Study on electromagnetic actuator active engine mount with adaptive feed-forward control

The authors have developed a new type of active engine mount. The active engine mount is consisted of an electromagnetic actuator and an inertia-modulator hydraulic mount. The decoupler motion is controlled by the dynamic force generated by the electromagnetic actuator .The pressure in the upper chamber is changed and as a result the net output force from the mount to the chassis is controlled . The filtered x-LMS adaptive feed-forward control was chosen as control method. Based on force analyses of system parts, a mathematical model of the active engine mount was established. And an experimental device was designed and produced. The result indicate that the active engine mount can achieve better vibration isolation performance than passive engine mount.