Vehicle suspension bridge air suspension control system and control method thereof

The invention discloses a vehicle suspension bridge air suspension control system which comprises an electromagnetic valve, the electromagnetic valve is provided with an air inlet, an air outlet, an exhaust port and a valve body connector, a first electromagnetic valve set and a second electromagnetic valve set are arranged in the electromagnetic valve side by side, the air inlet is connected to an air bag air storage cylinder through a pipeline, and the air inlet end of the air bag air storage cylinder is connected with an air supplementing device. The system further comprises a control switch installed in a cab, the control switch is electrically connected to the valve body connector, and the invention further discloses a control method of the system. In heavy load, the suspension bridge is put down through a control switch in a cab, so that the effects of bearing weight and effectively improving vibration reduction of the vehicle are achieved; during no-load and half-load driving, the suspension bridge is