Patents Assigned to Thermo King Corporation
  • Patent number: 11326820
    Abstract: Embodiments of systems and methods for a TRS to automatically sense a voltage level and configuration of an input AC power provided by an AC power source and automatically adapt to the input AC power being used are provided. When the voltage level of an input AC power supplied to a TRS changes, the TRS can automatically detect the change of the voltage level, and adjust a winding configuration of a compressor motor of the TRS and a voltage level of the TRS based on the detected voltage level of the input AC power.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 10, 2022
    Assignee: Thermo King Corporation
    Inventor: Vaitheeswaran Kandasamy
  • Patent number: 11300125
    Abstract: Embodiments to help detect operation conditions of a compressor of a TRU in real time by a genset are disclosed. The operation conditions of the compressor can be determined by monitoring a parameter pattern of the genset, such as value changes of a horsepower, a torque, an exhaust temperature, fuel consumption and/or a RPM of a prime mover of the genset, or a current drawn from a generator of the genset, over a period of time. In one embodiment, when a scroll compressor is used in the TRU, the scroll compressor may start a periodical load/unload duty cycle when the TRU reaches its setpoint. The periodical load/unload duty cycle of the scroll compressor can be detected based on a corresponding fluctuation pattern in genset parameters. When this periodically fluctuating pattern of ECU parameters and/or current drawn is detected, the prime mover can be switched to a low operation speed.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 12, 2022
    Assignee: Thermo King Corporation
    Inventors: Randall Scott Burnham, David Jon Renken, Erich Albert Lucht, Cullen Evan Hall
  • Patent number: 11273687
    Abstract: A climate control circuit for a transport climate control system is provided. The circuit includes a compressor, a plurality of evaporators, a suction flow control device, and a controller. The suction flow control device is downstream of the plurality of evaporators and directs the working fluid from each of the evaporators to one of a main suction port and an auxiliary port of the compressor. The controller determines whether each of the evaporators is operating in a fresh temperature range or in a frozen temperature range. For each of the evaporators operating in the fresh temperature range, the controller instructs the suction flow control device to direct the working fluid from the corresponding evaporator to the auxiliary suction port. For each of the plurality of evaporators operating in the frozen temperature range, the controller instructs the suction flow control device to direct the working fluid to the main suction port.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 15, 2022
    Assignee: Thermo King Corporation
    Inventors: Joseph R. Kaiser, Lars I. Sjoholm, Panayu Robert Srichai, David J. Dykes
  • Patent number: 11273684
    Abstract: A method for autonomous climate control optimization of a transport vehicle having a climate control system is provided. The method includes a controller receiving geolocation specific data providing location information of the transport vehicle. The method also includes the controller receiving climate control data providing operational status information of the climate control system. The method also includes the controller receiving passenger/load data providing passenger/load information travelling in the transport vehicle. Also, the method includes the controller generating adjustment instructions of the climate control system based on the geolocation specific data, the climate control data, and the passenger/load data. Further, the method includes adjusting operation of the climate control system based on the adjustment instructions.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: March 15, 2022
    Assignee: Thermo King Corporation
    Inventors: Katherine Holmstrom, Scott Wenger
  • Patent number: 11260723
    Abstract: A method for power and load management of a transport climate control system using a vehicle electrical system is provided. The method includes a controller determining a power draw of the transport climate control load network, determining an amount of power available from the vehicle electrical system, and determining whether the power draw of the transport climate control load network exceeds the amount of power available from the vehicle electrical system. Also, the method includes shedding one or more loads of the transport climate control load network to reduce the power draw of the transport climate control load network until the power draw of the transport climate control load network matches the power available from the vehicle electrical system. Further, the method includes supplying power from the vehicle electrical system to the transport climate control load network.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 1, 2022
    Assignee: Thermo King Corporation
    Inventors: Ryan Wayne Schumacher, Frantisek Zebra, Joan Vila Soler, Jordi Garcia Farran, Vikram Madineni
  • Patent number: 11214118
    Abstract: A method of power demand management is provided. The method includes an electrically powered climate control unit (CCU) detecting one or more additional electrically powered CCUs in a vicinity of the electrically powered CCU and the CCU establishing a communication link with the one or more additional electrically powered CCUs. The method includes generating and transmitting a pending power request to demand power from the power source to the CCU. The CCU monitors for one or more additional pending power requests from the one or more additional CCUs and monitors its position within a power request queue for obtaining power from the power source amongst the CCU and the one or more additional CCUs. Also, the method includes the electrically powered CCU demanding power from the power source when its position within the power request queue is high enough to demand power from the power source.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: January 4, 2022
    Assignee: Thermo King Corporation
    Inventors: Matthew Srnec, Philip Lewis Lavrich, Eckardt Augenstein, Matthias Gorski, Ryan Wayne Schumacher
  • Patent number: 11203262
    Abstract: A power distribution unit (PDU) for use with an electrically powered accessory is disclosed. The PDU includes at least one power input configured to receive electrical power from an electrical supply equipment and/or a second power source. The PDU also includes an accessory power interface configured to provide power to the electrically powered accessory. The PDU further includes a vehicle power interface configured to provide power to a vehicle electrical system of the vehicle. Also the PDU includes at least one switch configured to selectively connect the at least one power input to a power bus, and selectively connect the power bus to at least one of the accessory power interface and the vehicle power interface. The PDU also includes a controller configured to control the at least one switch to provide power to the electrically powered accessory and/or the vehicle electrical storage device of the vehicle electrical system.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 21, 2021
    Assignee: Thermo King Corporation
    Inventors: Ryan Wayne Schumacher, Nicholas Allan Cregan, Mark D. Leasure, Michael James Vanous
  • Patent number: 11192451
    Abstract: A method for managing energy to a transport climate control system from a vehicle electrical system is provided. The vehicle electrical system includes a vehicle power network and an auxiliary power network connected to a transport climate control load network via a DC regulated bus. The method includes monitoring a vehicle voltage of the vehicle power network and determining whether the vehicle power network requires holdover assistance based on the vehicle voltage. Also, the method includes the bus sending vehicle power energy generated by the vehicle power network to the transport climate control load network without assistance of the auxiliary power network when the controller determines that the vehicle power network has sufficient power capacity available, and the bus sending the vehicle power energy and auxiliary power energy stored by the auxiliary power network to the transport climate control load network when the controller determines that the vehicle power network requires holdover assistance.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 7, 2021
    Assignee: Thermo King Corporation
    Inventors: Ryan Wayne Schumacher, Jordi Garcia Farran, Joan Vila, Terence O'Shea, Frantisek Zebra, Vikram Madineni
  • Patent number: 11173444
    Abstract: There is disclosed a scrubber apparatus 300 for a refrigerated transport container 100 having a cargo space 105, comprising: a regenerating adsorber 302; a manifold 306, 308 in fluid communication with a first side of the adsorber, an interior gas port 318, 338 for fluid communication with interior gas in the cargo space and an exterior gas port 320, 340 for fluid communication with exterior gas outside of the cargo space; and a common actuator configured to actuate both an adsorption control damper 314, 334 for controlling selective fluid communication between the adsorber and interior gas, and a regeneration control damper 316, 336 for controlling selective fluid communication between the adsorber and exterior gas. There is also disclosed a scrubber apparatus 300 which is configured to heat interior gas provided to an adsorber for removal of a controlled gas. Methods of operating a scrubber apparatus are also disclosed.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: November 16, 2021
    Assignee: Thermo King Corporation
    Inventors: Miguel Angel Ferrer Blas, Petra Stavova, Praveen Manohar G
  • Patent number: 11135894
    Abstract: A climate control system for use in a transport vehicle is disclosed. The climate control system includes a variable speed electric load, a controller configured to determine a load of the variable speed electric load, and a battery pack voltage configurator circuit. The battery pack voltage configurator circuit includes a first battery bank providing a first voltage and a first current, a second battery bank providing a second voltage and a second current, and a plurality of switches. The controller is configured to control the plurality of switches based on the determined load of the variable speed electric load. The battery pack voltage configurator circuit is configured to provide an output voltage and an output current to drive the variable speed electric load. The output voltage and the output current vary in magnitude based on the control of the plurality of switches.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 5, 2021
    Assignee: Thermo King Corporation
    Inventors: Marcelo Andrade Dias, Ryan Wayne Schumacher
  • Patent number: 11128247
    Abstract: An inverter-converter system includes a DC source, a DC to DC boost converter, a DC link capacitor, an inverter circuit, a variable speed electric machine, and a controller. The DC to DC boost converter receives an input DC voltage from the DC source. The inverter circuit converts the variable boosted voltage to an AC voltage to drive the variable speed electric machine. The controller senses a plurality of parameters from the variable speed electric machine, and controls the DC to DC boost converter to boost up the input DC voltage to a variable output voltage based on the plurality of parameters and/or the voltage (or load) needed by the variable speed electric machine. The design of the inverter-converter system can achieve an electrical efficiency and cost savings for the overall system.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: September 21, 2021
    Assignee: Thermo King Corporation
    Inventors: Ryan Wayne Schumacher, Marcelo Andrade Dias
  • Patent number: 11104230
    Abstract: A method for power management of a transport refrigeration system electrically connected to a utility power source. The method including determining an operating mode for the transport refrigeration system based on one or more of an amount of utility power available from the utility power source to the transport refrigeration system, a current cost of the utility power, and a noise or emission regulation for operating a prime mover. A transport refrigeration system unit that includes a transport refrigeration unit and a controller configured to receive power from a utility power source or a primary energy source. The controller also configured to determine an operating mode for the transport refrigeration system based on one or more of an amount of utility power available from the utility power source to the transport refrigeration system, a current cost of the utility power, and a noise or emission regulation for operating the prime mover.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 31, 2021
    Assignee: Thermo King Corporation
    Inventors: Philip Lewis Lavrich, Robert Leslie Isaacs
  • Patent number: 11097600
    Abstract: A method for adaptive power engine control of a transport refrigeration unit (TRU) is provided. The method includes determining a current compressor power of a compressor of the TRU. The method also includes determining an adaptive compressor power error of the compressor. Also, the method includes calculating and setting a target compressor power of the compressor based on the current compressor power and the adaptive compressor power error. Further, the method includes determining a suction pressure control point of the compressor based on the target compressor power and a compressor curve map. Moreover, the method includes operating the compressor with the suction pressure control point of the compressor.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 24, 2021
    Assignee: Thermo King Corporation
    Inventors: David J. Dykes, Carl A. Withey, Mitchell Anthony Tramp
  • Patent number: 11085686
    Abstract: Methods and systems for detecting and correcting improper operation of a compressor in a refrigeration system and/or an HVAC system include a component level detection and prevention and a system level detection and prevention. The system level detection and prevention can be a backup or a confirmation of the component level detection and prevention. The component level detection and prevention can detect and prevent improper compressor operation within a predetermined time so that the compressor's operation period in an improper direction can be minimized, thereby minimizing wear and damage to the compressor.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 10, 2021
    Assignee: Thermo King Corporation
    Inventors: Ryan Wayne Schumacher, Russell L. Sanders, Michael James Vanous, Marcelo Andrade Dias
  • Patent number: 11072321
    Abstract: Systems and methods for providing load shedding in a vehicle are provided. Particularly, the vehicle may be an electric vehicle and the loads that are shed may be HVAC or refrigeration loads. The load shedding methods and systems may include a predictive model of energy consumption, determining a predicted energy consumption and comparing it to a stored energy at the vehicle. If the predicted energy consumption exceeds the stored energy, load shedding operations may be performed at a transport climate control system, such as adjusting a set point, adjusting an operating mode of the transport climate control system, increasing a dead band of a compressor of the transport climate control system, utilizing free cooling such as ambient air to provide climate control in the vehicle, or increasing cooling provided by the transport climate control system to an energy storage of the vehicle.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 27, 2021
    Assignee: Thermo King Corporation
    Inventors: Scott Wenger, Katherine Holmstrom
  • Patent number: D935423
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 9, 2021
    Assignee: Thermo King Corporation
    Inventors: Shawn Alan Schemmel, Russell L. Sanders, Adam Howard Raybin, David Patrick O'Gorman, Sean Keaveney, Joshua Hubert, Diarmaid Thomas Bucke, Shiva Kumar Dakshina Murthy, Jonathan W. Blixt, John M. Gladitsch
  • Patent number: D935943
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 16, 2021
    Assignee: Thermo King Corporation
    Inventor: Rafael Ibanez Giner
  • Patent number: D935944
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 16, 2021
    Assignee: Thermo King Corporation
    Inventors: Rafael Ibanez Giner, Shiva Kumar Dakshina Murthy, Pradeesh Esakkiappan
  • Patent number: D942392
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 1, 2022
    Assignee: Thermo King Corporation
    Inventors: Shawn Alan Schemmel, Diarmaid Thomas Bucke, Niall Lynch
  • Patent number: D944199
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: February 22, 2022
    Assignee: Thermo King Corporation
    Inventors: Shawn Alan Schemmel, Diarmaid Thomas Bucke, Niall Lynch