Power steering

1. Field of the Invention For an energy-saving type control, a value of a control low rate QP controlled by a flow control valve V is closer to a value of a flow rate required by an output side such as a power cylinder a steering valve or the like, to suppress a driving torque of a pump P. An excita...

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Bibliographic Details
Main Authors Takai, Masashi, Shima, Naoto, Kozuma, Fumihide, Amano, Norimasa, Shimizu, Noboru
Format Patent
LanguageEnglish
Published 13.01.2004
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Summary:1. Field of the Invention For an energy-saving type control, a value of a control low rate QP controlled by a flow control valve V is closer to a value of a flow rate required by an output side such as a power cylinder a steering valve or the like, to suppress a driving torque of a pump P. An excitation current I of a solenoid SOL is specified on the basis of a solenoid current instruction value Ibased on a steering torque and a solenoid current instruction value Idefining a standby flow rate.