Smart active mount

A smart active mount apparatus comprising:

• an insulator disposed in a case to fix an internal core and define a liquid chamber;
• a lower orifice plate disposed in the case to partition the liquid chamber into an upper liquid chamber and a lower liquid chamber, and having an orifice to guide a fluid flow between the upper liquid chamber and the lower liquid chamber;
• an upper orifice plate disposed above the lower orifice plate;
• a membrane disposed between the lower orifice plate and the upper orifice plate;
• a diaphragm disposed under the lower orifice plate in the case to define the lower liquid chamber together with the lower orifice plate between the lower orifice plate and the diaphragm;
• an air chamber defined between the membrane and the lower orifice plate;
• a solenoid valve connected to the air chamber, wherein the air chamber selectively fluidically-communicates with the atmosphere;
• and
• a generator disposed to the diaphragm, the generator generating electric power by movement or deformation of the diaphragm to supply the electric power as actuating power of the solenoid valve,
• wherein the generator generates the electric power when the movement of the diaphragm increases while a vehicle travels on a predetermined road, and the solenoid valve is operated to be closed when the electric power generated by the generator reaches a predetermined level, and
• wherein the generator generates the electric power which does not reach the predetermined level by the movement of the diaphragm while an engine idles, and the solenoid valve is operated to be opened when the electric power generated by the generator does not reach the predetermined level.