To provide a fluid supply device and a pressing apparatus capable of detecting abnormality highly precisely when the abnormality of a solenoid valve occurs, in the fluid supply device and the pressing apparatus provided with a pump driven by an electric motor, the solenoid valve of which a valve opening is changed in accordance with a supplied control electric current and a control device which supplies the electric current to the electric motor and the solenoid valve.SOLUTION: A fluid supply device 100 includes an electric motor 80, a pump 81 driven by the electric motor 80, a solenoid valve 82 of which the valve opening is changed in accordance with a supplied control electric current and a control device 9 which supplies a drive electric current to the electric motor 80 and supplies the control electric current to the solenoid valve 82. Therein, the control device 9 judges that abnormality occurs on the solenoid valve 82 when an actuation state of the electric motor 80 when changing the control electric current during actuation of the electric motor 80 is not changed over a threshold.SELECTED DRAWING: Figure 6
【課題】電動モータによって駆動されるポンプと、供給される制御電流に応じて弁開度が変化する電磁弁と、電動モータ及び電磁弁に電流を供給する制御装置とを備えた流体供給装置及び押圧装置において、電磁弁の異常が発生した際にその異常を高精度に検出することが可能な流体供給装置及び押圧装置を提供する。【解決手段】電動モータ80と、電動モータ80によって駆動されるポンプ81と、供給される制御電流に応じて弁開度が変化する電磁弁82と、電動モータ80に駆動電流を供給すると共に電磁弁82に制御電流を供給する制御装置9とを備える流体供給装置100において、制御装置9は、電動モータ80の作動中に制御電流を変化させたときの電動モータ80の作動状態が閾値を超えて変化しないときに電磁弁82に異常が発生していると判定する。【選択図】図6
FLUID SUPPLY DEVICE AND PRESSING APPARATUS
流体供給装置及び押圧装置
2019-09-05
Patent
Electronic Resource
Japanese
IPC: | F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |