Energy control method and system of lift truck

An energy control system of a lift truck, wherein the energy control system comprises a work platform, a hydraulic system, a current distribution module, a power battery, a charging module, a battery heating module, and a hydraulic oil heating module, wherein the hydraulic system comprises a hydraulic element, an upper lifting oil cylinder, and a lower lifting oil cylinder;

• the hydraulic element is connected to a motor;
• the hydraulic system is configured to jack up the work platform and is configured to cause, when the work platform is lowered, the hydraulic oil to flow back to the hydraulic element for anticlockwise rotation and energy recycling;
• the motor is configured to convert power of anticlockwise rotation of the hydraulic element into electric energy;
• the current distribution module is configured to rectify the electric energy and distribute the electric energy to the power battery and the hydraulic oil for use;
• the charging module is configured to charge the power battery;
• the battery heating module is configured to heat the power battery;
• and the hydraulic oil heating module is configured to heat the hydraulic oil.