Charging protocol communication method, device and equipment and computer readable storage medium

The invention discloses a charging protocol communication method, which comprises the following steps that: power supply output equipment receives a charging data request, adjusts power supply outputparameters and determines charging data, and the charging data request consists of a first logic value, a second logic value and a guide pulse. The invention further discloses a charging protocol communication device and equipment and a readable storage medium. A charging data request sent by charged equipment is received through power supply output equipment; according to the charging data request, electrical parameters output by the power supply are adjusted, the electrical parameters are output, charging data are determined, the charging data request comprises an output voltage value, an output current limiting value and a cable resistance compensation value, and finally, the charging data request is sent through D + and D-signals of the charging interface. Charging protocol communication between the power outp