CONTROL SYSTEM, WORK MACHINE, AND CONTROL METHOD

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United States of America Patent

SERIAL NO

15506777

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A control system includes: first and second hydraulic pumps; an opening/closing device provided in a passage connecting the first and second hydraulic pumps and configured to open and close the passage; a control device controlling the opening/closing device to switch between connected and unconnected states of the first and second hydraulic pumps; a first hydraulic cylinder to which hydraulic fluid from the first hydraulic pump is supplied in the unconnected state; and a second hydraulic cylinder to which hydraulic fluid from the second hydraulic pump is supplied in the unconnected state. The control device controls the opening/closing device to be in the connected state when distributed flow rates of the hydraulic cylinders are a predetermined supply flow rate or lower and a difference between a pressure in a rod-side space and a pressure in a cap-side space of the hydraulic cylinder is a defined value or smaller.

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Patent Owner(s)

Patent OwnerAddress
KOMATSU LTD2-3-6 AKASAKA MINATO-KU TOKYO 1078414 ?1078414

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiyama, Teruo Kokubunji-shi, JP 43 448
Kamoshita, Yuta Hiratsuka-shi, JP 5 0
Kawaguchi, Tadashi Hiratsuka-shi, JP 57 410
Oshima, Kenji Tokyo, JP 71 398

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