Power battery SOC calibration method, device and equipment and readable storage medium

The invention relates to a power battery SOC calibration method, a power battery SOC calibration device, power battery SOC calibration equipment and a readable storage medium, and relates to the technical field of hybrid power commercial vehicle whole vehicles. The real-time accumulated throughput electric quantity of the power battery, the real-time accumulated travelled distance of the vehicle and the real-time accumulated running duration of the vehicle are obtained; determining whether SOC initial value calibration needs to be carried out or not based on the real-time accumulated throughput electric quantity, the real-time accumulated travelled distance and the real-time accumulated operation duration; if it is determined that the SOC initial value needs to be calibrated, the engine and the driving motor are controlled to fully charge the power battery so that the SOC initial value can be calibrated to be 100%, and if it is determined that the SOC initial value does not need to be calibrated, the step of