Multi-oil cylinder synchronous control system and control method thereof

The invention provides a multi-oil cylinder synchronous control system for a transportation system and a control method thereof. The conveying system comprises a driving flatcar and a driven flatcar which are connected with each other; the multi-oil-cylinder synchronous control system comprises a main controller, an oil tank, an oil supply main path and an oil return main path, wherein an oil inlet end of the oil supply main path extends into the oil tank; an oil outlet end of the oil return main path extends into the oil tank; and a plurality of jacking control loops which are connected in parallel, all jacking control loops are equally divided into two groups, wherein the first group of jacking control loops are arranged on the driving flatcar, the second group of jacking control loops are arranged on the driven flatcar, and each jacking control loop comprises an electromagnetic proportional reversing valve, a bidirectional hydraulic lock and a hydraulic jacking cylinder, wherein theelectromagnetic proporti