Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
REVOLUTION CONTROL DEVICE FOR CONSTRUCTION MACHINE
PROBLEM TO BE SOLVED: To provide a revolution control device for performing a proper relief cut control irrespective of the change in an engine rpm.SOLUTION: In a hydraulic shovel for driving a variable capacity type hydraulic pump 10 by an engine 11 so that a turning motor 12 is driven by the discharge oil, a pump command flow rate Qo is determined on the basis of the individual controls of a relief cut, positive and PQ, and the minimum by the low order selection is divided by an engine rotation RPM Ne to determine a target pump tilt qtg so that the tilt of the hydraulic pump 10 is controlled to that target pump tilt qtg.SELECTED DRAWING: Figure 1
【課題】エンジン回転数の変化にかかわらず、適正なリリーフカット制御を行う。【解決手段】エンジン１１で可変容量型の油圧ポンプ１０を駆動し、その吐出油によって旋回モータ１２を駆動する油圧ショベルにおいて、リリーフカット、ポジティブ、ＰＱの各制御に基づいてポンプ指令流量Ｑｏを求め、そのうちの低位選択による最小値をエンジン回転数Ｎｅで除して目標ポンプ傾転ｑｔｇを求め、油圧ポンプ１０の傾転をこの目標ポンプ傾転ｑｔｇに向けて制御するようにした。【選択図】図１
REVOLUTION CONTROL DEVICE FOR CONSTRUCTION MACHINE
PROBLEM TO BE SOLVED: To provide a revolution control device for performing a proper relief cut control irrespective of the change in an engine rpm.SOLUTION: In a hydraulic shovel for driving a variable capacity type hydraulic pump 10 by an engine 11 so that a turning motor 12 is driven by the discharge oil, a pump command flow rate Qo is determined on the basis of the individual controls of a relief cut, positive and PQ, and the minimum by the low order selection is divided by an engine rotation RPM Ne to determine a target pump tilt qtg so that the tilt of the hydraulic pump 10 is controlled to that target pump tilt qtg.SELECTED DRAWING: Figure 1
【課題】エンジン回転数の変化にかかわらず、適正なリリーフカット制御を行う。【解決手段】エンジン１１で可変容量型の油圧ポンプ１０を駆動し、その吐出油によって旋回モータ１２を駆動する油圧ショベルにおいて、リリーフカット、ポジティブ、ＰＱの各制御に基づいてポンプ指令流量Ｑｏを求め、そのうちの低位選択による最小値をエンジン回転数Ｎｅで除して目標ポンプ傾転ｑｔｇを求め、油圧ポンプ１０の傾転をこの目標ポンプ傾転ｑｔｇに向けて制御するようにした。【選択図】図１
REVOLUTION CONTROL DEVICE FOR CONSTRUCTION MACHINE
建設機械の旋回制御装置
UEDA KOJI (Autor:in) / IZUKA TAKAAKI (Autor:in)
07.03.2016
Patent
Elektronische Ressource
Japanisch
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