THE TECHNOLOGICAL TREND OF VEHICLE’S ELECTROMAGNETIC CONTROL VALVE (ECV)

In accordance with CO2 emissions and fuel efficiency regulations of each country, external valves of air-conditioner compressor for vehicle affecting exhaust gas and fuel efficiency should be accurately controlled, and understanding on the related function elements of electromagnetic control valve (ECV) as well as technology development should be realized together. Overseas individual institutions and groups, etc. are analyzing force, pressure, and temperature, etc. acting on components of the valves by using related theories and analysis programs for application to practices. In the present article, technological trends of the electromagnetic control valve (ECV) that drives the plunger and controls flow rates by applying electromagnetic forces as a function of inputted electric currents among externally-controlled valve methods for variable swash plate-type compressors are described