequency, wherein the control signal controls at least one component of the vapor compression system. A metric signal representing a perturbation in the performance of the system caused by the modification signal is determined, wherein the metric signal has a second frequency substantially equal to the first frequency. The control signal is adjusted based on a function of a phase between the perturbation signal and the metric signal, such that the performance is optimized.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 8, 2014
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Dan J. Burns, Scott A. Bortoff, Christopher Laughman
  • Publication number: 20140060096
    Abstract: Ultraviolet radiation is directed within an area. The target wavelength ranges and/or target intensity ranges of the ultraviolet radiation sources can correspond to at least one of a plurality of selectable operating configurations including a virus destruction operating configuration and a bacteria disinfection operating configuration. Each configuration can include a unique combination of the target wavelength range and target intensity range.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: Sensor Electronic Technology, Inc.
    Inventors: Michael Shur, Maxim Shatalov, Timothy James Bettles, Yuri Bilenko, Saulius Smetona, Alexander Dobrinsky, Remigijus Gaska
  • Publication number: 20140020418
    Abstract: A data center cooling system may include heat transfer equipment to cool a liquid coolant without vapor compression refrigeration, and the liquid coolant is used on a liquid cooled information technology equipment rack housed in the data center. The system may also include a controller-apparatus to regulate the liquid coolant flow to the liquid cooled information technology equipment rack through a range of liquid coolant flow values based upon information technology equipment temperature thresholds.
    Type: Application
    Filed: August 17, 2012
    Publication date: January 23, 2014
    Applicant: International Business Machines Corporation
    Inventors: Timothy J. Chainer, Hien P. Dang, Pritish R. Parida, Mark D. Schultz, Arun Sharma
  • Patent number: 8626381
    Abstract: A method of increasing a range of a vehicle by decreasing trapped HVAC energy at an end of a trip. The method may include the steps of: determining a destination list based on locations where the vehicle may be parked in the future, the destination list accessible by a control module in the vehicle; determining HVAC reduction regions around each of the locations on the destination list, the HVAC reduction regions accessible by the control module; operating a HVAC system while the vehicle is moving; tracking the location of the vehicle relative to the locations on the destination list; and the control module automatically reducing the energy usage of the HVAC system when the vehicle enters one of the HVAC reduction regions.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: January 7, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward D. Tate, Jr., Scott E. Jackson, Roger A. Clark
  • Patent number: 8605393
    Abstract: A compressor monitoring system includes current and voltage monitors, current and voltage averaging modules, a control module, and a switch. The current monitor measures a current drawn by a motor of a compressor. The current averaging module generates first and second average current values based on the current measured by the current monitor. The voltage monitor measures a utility power voltage. The voltage averaging module generates first and second average voltage values based on the voltage measured by the voltage monitor. The control module selectively generates a fault signal when a first ratio is greater than a first predetermined threshold and a second ratio is less than a second predetermined threshold. The first ratio is based on the first and second average current values. The second ratio is based on the first and second average voltage values. The switch deactivates the motor when the fault signal is generated.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: December 10, 2013
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Nagaraj B. Jayanth, George Ramayya
  • Patent number: 8567204
    Abstract: Systems and methods for regulating the amount of outdoor air that is introduced into a building are shown and described. These systems and methods utilize extremum seeking control logic to vary the flow of outdoor air into the building in response to cooling load determinations.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: October 29, 2013
    Assignee: Johnson Controls Technology Company
    Inventor: John E. Seem
  • Publication number: 20130255282
    Abstract: Provided, is a fully integrated system to monitor and control carcass weight to minimize weight loss in carcasses during the chilling cycle. This will be accomplished by incorporating a load cell and a radio frequency identification device on the trolley operating on the elevated track system extending through the packing plant, including the carcass chilling rooms. This method and apparatus will provide the needed location and weight data to control a water spray system to maintain a constant carcass weight during the entire chilling cycle.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Inventor: Rodney W. Heston
  • Publication number: 20130233004
    Abstract: A cooling system particularly suitable for use on board an aircraft includes a cooling circuit allowing circulation of a two-phase refrigerant therethrough. An evaporator in the cooling circuit has a refrigerant inlet and a refrigerant outlet. A condenser in the cooling circuit has a refrigerant inlet and a refrigerant outlet. A detection device is configured to output a signal indicative of the state of aggregation of the refrigerant in a connecting portion of the cooling circuit which connects the refrigerant outlet of the evaporator to the refrigerant inlet of the condenser. A control device is configured to control at least one of the temperature and the pressure of the refrigerant in the connecting portion of the cooling circuit in dependence on the signal output by the detection device such that the refrigerant in the connecting portion of the cooling circuit is maintained in its gaseous state of aggregation.
    Type: Application
    Filed: February 21, 2013
    Publication date: September 12, 2013
    Applicant: AIRBUS OPERATIONS GMBH
    Inventor: Markus PIESKER
  • Publication number: 20130219925
    Abstract: Blast chiller apparatus (1) comprising a chilling chamber (3) structured for housing food to be cooled/frozen, a chilling circuit (6) comprising at least a first heat exchanger (8) designed to rapidly cool/freeze the chilling chamber (3); a defrost system (12) designed to defrost said at least first heat exchanger (8); at least an UV source (14) designed to irradiate ultraviolet radiations the inner space of said chilling chamber (3); and a control system configured to control the defrost system (12) to heat the first heat exchanger (8) so as to have the temperature of the chilling chamber (3) within a prefixed optimum temperature range of operating of said UV source (14).
    Type: Application
    Filed: February 20, 2013
    Publication date: August 29, 2013
    Applicant: ELECTROLUX PROFESSIONAL S.P.A.
    Inventor: Electrolux Professional S.p.A.
  • Publication number: 20130199225
    Abstract: An air conditioner for an electric vehicle is provided that can enhance a heating capacity or a coefficient of heating performance in a cold district and that can realize a heating, cooling or dehumidification operation via a single air conditioning cycle.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 8, 2013
    Inventors: Deonghyuk LEE, Chisuk KANG, Seongho HONG
  • Patent number: 8504216
    Abstract: A system for reducing the peak power consumption by a refrigeration system is provided. The system comprises a first electromechanical cold control calibrated to a first temperature setpoint, a second electromechanical cold control calibrated to a second temperature setpoint, said first and second cold controls each having a setpoint selector member operatively linked such that adjustment of one results in a corresponding adjustment of the other, a DSM module responsive to demand state signals from an associated utility indicative of at least a peak demand and an off peak demand state, and a DSM switching device responsive to the DSM module and operative to selectively render one or the other of the cold controls effectively operative to control the cooling system depending upon the demand state signal.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: August 6, 2013
    Assignee: General Electric Company
    Inventor: John K. Besore
  • Patent number: 8495885
    Abstract: A system for locking control systems of an appliance includes a lock control that is configured to selectively place at least one of the user-controllable systems in a locked condition while allowing another of the user-controlled systems to remain in an unlocked condition. The system generally includes an appliance operation control, at least one interface and the lock control. The appliance operation control is configured to control user-adjustable controllable systems of the appliance in response to input received by the appliance operation control. The at least one interface is on the appliance and is in communication with the appliance operation control. The at least one interface is configured to receive input via the interface to control at least two of the user-controllable systems of the appliance. When a user-controllable system is in the locked condition, the locked control system is inoperative or unable to be adjusted.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: July 30, 2013
    Assignee: General Electric Company
    Inventors: Anthony Cooper, Josh Kopecky, Jerrod Kapler, Ranjan Damodar
  • Publication number: 20130174593
    Abstract: In an air conditioning system, a compressor, a condenser, and an indoor unit that functions as an evaporator during cooling, are provided in a circulation pathway of a refrigerant, in respective order during cooling. An additional heat exchanger is provided in the circulation pathway at a point that during cooling is between the condenser and the indoor unit. The additional heat exchanger is contained within a tank of a cooling device. The cooling device performs cooling of the additional heat exchanger by supplying water into the tank. Quantity of water supplied into the tank is controlled through open/close control of a control valve.
    Type: Application
    Filed: October 17, 2011
    Publication date: July 11, 2013
    Applicant: EN-TECH CO., LTD.
    Inventors: Syuji Hattori, Tatsuhiro Tokuyama
  • Publication number: 20130125571
    Abstract: A countertop rapid cooler is disclosed for rapidly cooling food, drink, and other items using at least convection cooling. the cooler includes: a thermally insulated enclosure with a door and sized to fit on a countertop; a fan; and a convective heat exchanger for cooling air blown by the fan toward an item within the enclosure. The convective heat exchanger is capable of receiving coolant from a neighboring refrigeration unit (such as a refrigerator), and returning the coolant to the neighboring unit after use. In some embodiments, expanded coolant can be delivered from the neighboring unit's expansion valve. In other embodiments, unexpanded coolant can be delivered from the neighboring unit, to be expanded by a separate expansion valve located within the countertop rapid cooler. By not including its own compressor or condenser, the countertop rapid cooler is lighter, and uses less space, than currently available rapid cooling devices.
    Type: Application
    Filed: November 19, 2011
    Publication date: May 23, 2013
    Inventor: Jason Goode
  • Publication number: 20130091883
    Abstract: A controller, a water source heat pump and a computer useable medium are disclosed herein. In one embodiment the controller includes: (1) an interface configured to receive operating data and monitoring data from the water source heat pump and transmit control signals to components of thereof and (2) a processor configured to respond to the operating data or the monitoring data by operating at least one motor-operated valve of the water source heat pump via a control signal.
    Type: Application
    Filed: September 26, 2012
    Publication date: April 18, 2013
    Applicant: LENNOX INDUSTRIES INC.
    Inventor: LENNOX INDUSTRIES, INC.
  • Publication number: 20130083580
    Abstract: The switching power supply device is provided with a high-withstand voltage first transistor, a first electrode of which being connected to a first node; a low-withstand voltage second transistor, a first electrode of which being connected to a second electrode of the first transistor, and a second electrode of which being connected to a second node; and a drive circuit. Each of the first and second transistors has a parasitic diode connected in the forward direction between the second and first electrodes. The drive circuit, in a case where electrical current is to flow from the first node to the second node, turns on the first and second transistors, and, in a case where electrical current is to flow from the second node to the first node, turns on the first transistor, and turns off the second transistor.
    Type: Application
    Filed: September 11, 2012
    Publication date: April 4, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kenji KOMIYA, Shuji Wakaiki, Akihide Shibata, Hiroshi Iwata
  • Publication number: 20130074534
    Abstract: One aspect, as provided herein, is directed to a multi-stage fluid control system for a fluid source heat pump system. This embodiment comprises compressors configured to operate as separate, heat exchange stages, condensers each being fluidly coupled to at least one of the compressors by refrigerant tubing and having intake ends coupled together by a fluid intake manifold. This embodiment further includes output conduits coupled to each of the condensers and that are couplable to a distal location. Further included is a modulating valve control system interposed the output conduits. The modulating valve control system is configured to stage a flow of fluid through the condensers based on a number of operating compressors.
    Type: Application
    Filed: December 9, 2011
    Publication date: March 28, 2013
    Applicant: Lennox Industries Inc.
    Inventors: Steve Schneider, Eric Perez, Aylan Him, Miguel Montemayor