PROBLEM TO BE SOLVED: To provide a control device for damping force variable damper and the like in which a solenoid valve is used to vary a cross sectional area of a channel, and which hardly have a continued large current flowing through the solenoid valve and which hardly cause a coil to be short-circuited.SOLUTION: A control device for damping force variable damper comprises: a target current determination part 161 for determining a target current ITA to be supplied to a solenoid valve which controls a damping force of the damping force variable damper; an upper limit setting part 163 for setting an upper limit value of the current to be supplied to the solenoid valve; a supply current determination part 166 for determining a supply current supplied to the solenoid valve based on the target current ITA and the upper limit value. The upper limit setting part 163 comprises: a first upper limit setting part 163b for determining a first upper limit value based on an actual current IM that has been supplied to the solenoid valve; and a second upper limit determination part 163c for determining a second upper limit value based on a third upper limit value at the last power-off time and an elapsed time since the last power-off time; and a selection part 163a for selecting an upper limit value from the first and the second upper limit values.SELECTED DRAWING: Figure 8
【課題】流路の断面積を変化させるために電磁弁を用いた場合に、電磁弁に通電する電流が大きい状態が続きにくく、コイルが短絡しにくい減衰力可変ダンパの制御装置等を提供する。【解決手段】減衰力可変ダンパの減衰力を制御するソレノイドバルブに対して供給する目標電流ITAを決定する目標電流決定部161と、ソレノイドバルブに供給する電流の上限値を設定する上限設定部163と、目標電流ITAおよび上限値から供給電流ITFを決定する供給電流決定部166とを備え、上限設定部163は、ソレノイドバルブに供給された実電流IMに基づき上限値を決定する第1の上限設定部163bと、前回電源を切断したときの上限値と切断してからの経過時間とから上限値を決定する第2の上限設定部163cと、これらを選択する選択部163aと、を備える減衰力可変ダンパの制御装置。【選択図】図8
CONTROL DEVICE FOR DAMPING FORCE VARIABLE DAMPER AND DAMPING FORCE VARIABLE DAMPER SYSTEM
減衰力可変ダンパの制御装置および減衰力可変ダンパシステム
2016-08-04
Patent
Electronic Resource
Japanese
CONTROL DEVICE FOR DAMPING FORCE VARIABLE DAMPER AND DAMPING FORCE VARIABLE DAMPER SYSTEM
European Patent Office | 2016
|CONTROL DEVICE FOR DAMPING FORCE VARIABLE DAMPER AND DAMPING FORCE VARIABLE DAMPER SYSTEM
European Patent Office | 2016
|CONTROL DEVICE FOR DAMPING FORCE VARIABLE DAMPER AND DAMPING FORCE VARIABLE DAMPER SYSTEM
European Patent Office | 2016
|