In the application, since the flow of air outside the vehicle compartment flowing through the upstream heat exchange part and the flow of air outside the vehicle compartment flowing through the downstream heat exchange part are opposite flows, a second heat exchanger through which the air outside the vehicle compartment flowing from the first fan through the downstream heat exchange part flows, a first heat exchanger is an orthogonal heat exchanger, the second heat exchanger that is a component of a refrigeration cycle execution system, the air in the vehicle compartment, which flows in from the inside air inlet by the rotation of the second fan and is discharged from the outlet outside the vehicle through the first heat exchanger, and the air outside the vehicle compartment, are exchanged with the first heat exchanger, it can be miniaturized along with the improvement of electricity cost.

A cooling system for efficiently cooling large-scale data storage devices embedded in a vehicle, and a smart vehicle including the same are disclosed. The storage device cooling system includes a storage housing section located at a ceiling-mounted structure of a vehicle, provided with an indoor space thereof in which a plurality of storage devices is kept and an opening/closing device configured to open or close the indoor space, a sensing circuit configured to detect a temperature of the indoor space, and an opening/closing controller configured to control operations of the opening/closing device in response to the temperature detected by the sensing circuit.

A system includes: at least one resistive humidity sensor disposed on a window of a vehicle and configured to detect a presence of fog formed on a surface of the window and to output a signal indicating whether the presence of fog formed on the surface of the window has been detected; a defogging unit equipped in the vehicle and configured to defog the window of the vehicle; and a controller coupled to the at least one resistive humidity sensor and the defogging unit and configured to receive the signal from the at least one resistive humidity sensor, to determine whether fog has formed on the surface of the window based on the received signal, and to actuate the defogging unit when it is determined that fog has formed on the surface of the window.

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.

Relative humidity or dew point temperature depending on changes in barometric pressure is measured without using any barometric pressure sensor. A humidity measuring device includes an elevation obtaining unit configured to obtain elevation of a humidity measurement point, a barometric pressure calculating unit configured to calculate barometric pressure at the humidity measurement point from a calculation formula into which a value of the elevation obtained by the elevation obtaining unit is input, and a humidity correcting unit configured to correct humidity on a basis of a barometric pressure value calculated by the barometric pressure calculating unit.

A vehicular air conditioner includes an air conditioning, a heater core, a heat pump cycle unit, a temperature detector, and a controller. The heat pump cycle unit includes a first inside heat exchanger disposed downstream of the heater core in a flow direction of a conditioning air, a second inside heat exchanger disposed upstream of the heater core in the flow direction of the conditioning air, and an outside heat exchanger. The temperature detector is configured to detect a passage air temperature, the passage air temperature being a temperature of the conditioning air that has passed through the heater core. The controller is configured to selectively switch a circuit layout of the heat pump cycle unit between a cooling circuit, a heating circuit, and a dehumidifying-heating circuit based on the passage air temperature.

A vehicular heat management system includes a compressor arranged on a heat pump type refrigerant circulation line, a high-pressure side heat exchanger arranged on the heat pump type refrigerant circulation line, an outdoor heat exchanger arranged on the heat pump type refrigerant circulation line, a plurality of expansion valves arranged on the heat pump type refrigerant circulation line, a low-pressure side heat exchanger arranged on the heat pump type refrigerant circulation line, a first expansion valve arranged on the upstream side of the outdoor heat exchanger, a second expansion valve arranged on the downstream side of the outdoor heat exchanger, and a control part configured to control opening degrees of the first expansion valve and the second expansion valve depending on whether icing occurs in the outdoor heat exchanger under a heat pump mode condition.

Methods and systems are provided for improving operation of a vehicle heating, ventilation, and air conditioning system. In one example, a method may include calibrating a vehicle humidity sensor position inside a cabin of the vehicle by obtaining one or more humidity measurements with one or more personal computing devices positioned inside the cabin, and may further include adjusting operation of the heating, ventilation, and air conditioning system responsive to the calibration. In this way, an interior humidity sensor of a vehicle may be regularly calibrated, which may improve operation of the vehicle heating, ventilation, and air conditioning system, and may further increase fuel economy.

A method for conditioning the air of the passenger compartment of an electric vehicle, which includes: a preliminary step conditioning the air in at least one portion of the passenger compartment by an air-conditioning device supplied with power by a power source external to the vehicle, when the vehicle is linked to the external power source; and a main step conditioning the air in the at least one portion of the passenger compartment, by an air-conditioning device supplied with power by a vehicle fossil power source during use of the vehicle; the preliminary step conditioning the air giving priority to the conditioning of the air, in a driver area of the vehicle. A system implementing such a method and an electric vehicle, in particular, an electric bus, implementing such a method or system is also provided.

A control device controlling a vehicular air conditioning system includes a defrosting operation control unit performing a defrosting operation in a refrigerant system when an outflow refrigerant temperature of an outdoor heat exchanger has become equal to or lower than a defrosting condition threshold value, a defrosting operation release instruction unit outputting a defrosting operation release instruction when the outflow refrigerant temperature has become equal to or higher than a defrosting release condition threshold value, and a vehicle information acquisition unit acquiring at least one of a position and a speed of a vehicle in which the vehicular air conditioning system is mounted. The defrosting operation release instruction unit outputs a defrosting operation release instruction even when the outflow refrigerant temperature is lower than the defrosting release condition threshold value in a case at least one of the position and the speed of the vehicle satisfies a predefined condition.