The practice and the theory proved that powertrain mounting system design is self-contradictory. On one hand, mounting system needs to have the high rigidity to limit engine's movement.

This paper puts forword a improved method to make up the insufficiency of actual decoupling design for motor power assembly mounting system .

Absrtact: a reasonable design for engine mounting system is very important for travelling comfort, and very useful to prolong the use time of engine and other component too.