公开(公告)号：US20190116718A1

公开(公告)日：2019-04-25

申请号：US16092473

申请日：2017-01-27

Applicant: KYB Corporation

Inventor： Tatsuo ITO ,  Tooru MATSUURA

IPC: A01B63/10 ,  B66B1/34 ,  B66B1/40 ,  F15B13/02 ,  F15B21/08

Abstract: A lifting control device includes: a position acquisition portion configured to acquire an extended or contracted position of the hydraulic cylinder; a target setting portion configured to set a target position of the hydraulic cylinder; a control portion configured to control an energized amount of the solenoid valve; and an input judging portion configured to judge whether the operational input is an opening command to perform an opening control in which the solenoid valve is made to be fully open or is a positional control command to perform a positional control in which the solenoid valve is actuated according to an operation input amount to control the extended or contracted position of the hydraulic cylinder, wherein when the operational input is judged as the opening command by the input judging portion, the opening control is performed due to the non-integral type control by the control portion.