Air rail motor car lifting appliance, and control system and control method

The invention discloses an air rail motor car lifting appliance, a control system and a control method. The air rail motor car lifting appliance comprises a lifting appliance main beam, an unlocking and locking mechanism and a plurality of pairs of swing arm mechanisms, wherein each swing arm mechanism comprises a swing arm driving structure, a telescopic arm and a swing arm, the swing arm drivingstructure is fixed to the lifting appliance main beam, one end of the telescopic arm is connected with the swing arm driving structure, the other end of the telescopic arm is connected with one end of the swing arm, a lock catch structure is arranged at the other end of the swing arm, the swing arm driving structure drives the telescopic arm to extend and retract and to rotate around the centralaxis of the telescopic arm, and the telescopic arm drives the swing arm and the lock catch structure to move up and down and to rotate left and right. When the two telescopic arms of each pair of swing arm mechanisms extend an