Control method and control system for AMT heavy-type special car transfer case shifting

The invention discloses a control method and a control system for AMT heavy-type special car transfer case shifting. The control system comprises a car body controller BCU, an engine ECU, a transmission TCU, a transmission shifting actuating mechanism, a transfer case switch, a transfer case and an instrument. The engine ECU, the transmission TCU, the transmission shifting actuating mechanism, the transfer case switch, the transfer case and the instrument are connected with the car body controller BCU. The control method and the control system for the AMT heavy-type special car transfer case shifting have the advantages that clutch disengaging and automatic transfer case controlling of an ATM heavy-type special car are achieved, transfer case shifting can be directly carried out by a driver, the driving technique difficulty is lowered, the driving operating intensity is greatly lowered, the car performance is improved, and the safety and the reliability are achieved.