To provide a hydraulic circuit system with an abnormality diagnosis function that can determine an abnormality of a hydraulic circuit.SOLUTION: A hydraulic circuit system with an abnormality diagnosis function comprises at least one positive displacement pump, a hydraulic circuit connected to the pump, a downstream side sensor for detecting a state quantity of hydraulic liquid flowing on the downstream side of the hydraulic circuit, and an abnormality diagnosis device for determining an abnormality of the hydraulic circuit on the basis of a first state quantity of the hydraulic liquid discharged from the pump, and a second state quantity of the hydraulic liquid detected by the downstream side sensor.SELECTED DRAWING: Figure 1
【課題】液圧回路の異常を判断することができる異常診断機能付き液圧回路システムを提供する。【解決手段】異常診断機能付き液圧回路システムは、少なくとも1つの容積形のポンプと、ポンプに繋がる液圧回路と、液圧回路の下流側を流れる作動液の状態量を検出する下流側センサと、ポンプから吐出される作動液の第1状態量と、下流側センサで検出される作動液の第2状態量とに基づいて液圧回路の異常を判断する異常診断装置と、を備える異常診断機能付き液圧回路システム。【選択図】 図1
HYDRAULIC CIRCUIT SYSTEM WITH ABNORMALITY DIAGNOSIS FUNCTION, AND STEERING DEVICE COMPRISING THE SAME
異常診断機能付き液圧回路システム、及びそれを備える操舵装置
06.12.2023
Patent
Elektronische Ressource
Japanisch
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