Kayaba Industry Company, Ltd.

Fumihide Kozuma

Masashi Takai

Noboru Shimizu

Naoto Shima

Norimasa Amano

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 I based on a steering torque and a solenoid current instruction value I defining a standby flow rate.

Power steering

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 I based on a steering torque and a solenoid current instruction value I defining a standby flow rate.

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Kanagawa, Japan

Fumihide Kozuma