Hybrid-electromagnetic suspension capable of self-powering and control method thereof

A hybrid electromagnetic suspension capable of self-powering, comprising an oil storage cylinder (17) which is internally nested with a working cylinder (18), the oil storage cylinder (17) and the upper end of the working cylinder (18) are fixed together by a pressure shield cover (6), the outer wall of the oil storage cylinder (17) is connected with an inner sleeve (5) of the linear motor through a sliding pair, a upper-end cover (4) of the inner sleeve of the linear motor is installed at the upper end of the inner sleeve (5) of the linear motor, a piston (19) is internally installed in the working cylinder (18), a piston rod (3) is fixed on the piston (19), the piston rod (3) passes through both the pressure shield cover (6) and the upper-end cover (4) of the inner sleeve of the linear motor, and then is fixed and connected with the upper-end cover (4) of the inner sleeve of the linear motor;

• the inner sleeve of the linear motor (5) is located inside an outer sleeve (12) of the linear motor, and a permanent magnet (13), an iron core (14) and an excitation coil (15) are installed between the inner sleeve (5) of the linear motor and the outer sleeve (12) of the linear motor, the bottom of the working cylinder (18) is provided with a first pipeline (26) of working cylinder and a second pipeline (29) of working cylinder, the bottom of the oil storage cylinder (17) is provided with an oil storage cylinder pipeline (27), the piston rod (3) is provided with a piston rod pipe hole (2), one end of the piston rod pipe hole (2) is connected with the rod side of the working cylinder (18), the other end of the piston pipe hole (2) and the first pipeline (26) of the working cylinder are both connected to the pipeline of a first energy feeding unit, the second pipeline (29) of the working cylinder and the oil storage cylinder pipeline (27) are both connected to the pipeline of a second energy feeding unit.