Calibration method, system and device for vehicle engine revolution speed and equipment

The embodiment of the invention provides a calibration method for vehicle engine revolution speed and equipment. The method comprises the steps of obtaining an accelerator calibration instruction; according to the accelerator calibration instruction, regulating a pump-control proportional valve and a pilot relief valve, and calibrating an accelerator knob; according to the calibrated accelerator knob information, sending an accelerator percentage instruction to an engine controller and controlling the engine revolution speed; if the difference between the real-time engine revolution speed andthe minimum set engine revolution speed is smaller than a preset threshold, obtaining a first accelerator opening value; if the difference between the real-time engine revolution speed and the maximumset engine revolution speed is smaller than a preset threshold, obtaining a second accelerator opening value; and according to the minimum set engine revolution speed, the maximum set engine revolution speed, the first accele