Method of assessment of energy consumption of forklifts in warehouses with specific operating conditions

Abstract

This paper presents the method for evaluating energy consumption by a forklift with front forks. The model describing the work takes into account the truck’s acceleration, driving at a constant speed, braking and the processes of raising and lowering the fork. Power consumption was estimated assuming the efficiency of the drive mechanism and the driving efficiency of the system lifting and lowering the fork carriage. A calculation model, in the form of non-linear differential equation, was solved by the approximate finite difference. On the basis of such a formulated model, the case of the truck work cycle VDI2198 was examined.