Energy Saving of an Electric Forklift with Hydraulic Accumulator

Energy saving of construction machinery is necessary to reduce the energy consumption and pollution. A novel hydraulic hybrid forklift for energy saving is proposed in this paper, as well as the control strategy. A hydraulic accumulator is used in the system to store the potential energy. Then the energy could be reused in the next cycle of work. The maximum energy saving efficiency could reach 56% in one cycle. The total energy saving efficiency is 19%. The system could save much energy with low cost. So, it is easy to be used in the real forklift system.