NOVELTY - The system has a piston whose motion under no-power period and a gas door are driven by a vibration system and an electric magnetic power of a coil. The current generated by an engine is used for driving a motor, and an electricity generator adopts a dynamic-coil typed electricity-generating system. A permanent magnet is connected with a high guiding magnetic body, and the piston is coupled with a connecting rod, a forcing plate, the coil and a long free spring. A position near to a cylinder is provided with a short free spring, and flues of the engine adopt a pressing-flaming typed work.    USE - Automobile system for forced vibration direct-acting generating electricity, cushion storing energy and electric driving.    ADVANTAGE - The system can optimize the compressing ratio of the engine under wider working situation, lower down the mechanism losing, and improve the efficiency of flue. The system can generate the direct current power direct through linear motion of the reciprocating engine piston and through driving coil or magnetic body. The piston and the coil can form the vibration system through the spring mechanism, and the piston is driven by the electric magnetic power of the vibration system and the coil when the piston does not work. The current generated by the engine can drive the motor to move after through the cushion of the capacitor. The system can optimize the distance of the piston and the compressing ratio through controlling the center to control the coil current in the engine, and can adjust the power through controlling the gas-inlet quantity by controlling the inputted working cylinder quantity and the gas-inlet distance. The electric magnetic power can compensate the energy of the forced vibration system, and the system can adjust the compressing ratio conveniently. The system is suitable for the pressing-flaming typed working of multiple flues.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of an automobile system.