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).

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.

Disclosed is a transportation unit comprising: a plurality of roadway wheels including wheel, a plurality of continuously variable transmissions (CVTs) including a first CVT and a second CVT, the plurality of CVTs receiving rotational input from the wheel, and a generator that is rotationally driven by rotational output from the plurality of CVTs, and wherein each of the plurality of CVTs is engaged over one of a corresponding plurality of discrete wheel rotational speeds.

The present invention extends to a double canopy covered wagon. Interior canopy frame supports support an interior canopy over a portion of a wagon flooring surface and under larger exterior canopy frame supports. The exterior canopy frame supports support an exterior canopy over the interior canopy. Including interior and exteriors canopies increases insulation relative to a single canopy. Further, since the exterior canopy frame supports are larger than the interior canopy frame supports, air can flow between the interior and exterior canopies. Air flow between the canopies in combination with increased insulation facilitates more effective climate control inside a wagon.

Disclosed is a transport refrigeration unit (TRU) having: an engine configured to power a refrigeration system of the TRU, the engine including an air intake, the engine within an engine compartment of the TRU; an air management valve (AMV) fluidly coupled to the air intake; a first duct fluidly coupled to the AMV and including a first inlet within the engine compartment; and a second duct fluidly coupled to the AMV and including a second inlet that is exterior to the engine compartment and is configured to receive atmospheric air; wherein: the AMV is configured to modulate air into the engine from the first duct and the second duct, when a temperature of air within the AMV is above the first threshold and the temperature of air within the second duct is below the first threshold, to lower the temperature of air entering the engine to below the first threshold.

A common-mode choke coil includes a loop-shaped core, a cover made of a conductor covering at least part of the core, a first winding wound around an outer surface of the cover, and a second winding wound around the outer surface of the cover. The cover includes a first region around which the first winding is wound, a second region around which the second winding is wound, and two connection regions that connect the first region and the second region to each other in a circumferential direction. The cover has first and second slits in an inner circumferential surface. The first slit extends such that the first region is non-continuous with respect to a winding direction of the first winding. The second slit extends such that the second region is non-continuous with respect to a winding direction of the second winding.

An integrated thermal management module for a vehicle may include a chiller; a first reservoir portion through which electric part-cooling water passes, and a second reservoir portion through which high-voltage battery-cooling water passes; a first pump that circulates the electric part-cooling water through an electric portion, and a first valve that controls cooling water that has passed through the chiller or cooling water of the first reservoir portion to be selectively circulated through the electric portion by the first pump; and a second pump that circulates the high-voltage battery-cooling water through a high-voltage battery, and a second valve that controls the cooling water that has passed through the chiller or cooling water of the second reservoir portion to be selectively circulated through the high-voltage battery by the second pump.

A transport refrigeration system including: a transportation refrigeration unit configured to provide conditioned air to a refrigerated cargo space; an energy storage device configured to store DC electrical energy to power the transportation refrigeration unit; and a DC-to-AC variable invertor electrically connecting the energy storage device to the transportation refrigeration unit, the DC-to-AC variable invertor being configured to convert the DC electrical energy from the energy storage device to AC electrical energy in a variable continuous energy output to power the transportation refrigeration unit.

The present disclosure relates to a method for operating a temperature control system for a temperature controlled goods vehicle, wherein the temperature control system comprises: a solar panel and a temperature control unit comprising: one or more temperature control components; a battery coupled to the solar cell (200) for receiving a first charging current i.sub.1 from the solar cell; an engine operative to supply a second charging current i.sub.2 to the battery; and a controller. The method comprises: at the controller: monitoring a voltage of the battery; if the voltage of the battery exceeds a first battery voltage threshold for a first predetermined amount of time: determining a first energy count value representing an amount of energy delivered by the solar panel in a predetermined time period; if the first energy count value exceeds a first energy count value threshold: determining an average current value representing an average amount of energy delivered by the solar panel in the predetermined time period; and increasing a cycle threshold value that determines when the engine is deactivated so as to stop supplying the second charging current i.sub.2 to the battery based on the average current value.

A system and method for thermal event detection in a transport refrigeration unit that includes a safety controller (302) communicatively coupled to a linear heat detector (304) affixed to a hood (202) of the transport refrigeration unit. The safety controller is configured to detect a change in resistance of the linear heat detector and initiate an action like shutting off the fuel supply to an internal combustion engine inside the compartment. The linear heat detector is operative to create, subsequent to being exposed to a temperature greater than or equal to a threshold temperature in the interior compartment (208), a change in resistance along at least a portion of the linear heat detector. The safety controller is further configured to initiate an action upon having detected the change in resistance.