Provided are a defrosting control device, an air conditioner and a defrosting control method therefor. The device includes an airbag device, wherein the airbag device includes a mounting support (1), an airbag (2) and an inflation mechanism. When an air conditioner to be controlled enters a defrosting mode, the inflation mechanism inflates the airbag (2) such that same forms an airbag layer to isolate an outdoor heat exchanger of the air conditioner to be controlled from flowing air outside the outdoor heat exchanger. The defrosting control device can achieve the beneficial effects of a small defrosting heat loss, a good defrosting effect and a good user experience.

A control device is installed in the vehicle that is able to execute a fuel cut that stops fuel supply to an engine in a state in which the engine is rotating. In a case where there is a request for the fuel cut while there is a heating request in which heating of a vehicle cabin is performed using heat of an engine coolant, when a blowout port mode of air conditioning air is set to a defroster mode or a bi-level mode, the control device prohibits the fuel cut.

A recreational vehicle air conditioner and methods of operating a recreational vehicle air conditioner are provided. The recreational vehicle air conditioner may be configured for, and the method may include, receiving a mode selection input comprising one of a thermostat mode and a direct control mode. The recreational vehicle air conditioner may further be configured for, and the method may further include, operating the recreational vehicle air conditioner independently of an external display device when the mode selection input is thermostat mode and operating the recreational vehicle air conditioner in response to one or more commands from the external display device when the mode selection input is direct control mode.

Disclosed is a temperature control method which includes acquiring temperature data of a plurality of temperature detection points in a target environment; calculating, according to the temperature data, an average temperature value of the plurality of temperature detection points and a first temperature difference between the average temperature value and a target temperature value; determining whether an absolute value of the first temperature difference exceeds a first temperature difference threshold; and in response to the absolute value of the first temperature difference exceeding the first temperature difference threshold, controlling the temperature of the target environment by a variable universe fuzzy proportional integral derivative control algorithm.

The vehicle air conditioning apparatus comprises at least one physical condition information sensor which detects information on physical conditions of passengers in a vehicle as physical condition information. The vehicle air conditioning apparatus selectively executes an outside-air circulation control for discharging air from an interior of the vehicle to outside of the vehicle and introducing outside air to the interior of the vehicle from the outside of the vehicle and an interior-air circulation control for taking the air from the interior of the vehicle and returning the taken air to the interior of the vehicle. The vehicle air conditioning apparatus executes the outside-air circulation control when the electronic control unit determines that at least one of the passengers has an infection, based on the physical condition information.

A facility-based dual-purpose conditioned air blower system includes a heat exchange unit, a diverter apparatus, and a centrifugal blower. The heat exchange unit includes an ambient air inlet, heat exchange elements, and a conditioned air outlet. The diverter apparatus includes a diverter inlet fluidly coupled to the conditioned air outlet of the heat exchange unit, a first diverter outlet to the facility, and a second diverter outlet. The diverter apparatus is moveable between a first position wherein the first diverter outlet is closed and the second diverter outlet is open, and a second position wherein the first diverter outlet is open and the second diverter outlet is closed. The centrifugal blower includes a blower inlet fluidly coupled to the second diverter outlet of the diverter apparatus, and a blower outlet positioned to ventilate a trailer interior with conditioned air from the conditioned air outlet of the heat exchange unit.

An individual air conditioning control system for an electric vehicle, includes a heating, ventilation, and air conditioning (HVAC) body, an evaporator provided in the HVAC body, a PTC heater, an input unit for receiving set temperature of each of a driver's seat and a passenger's seat, left and right temperature sensing units of sensing an air temperature passing through a left side and a right side of the PTC heater, a control unit of outputting a control signal for controlling the PTC heater based on the set temperature input from the input unit and a measurement temperature measured from each of the left and right temperature sensing units, and a power supply unit of adjusting power supplied to the PTC heater according to the output PWM control signal of the control unit.

A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

The present invention relates to an air conditioner for a vehicle and, more particularly, to an air conditioner for a vehicle which is capable of miniaturization by integrally forming an air conditioning module and a cooling module so as to increase space utilization in an engine room and further enhance manufacturability.

Embodiments of the present invention provide a method for use in a vehicle, comprising determining a distance of a predetermined gesture from a reference location within a vehicle, and initiating an operation responsive to the gesture, wherein a mode of the operation is determined based upon the distance of the gesture from the reference location.