A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC SYSTEM OF WORK MACHINE AND WORK MACHINE
To suppress a delay in response of a solenoid proportional valve (45 (145)) without an excessive increase in power consumption.A hydraulic system (HS (HS1)) of a working machine (1) includes a hydraulic actuator (AC) to be driven by a hydraulic fluid, a control valve (V) to perform a switching operation for switching a flow rate of the hydraulic fluid supplied to the hydraulic actuator (AC), and a controller (70) to control the control valve (V). The control valve (V) includes a solenoid (S) and performs the switching operation in accordance with a current supplied to the solenoid (S). The controller (70) supplies, to the solenoid (S), a shift current (101) for causing the control valve (V) to perform the switching operation and intermittently supplies a standby current (100) when the shift current (101) is not supplied, the standby current (100) having a current value (Is) smaller than the shift current (101) and within a range in which the control valve (V) does not perform the switching operation.
HYDRAULIC SYSTEM OF WORK MACHINE AND WORK MACHINE
To suppress a delay in response of a solenoid proportional valve (45 (145)) without an excessive increase in power consumption.A hydraulic system (HS (HS1)) of a working machine (1) includes a hydraulic actuator (AC) to be driven by a hydraulic fluid, a control valve (V) to perform a switching operation for switching a flow rate of the hydraulic fluid supplied to the hydraulic actuator (AC), and a controller (70) to control the control valve (V). The control valve (V) includes a solenoid (S) and performs the switching operation in accordance with a current supplied to the solenoid (S). The controller (70) supplies, to the solenoid (S), a shift current (101) for causing the control valve (V) to perform the switching operation and intermittently supplies a standby current (100) when the shift current (101) is not supplied, the standby current (100) having a current value (Is) smaller than the shift current (101) and within a range in which the control valve (V) does not perform the switching operation.
HYDRAULIC SYSTEM OF WORK MACHINE AND WORK MACHINE
HYDRAULIKSYSTEM FÜR EINE ARBEITSMASCHINE UND ARBEITSMASCHINE
SYSTÈME HYDRAULIQUE DE MACHINE DE TRAVAIL ET MACHINE DE TRAVAIL
HORII HIROSHI (author) / MORI HIROYA (author)
2024-11-06
Patent
Electronic Resource
English