Forklift and method for controlling induction motor applied to the same

摘要

A forklift having a cargo apparatus (7), the responsiveness of which to the operation by a user is improved. The forklift has: a DSP (2) which generates a frequency instruction f* in response to the operation to a cargo apparatus operation lever (10), a voltage instruction V* from the frequency instruction f* by using the VVVF control, inverter control signals from the voltage instruction v*; an inverter (4) which generates the three-phase electric power in response to the inverter control signal; a hydraulic pump (6); an induction motor (5) driving a hydraulic pump (6) by using the three-phase electric power; and a cargo apparatus (7) which is driven by the hydraulic pressure supplied from the hydraulic pump (6).