Study On Control Strategy For Energy Recovery Of Parallel Type Hybrid Forklift

In recent years, the logistics industry has developed greatly, and it provides a broad development stage for short-distance transport loading and unloading forklift. Demand for forklift is growing at20%a year.However, the forklift is facing two challenges in its development i.e. environmental and energy as the same as vehicle industry; Compare with the traditional forklifts, Hybrid forklift not only can reduce the energy consumption and exhaust emissions of traditional forklift, but also can solve the disadvantages of frequent charging of pure electric forklift. Therefore recycling energy maximum has very important significance for hybrid vehicles; This thesis is aimed to the simulation research on Energy Recover Control Strategy of hybrid forklift.For the six tons of motor-assisted hybrid forklift, a backward simulation model was built in the matlab/simulink environment, according to the method of modeling and simulation of hybrid vehicles, forklift hybrid system including the engine, motor, battery, drive system, as well as lifting the decline in system and other major parts modeling. Taking into the account the actual operating conditions of the forklift and working characteristics of the lifting mechanism of energy, this article study the recovery control strategy simulation. At last, based on the analysis of the traditional internal combustion forklift test conditions and the actual operation characteristics and design parameters of the forklift, the simulation conditions of the hybrid forklift were given, and then in the working conditions of the design, the hybrid forklift energy recovery control strategy was simulated and the result of the simulation was got.In the simulation, the result of the two control methods of the max efficiency and the max power were got in energy recovery system. And this gave a reference for the subsequent research of the energy recovery.