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1. (WO2017187687) RAISING/LOWERING CONTROL DEVICE FOR WORK VEHICLE

Pub. No.:    WO/2017/187687    International Application No.:    PCT/JP2017/002957
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Sat Jan 28 00:59:59 CET 2017
IPC: A01B 63/10
Applicants: KYB CORPORATION
KYB株式会社
Inventors: ITO, Tatsuo
伊藤 達夫
MATSUURA, Tooru
松浦 亨
Title: RAISING/LOWERING CONTROL DEVICE FOR WORK VEHICLE
Abstract:
This raising/lowering control device (100) is provided with: a position acquisition unit (40) for acquiring an extended/retracted position of a hydraulic cylinder (2); a target setting unit (41) for setting a target position (T) of the hydraulic cylinder (2) corresponding to an operation input by an operator; a control unit for controlling the amount of current to solenoid valves; and an input determination unit (42) which determines whether the operation input by the operator is an open command requesting open control to fully open the solenoid valves or a position control command requesting position control in which the extended/retracted position of the hydraulic cylinder (2) is controlled by driving the solenoid valves (a first valve (20) and a second valve (25)) in accordance with the amount of operation input. If the input determination unit (42) determines that the operation input is the open command, the control unit performs the open control by carrying out non-integrating type control.