Electric forklifts typically use a separate motor to drive the gear pump, providing hydraulic power for the lifting and tilting of the mast work system. At present domestic galvanizing hand pallet Jack, because there is no hydraulic motor speed control, hydraulic motor in the start, only high-speed rotation, will not change with the function and pressure automatically adjust the excess flow only through the relief valve flow back to the tank, Resulting in energy waste. Foreign new forklift, such as the LINDE E20 drum semi electric stackers, the use of advanced hydraulic pulse control technology, hydraulic pump pulse controller can respond to the hydraulic circuit, automatically balance the motor speed and fuel consumption, saving energy, the advantages of this control Is the high power utilization, no voltage peak, low noise hydraulic system, hydraulic components, wear and tear is also low, thus greatly improving the vehicle's reliability and service life.