Abstract: A transportation refrigeration unit including: at least one component powered by an energy storage device composed of a first energy storage pack and a second energy storage pack, wherein the at least one component draws electrical power from the energy storage device at an operating power; a return air temperature sensor to detect a return air temperature; a controller to adjust the operating power in response to the return air temperature, wherein the controller determines a state of charge of the first energy storage pack and a state of charge of the second energy storage pack, wherein the controller selects at least one of the first energy storage pack and the second energy storage pack to power the at least one component in response to the operating power, the state of charge of the first energy storage pack, and the state of charge of the second energy storage pack.

Abstract: A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) configured to compress a refrigerant, an evaporator heat exchanger (76) operatively coupled to the compressor (58), and an evaporator fan (98) configured to provide return airflow and flow the return airflow over the evaporator heat exchanger (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow and configured measure the temperature of the return airflow, a TRU controller (82) operably connected to the RAT sensor (142) and configured to execute a process to determine an AC power requirement for the TRU (26) based on at least the RAT (142), a generator power converter (164a) configured to provide a second DC power (165b), an energy storage system (150) configured to receive the second DC power (165) and provide a three phase AC power (157) to a power management system (124).

Abstract: A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) configured to compress a refrigerant, an evaporator heat exchanger (76) operatively coupled to the compressor (58), and an evaporator fan (98) configured to provide return airflow (134) and flow the return airflow (137) over the evaporator heat exchanger (76).

Abstract: A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) operatively coupled to an evaporator heat exchanger (76) and an evaporator fan (98) configured to flow a return airflow (134) over the evaporator (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow (134) and configured measure the temperature thereof, a TRU controller (82) connected to the RAT sensor (142) that executes a process to determine an AC power requirement for the TRU (26) based on the RAT sensor (142); a generator power converter (164) configured to receive three phase AC power (163) from a three phase AC generator (162) and transmit a second DC power (165b) to an energy storage system (150); a power management system (124a) configured to receive three phase AC power (157) from at least the energy storage system (150) and generate a TRU DC power (129), and directing the TRU DC power (129) to the TRU system (26).

Abstract: A transport refrigeration unit (TRU) system is provided. The TRU system includes a TRU and an energy storage device (ESD). The TRU includes components (32) configured to control an environment in a compartment interior and a TRU controller (31) configured to control the components (32) in accordance with initial control settings and to monitor energy usage by the components (32) being controlled in accordance with the initial control settings. The ESD (40) includes an ESD controller (42) receptive of data reflective of the monitored energy usage by the components (32) from the TRU controller (31) and configured to determine whether the energy usage is above a threshold. In an event the energy usage is above the threshold, the ESD controller (42) is further configured to identify operational changes for one or more of the components (32) to reduce the energy usage and override the initial control settings of the one or more of the components (32) with new control settings.

Abstract: A refrigeration unit including a refrigeration circuit, a mounting plate, a power electronics device thermally coupled to the mounting plate, and a heat sink thermally coupled to the mounting plate and to a component of the refrigeration circuit. The heat sink is configured to transfer waste heat from the mounting plate to the component of the refrigeration circuit.

Abstract: Techniques for operating a transport refrigeration system with an energy storage device include producing a first output and a second output at an energy storage device (ESD), and converting the first output and the second output to a converted first output and a converted second output. The techniques also include supplying the converted first output and the converted second output to components of the transport refrigeration system, and operating the components of the transport refrigeration system using the converted first output and the converted second output.

Abstract: A transport refrigeration system includes a transport refrigeration unit, an energy storage device, a supply refrigerant tube, a return refrigerant tube and at least one electrical pathway. The transport refrigeration unit is adapted to cool a container. The energy storage device is adapted to provide electrical energy for operating the transport refrigeration unit. The supply refrigerant tube flows a refrigerant from the transport refrigeration unit to the energy storage device, and the return refrigerant tube flows the refrigerant from the energy storage device back to the transport refrigeration unit. The electrical pathway extends between the transport refrigeration unit and the energy storage device, and supplies at least electrical energy to the transport refrigeration unit.

Abstract: A transport refrigeration system (26) includes a transport refrigeration unit (44), an energy storage device (46), a supply refrigerant tube (108), a return refrigerant tube (110) and at least one electrical pathway (98). The transport refrigeration unit is adapted to cool a container. The energy storage device is adapted to provide electrical energy for operating the transport refrigeration unit. The supply refrigerant tube flows a refrigerant from the transport refrigeration unit to the energy storage device, and the return refrigerant tube flows the refrigerant from the energy storage device back to the transport refrigeration unit to cool the battery in the energy storage device (46). The electrical pathway extends between the transport refrigeration unit and the energy storage device, and supplies at least electrical energy to the transport refrigeration unit.

Abstract: A transportation refrigeration unit is provided. The transportation refrigeration unit comprising: a compressor configured to compress a refrigerant; a compressor motor configured to drive the compressor; an evaporator heat exchanger operatively coupled to the compressor; an energy storage device for providing power to the compressor motor; and an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger, wherein the return airflow thermodynamically adjusts a temperature of the energy storage device.

Abstract: A transport refrigeration system is provided. The refrigeration transportation system comprising: a refrigerated cargo space; a refrigeration unit in operative association with the refrigerated cargo space, the refrigeration unit providing conditioned air to the refrigerated cargo space; a battery system configured to power the refrigeration unit; and an auxiliary power unit configured to charge the battery system when the power level of the battery system is equal to or below a first selected power level.

Abstract: A transport refrigeration unit (TRU) system is provided and includes a TRU and an energy storage device (ESD). The TRU includes components which are configured to control an environment and a TRU controller configured to control the components in accordance with component operating settings. The ESD includes an ESD controller receptive of identification data identifying the components, current condition data reflective of current conditions and control data reflective of a temperature profile. The ESD controller is configured to determine the component operating settings in accordance with the identification, current condition and control data and to issue the component operating settings to the TRU controller.

Abstract: A battery case is provided. The battery case includes a first fin and a second fin, wherein the first fin is stacked substantially parallel to the second fin. The first fin is separated from the second fin by an airgap. The battery case includes one or more battery cell packs, each of the one or more battery cell packs are disposed through an orifice on each the first fin and the second fin.

Abstract: A transportation refrigeration unit including: at least one component powered by an energy storage device composed of a first energy storage pack and a second energy storage pack, wherein the at least one component draws electrical power from the energy storage device at an operating power; a return air temperature sensor to detect a return air temperature; a controller to adjust the operating power in response to the return air temperature, wherein the controller determines a state of charge of the first energy storage pack and a state of charge of the second energy storage pack, wherein the controller selects at least one of the first energy storage pack and the second energy storage pack to power the at least one component in response to the operating power, the state of charge of the first energy storage pack, and the state of charge of the second energy storage pack.

Abstract: A transportation refrigeration unit (26) comprising: a compressor (58) configured to compress a refrigerant; a compressor motor (60) configured to drive the compressor (58), the compressor motor (60) being powered by an energy storage device (152); an evaporator heat exchanger (76) operatively coupled to the compressor (58); a controller (82) to control operation of the transportation refrigeration unit (26); an ambient air temperature sensor (83) in electronic communication with the controller (82), the ambient air temperature sensor (83) detects ambient air temperature outside of the transportation refrigeration unit (26), wherein the controller (82) adjusts operation of a temperature control system (153) for the energy storage device (152) in response to the ambient air temperature, the temperature control system (153) adjusts a temperature of the energy storage device (26).

Abstract: A transportation refrigeration unit TRU and power system. The TRU (26) and power system including a compressor (58) configured to compress a refrigerant, an evaporator heat exchanger (76) operatively coupled to the compressor (58), and an evaporator fan (98) configured to provide return airflow (134) and flow the return airflow (134) over the evaporator heat exchanger (76).

Abstract: A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) operatively coupled to an evaporator heat exchanger (76) and an evaporator fan (98) configured to flow a return airflow (134) over the evaporator (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow (134) and configured measure the temperature thereof, a TRU controller (82) connected to the RAT sensor (142) that executes a process to determine an AC power requirement for the TRU (26) based on the RAT sensor (142); a generator power converter (164) configured to receive three phase AC power (163) from a three phase AC generator (162) and transmit a second DC power (165b) to an energy storage system (150); a power management system (124a) configured to receive three phase AC power (157) from at least the energy storage system (150) and generate a TRU DC power (129), and directing the TRU DC power (129) to the TRU system (26).

Abstract: A split trailer refrigeration unit for a tractor trailer includes a first portion (140A) having an electrically driven compressor (230), a condenser (210) and an evaporator (220). Also included is a second portion (140B), having an electrically driven compressor, a condenser and an evaporator. At least one of the first portion and the second portion include a set of power electronics (242) and a battery (240) connecting an electricity source to the corresponding electric compressor. The set of power electronics is configured to control power characteristics of power provided from the electricity source to the electric compressor. A frame (142) is configured to structurally mount each of the first portion and the second portion to a rear trailer door.

Abstract: A power system architecture configured to power a transport refrigeration system (20) based on a determined an AC power requirement. The system (20) includes a generator power converter (164) configured to receive the generator three phase AC power (163) from an AC generator (162), and provide a generator DC power (165). The system (20) also includes a grid power converter (184) configured to receive the grid three phase AC power from a grid power source (182), and provide a grid DC power (185), an energy storage device (152), the energy storage device (152) operable to provide a DC power (157) and connected to a variable DC bus, and a power management system (190) operably connected to direct power (195) the TRU (26) based on at least the AC power requirement.

Abstract: A transportation refrigeration unit TRU and power system. The TRU (26) and power system including a compressor (58), an evaporator heat exchanger (76) operatively coupled to the compressor (58), and an evaporator fan (98) configured to provide return airflow over the evaporator heat exchanger (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow (134) and configured measure the temperature of the return airflow (134), a TRU controller (82) operably connected to the RAT sensor (142) and configured to execute a process to determine an AC power requirement for the TRU (26) based on at least the RAT (142); a generator power converter (164), configured to receive a first DC power (163a) from a generator and transmit a second three phase AC power (165) to a power management system (124), the power management system (124) configured to direct AC power the TRU (26) based on the AC power requirement.