A controller performs a prior determination by determining whether air cooling of a passenger compartment by free cooling control is possible based on a target value of a temperature in the passenger compartment that is set in advance, an outdoor air temperature, and an indoor temperature. The controller also performs a free cooling execution determination by determining whether to perform the free cooling control by comparing (i) a free cooling performance value that depends on a temperature difference between the outdoor air temperature and the indoor temperature and indicates a capacity of air cooling by the free cooling control, and (ii) an indoor heat load value that depends on a vehicle occupancy rate of passengers in the passenger compartment and indicates a difficulty of a temperature decrease in the passenger compartment.

A system for a vehicle includes an air conditioning compressor, and a controller configured to operate the compressor based on temperature value, responsive to the temperature values being faulty and refrigerant pressure values exceeding a first threshold, operate the compressor based on the refrigerant pressure values, and responsive to the refrigerant pressure values falling below a second threshold, deactivate the compressor for a rest of a drive cycle.

System, methods, and other embodiments described herein relate to automatically adjusting a climate of a vehicle based on detecting the type of clothing a vehicle occupant is wearing. In one embodiment, the method includes, in response to acquiring an identifier from a reader, where the identifier being associated with a tag affixed to a wearable article in proximity of the reader, determining a type of the wearable article based on the identifier. The method includes controlling a climate control system based at least in part on the type of the wearable article.

An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

A system for vehicle component cooling includes a main body defining a passenger compartment to support passengers of the vehicle. The system also includes a heating, ventilation, and air conditioning (HVAC) unit to output conditioned air into the passenger compartment. The system also includes a vehicle component to generate heat and having a component temperature. The system also includes a cooling channel having an inlet located in the passenger compartment and an outlet to output the conditioned air from the passenger compartment towards the vehicle component. The system also includes at least one sensor to detect data corresponding to the component temperature of the vehicle component. The system also includes an electronic control unit (ECU) to control the HVAC unit to increase or decrease a cabin temperature to adjust the component temperature based on the detected data.

Comfortable vehicle interior air conditioning is realized while giving an appropriate temperature difference to air blown out from outlets. A vehicle air-conditioning device 1 includes an air mix damper 28, a FOOT outlet 29A, and a VENT outlet 29B. A control device has a B/L mode to blow out air from both of the FOOT outlet and the VENT outlet to a vehicle interior. In the B/L mode, the control device sets a target air volume ratio TGSW to be within a predetermined intermediate range of an air volume ratio SW by the air mix damper, and calculates a target heater temperature TCO on the basis of a target outlet temperature TAO and the target air volume ratio TGSW.

The present invention relates generally to an automatic cooling/heating control method of an air conditioner for a vehicle. The present invention is intended to propose the control method, wherein instead of controlling indoor temperature via manual manipulation, operation modes set in figurative languages, not temperature, are used so as to automatically control indoor cooling/heating, whereby an atmosphere more pleasant than an atmosphere provided by a conventional method is efficiently provided and manipulation frequency of a console is reduced. To achieve the above objects, the control method includes: selecting an air operation mode desired by a user; starting an initial operation by the air conditioner after determining whether to cool, heat, or fan; setting the indoor temperature according to the outdoor temperature; resetting the set indoor temperature by using a correction value according to present indoor temperature; and operating by setting a reset indoor temperature to be a final set temperature.

A sensor device for calculating air temperature includes a support structure, to be traversed by the air and defining a seat having an air inlet and an air outlet, and a sensor arranged inside the seat to detect at least one first value and at least one second value of the air temperature that traverses the seat. The sensor device is configured so that, when detecting the first and second value, the air traverses the seat at a first and at a second speed, at which the sensor has a first and second heat transfer coefficient and first and second radiant power. The ratio between air speeds, heat transfer coefficients, or radiant powers is predetermined. The sensor device can be used with a data processing logic unit that calculates the air temperature starting from the first value, the second value, or the ratios between air speeds and radiant powers.

A device for determining a temperature in a passenger compartment of a vehicle comprising a sensor unit for detecting infra-red radiation and a temperature determining unit. The temperature determining unit may be configured so as, in dependence upon the measurement data provided by the sensor unit, to determine a surface temperature of a predetermined object located in the vehicle passenger compartment and, from the determined surface temperature of the object using a first functional relationship, to determine an air temperature in the vehicle passenger compartment. The temperature determining unit may be configured as an alternative or in addition thereto so as, in dependence upon the measurement data provided by the sensor unit, to determine a surface temperature for at least one passenger compartment occupant, and from the determined surface temperature using a second functional relationship to determine a measurement for the level of personal comfort.

A system includes a blower, a blower sensor, and at least one processor. The blower sensor is operably coupled to the blower and configured to obtain blower operational information. The at least one processor is operably coupled to the blower and the blower sensor, and is configured to determine an operational-based power using the blower operational information; determine an operational-based density using the operational-based power; and control the blower using the operational-based density.