Integrated double-planet-row longitudinal hybrid power device and operation method thereof

The invention relates to the technical field of transmission devices for automobiles, and discloses an integrated double-planet-row longitudinal hybrid power device. The device comprises an engine and a first motor and further comprises a planet gear coupling mechanism, the planet gear coupling mechanism comprises a first planet row and a second planet row, the first planet row comprises a first sun gear, a first planet gear and a planet carrier, the second planet row comprises a second sun gear and a second planet gear, the second sun gear is connected with the first motor through a motor input shaft, the first sun gear is connected with the engine through a first input shaft, the output end of the planet carrier is fixedly connected with an electromagnetic locking clutch, the electromagnetic locking clutch is connected with a gear ring, and the gear ring is constantly meshed with the two planet gears. The invention further discloses an operation method of the integrated double-planet-row longitudinal hybrid