Magnetic suspension free piston type six-stroke generator and internal combustion engine and control method for magnetic suspension free piston type six-stroke internal combustion engine

The invention particularly relates to a magnetic suspension free piston type six-stroke generator and internal combustion engine and a control method for the magnetic suspension free piston type six-stroke internal combustion engine. The internal combustion engine comprises a cylinder P and a variable air cylinder Y. A work section of a magnetic suspension work piston H comprises a square iron core G. One end of the square iron core G is provided with a first magnet exciting coil F, and a work piston H is arranged at the other end of the square iron core G; and a first magnet exciting coil set U is arranged on the upper surface of the square iron core G, and a second magnet exciting coil set Q is arranged on the lower surface of the square iron core G. a second magnet exciting coil S is fixed to the front portion of the interior of the cylinder P, a third magnet exciting coil set A is fixed to the upper portion of the interior of the cylinder P, and a fourth magnet exciting coil set R is fixed to the lower po