ELECTRONIC CONTROL ENGINE MOUNT

摘要

PURPOSE:To raise merchandise value and improve controllability of an electronic control engine mount by using inexpensive actuator. CONSTITUTION:A main fluid room 20 and an auxiliary fluid room charged with incompressive fluid are communicated with each other through an orifice 23. An opening 41a having the same configuration as the cross section of a groove 23b forming the orifice 23 is drilled in a piston 41 which is integratedly constructed with a movable coil 38 through a yoke 37 and the like. An ECU makes switching of the power supply for the movable coil 38 in response to the operating condition from OFF to ON as shown on the drawing. The movable coil 38 then is pulled downwards together with the piston 41 as resisting to the energy force of a spring 36. Thus the orifice 23 in the communicating condition until then is changed to the cutoff condition and a small spring constant is changed to a large spring constant.