Control method for road roller machine, and road roller machine

A road roller machine, comprising:

• a main body;
• an engine disposed on the main body;
• a driving assembly disposed on the main body;
• a driving pump disposed on the main body and configured to drive the driving assembly;
• a vibration assembly disposed on the main body;
• a vibration pump disposed on the main body and configured to drive the vibration assembly;
• and
• a controller electrically connected with the engine, the driving pump and the vibration pump, wherein the controller is configured to execute a control method for a road roller machine, and the control method comprises:
• before starting the vibration pump, turning up, in response to a request of starting vibration, a revolving speed of the engine until the revolving speed exceeds a preset revolving speed range and turning down a displacement of the driving pump;
• starting the vibration pump;
• judging whether the vibration assembly has completed a vibration start;
• and
• turning down, after the vibration assembly completes the vibration start, the revolving speed of the engine to be within the preset revolving speed range, turning up the displacement of the driving pump, and turning up a displacement of the vibration pump, wherein an adjustment amount of the revolving speed of the engine is inversely proportional to an adjustment amount of the displacement of the driving pump.