To provide a characteristic acquisition device of an electromagnetic valve which can properly acquire a characteristic in consideration of a hysteresis of a solenoid.SOLUTION: A characteristic acquisition device for acquiring operation characteristics Zip, Ziq of a linear-type electromagnetic valve for adjusting pressure Pa of a working fluid discharged by a fluid pump which is driven by an electric motor comprises: "a supply part for supplying a current Ia to the electromagnetic valve"; "an adjustment part for adjusting a rotation number Na of the electric motor"; "a detection part for detecting the pressure Pa"; and "a learning part for storing data Dp, Dq of the pressure Pa to the current Ia, and deciding the operation characteristics Zip. Ziq on the basis of the data Dp Dq". When the supply part keeps the current Ia constant, and the adjustment part changes the rotation number Na and then keeps it constant, the learning part stores the data Dp, Dq.SELECTED DRAWING: Figure 2
【課題】電磁弁の特性取得装置において、ソレノイドのヒステリシスが考慮されて、適正に特性が取得され得るものを提供する。【解決手段】特性取得装置は、電気モータで駆動される流体ポンプが吐出する作動液体の圧力Paを調節するリニア型の電磁弁の作動特性Zip、Ziqを取得するものであって、「電磁弁に電流Iaを供給する供給部」と、「電気モータの回転数Naを調節する調節部」と、「圧力Paを検出する検出部と、「電流Iaに対する圧力PaのデータDp、Dqを記憶し、データDp、Dqに基づいて作動特性Zip、Ziqを決定する学習部」と、を備える。そして、学習部は、供給部が電流Iaを一定に維持し、調節部が回転数Naを変化した後に一定に維持する場合にデータDp、Dqを記憶する。【選択図】図2
CHARACTERISTIC ACQUISITION DEVICE OF ELECTROMAGNETIC VALVE AND BRAKE CONTROL DEVICE OF VEHICLE HAVING THE DEVICE
電磁弁の特性取得装置、及び、該装置を備えた車両の制動制御装置
2023-04-04
Patent
Electronic Resource
Japanese
BRAKE CONTROL DEVICE AND ELECTROMAGNETIC VALVE FOR BRAKE CONTROL DEVICE
European Patent Office | 2019
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