A refrigerated display case having a housing defining a temperature controlled space and a refrigeration system coupled to the housing is provided. The refrigeration system is configured to be operable to affect a temperature of the temperature controlled space. The refrigeration system includes an actuator, a controller, and a sensor. The controller is configured to continuously update a stored position of the actuator based on measurement of an electric current provided to the actuator, retrieve the stored position after a power failure, and restart control based on the stored position of the actuator. The sensor is configured to communicate with the controller.

Provided is a refrigerating or warming apparatus. The refrigerating or warming apparatus may include a cavity or compartment of which at least a portion of a wall is provided as a vacuum adiabatic body, a machine room disposed at a side outside the cavity, a compressor accommodated in the machine room to compress a refrigerator, a first heat exchange module or assembly accommodated in the machine room to allow the refrigerant to be heat-exchanged, a second heat exchange module or assembly accommodated in the cavity to allow the refrigerant to be heat-exchanged, and a machine room cover which covers the machine room to separate air flow passages where an internal air flow and an external air flow have directions opposite to each other.

A transportation container includes a storage volume. A refrigeration system is contained within the storage volume. The refrigeration system includes a fan configured to ingest exterior air, a condenser coil immediately downstream of the fan, and a vent configured exhaust spent cooling air from the storage volume. A controller is configured to control the refrigeration system. the controller includes instructions configured to cause the refrigeration system to detect an indication of operational deterioration of a transportation container refrigeration system, reverse a rotational direction of an airflow fan such that air is drawn over a refrigeration coil and expelled from the transportation container using the airflow fan, and revert the rotational direction of the airflow fan at a conclusion of a cleaning operation.

Reinforcement learning is performed on control conditions of the perishable product environment by using information regarding freshness of perishable products by a freshness sensor to automatically control the perishable product environment. There are provided: a freshness determination section 520 acquiring information regarding freshness of a perishable product contained in a storage container; and an analysis section 530 learning, by reinforcement learning, an inside environment of the storage container for the freshness of the perishable product acquired by the freshness determination section 520 to decide a reward used in the learning. The analysis section 530 decides the reward based on the decrease in the freshness over a certain period of time under the inside environment for the freshness determined based on the freshness acquired by the freshness determination section 520. Then, the analysis section 530 learns the inside environment for the freshness based on the decided reward.

A system and method for determining a fluid consumption rate from a fluid tank is described. The fluid tank includes a fuel for an internal combustion engine and the internal combustion engine provides power to a powered system. The method includes determining instantaneous fluid consumption; determining an operating condition of the powered system, the powered system providing a load on the internal combustion engine; determining the load on the internal combustion engine and a state of the internal combustion engine; and calculating the fluid consumption rate based on the instantaneous fuel consumption, the load on the internal combustion engine, and the state of the internal combustion engine.

Systems, apparatuses and methods are provided herein for controlling the temperature of a product during delivery. A system for inventory management comprises: an internal compartment; and a delivery control circuit coupled to the internal compartment; a configuration control circuit coupled to the delivery container, the configuration control circuit configured to: identify a product for delivery in the internal compartment; determine an optimum delivery temperature for the identified product; and initially configure the internal compartment to provide the optimum delivery temperature for the identified product, wherein the delivery control circuit is configured to maintain the optimum delivery temperature in the internal compartment during delivery of the identified product.

The invention relates to a method for real-time performance check of transport refrigeration units comprising the steps of: comparing via controller temperature sensors by pairs and determining from these comparisons by pairs if one or more temperature sensors are defective or in some extent deviates from expected temperature readings; at the same time measuring/monitoring the mass flow of cooling agent through a compressor and through an evaporator expansion valve V.sub.exp which the controller by comparison determines if mass flow through the compressor do not deviate more than 25% from the mass flow through that evaporator expansion valve V.sub.exp; if said deviation of mass flow through the compressor is more than 25% different from said mass flow through the expansion device V.sub.exp, an error signal is provided

Provided is a refrigerating or warming apparatus. The refrigerating or warming apparatus may include a cavity or compartment of which at least a portion of a wall is provided as a vacuum adiabatic body, a machine room disposed at a side outside the cavity, a compressor accommodated in the machine room to compress a refrigerator, a first heat exchange module or assembly accommodated in the machine room to allow the refrigerant to be heat-exchanged, a second heat exchange module or assembly accommodated in the cavity to allow the refrigerant to be heat-exchanged, and a machine room cover which covers the machine room to separate air flow passages where an internal air flow and an external air flow have directions opposite to each other.

The present invention provides, in at least one embodiment, a module device, system, and method for controlling or modifying a cargo's microenvironment in a reefer during transit. The system remotely gathers, controls and modifies reefer parameters during transit. Additionally, the system remotely gathers, controls and modifies cargo parameters in a microenvironment surrounding or within the cargo.

Refrigeration units for cooling the interior of a trailer or vehicle, related software, systems and methods for deploying and managing such units. The refrigeration unit comprises a refrigeration system configured to mount to the trailer or vehicle. The refrigeration unit further comprises a battery rack configured to receive at least one of a plurality of rechargeable batteries so as to allow it to be swapped into and out of the rack to provide adaptive battery capacity. A power management system is configured to receive DC power from the plural batteries and deliver power to a compressor of the refrigeration system. A controller is configured to control the refrigeration system to cool the interior to a predetermined temperature.