A control apparatus includes a target acceleration obtaining device for
obtaining a target acceleration of a hydraulic motor based on an operation
amount of a lift lever; a torque command value obtaining device for
obtaining a torque command value of a hydraulic motor based on the target
acceleration; a determining device for determining as a non-regeneration
state or as a regeneration state based the torque command value; and a
change-over control device for changing over a change-over member so as to
couple a lift cylinder to a flow rate control valve when determined as the
non-regeneration state, and for changing over the change-over member so as
to couple the lift cylinder to a hydraulic pump and making an inverter
controller control the hydraulic motor in accordance with the torque
command value when determined as the regeneration state.
