The invention discloses a
synchronous control system and method for a heavy-duty locomotive. The
synchronous control system is characterized in that an ATP (
automatic train protection) plug-in box and an ATO (
automatic train operation) plug-in box transfer a message to
wireless COMs (
component object model) by an
Ethernet interface, transfer a message to a DMI (
desktop management interface) by a 422 interface and are in hard wired connection with
vehicle control. The
synchronous control method comprises the following steps that: a ground management
GSM-R (
global system for mobile communications for railway) network sends an operation command to a master-control locomotive by a ground communication node; after the
wireless COM of the master-control locomotive receives the command, the command is sent to the ATP / ATO equipment of the master-control locomotive; the ATP / ATO equipment calculates the traction force or the
brake force of the master-control locomotive and a slave-control locomotive according to the line data and the current state of the locomotive, and outputs the command; the command is sent to the ground communication node by the
wireless COM of the master-control locomotive; the communication node forwards the command to an intermediate locomotive and the slave-control locomotive according to an IP (
internet protocol) address; after receiving the respective command, the wireless COM of the intermediate locomotive and the wireless COM of the slave-control locomotive forward the respective commands to the ATP / ATO equipment of the locomotive; after the synchronous
control system receives the command, driving or
brake control is carried out, and the locomotive marshaling control is guaranteed to be synchronous.