Automotive climate control

Automotive climate control

A system for providing a comfortable environment within the passenger compartment of a vehicle. Controlled ventilation is utilized, along with a heater, an air conditioner, or an integrated heater and air-conditioner system. Linked to the setup is a windshield defrosting and defogging system capable of clearing the windshield. Some vehicles have a ventilation-air filter which cleans the outside air that enters the passenger compartment through the fresh-air inlet. The increasing glass area of many passenger vehicles places an additional load on the air conditioner. Many vehicles incorporate solar-control glass to reduce solar transmission to the interior.


There are two types of passenger-compartment heaters: engine-dependent and engine-independent. The engine-dependent heater utilizes waste heat from the engine. The engine-independent heater includes a small combustion chamber in which fuel is burned.

Most vehicles have a liquid-cooled engine and an engine-dependent heater through which hot engine coolant flows. The coolant passes through the tubes of a tube-and-fin heater core (see illustration) while air flows between the fins. Heat output into the passenger compartment is regulated by controlling either the coolant flow or the airflow. An electric blower motor may run at various speeds to help move the air. When the heater is turned off, a coolant flow-control valve may close to stop the flow of coolant through the heater core. See Dewar flask, Engine cooling

Schematic of an automotive air conditionerenlarge picture
Schematic of an automotive air conditioner

Air conditioning

When the outside temperature is above 68°F (20°C), the passenger compartment may be uncomfortable for the occupants unless the inside air is cooled. Cooling is provided by a mobile, vehicle-mounted refrigeration system known as an automotive air conditioner. The automotive air conditioner combines the refrigeration system with an air-distribution system and a temperature-control system to cool, clean, dry, and circulate passenger-compartment air. Cooling is provided by a mechanical vapor-compression refrigeration system with five major components: compressor, condenser, refrigerant flow-control valve, evaporator, and a receiver or accumulator that includes a desiccant. See Compressor, Evaporator, Heat exchanger, Refrigeration

Operation, air temperature, and air distribution through the passenger compartment may be controlled either automatically or manually by the driver. In some vehicles, conditioned air distribution can be controlled for each seat or seating position. See Air conditioning

References in periodicals archive ?
Global law firm White & Case LLP has advised the lenders, including Commerzbank Aktiengesellschaft as global coordinator, on the financing of the acquisition of Automotive Climate Control Inc.
14, 2014 /PRNewswire/ -- Research and Markets has announced the addition of the "Global Automotive Climate Control Market 2014-2018" report to their offering.
The world's first automotive climate control unit that can be used across vehicle models
To be capitalized at $2 million, MHI Automotive Climate Control (Shanghai) Co.
When the Visteon plant in Connersville, IN, was assigned production of scroll compressors for automotive climate control systems, it turned to CIMTEC centerless microfinishers from IMPCO Machine Tools, Lansing, MI, on two critical components.
The company has leveraged these capabilities to develop novel sensor technology that addresses a wide range of target markets such as thermostats, automotive climate control, printers, wireless sensor networks, security systems, gas leak detectors, white goods, and food and drug transportation.
DENSO's Highly Standardized Automotive Climate Control Unit can be used across vehicle models; smaller size means more leg room for car buyers
The market for automotive climate control, determining the trends and topical issues;
This report covers the present scenario and the growth prospects of the Global Automotive Climate Control market for the period 2014-2018.
These engineers have co-authored technical papers related to automotive climate control, lighting and electronics technologies that will be presented during the Congress.
When fully operational, the new technical centre will accommodate up to 60 highly qualified engineers and technicians who will initially focus on developing automotive climate control systems for Japanese and European customers.
This is the direct result of our acquisition in the summer and fall of 2004 of the Automotive Climate Control division of WiniaMando in Korea and China.

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