Hydraulic excavator

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12264451
APP PUB NO 20230091185A1
SERIAL NO

17801809

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Importance

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Abstract

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A hydraulic excavator includes a traveling body, a slewing body, a working front having a boom, an arm, and a bucket, an operation amount detector, a posture detector, a load detector, a drive controller, and a drive unit. The drive controller calculates a target operation speed of the actuator based on the operation amount, the posture of the working front, and the target surface distance so that the bucket excavates along the construction target surface, and determines soil hardness of a place to be excavated based on a result detected by the load detector, corrects the target operation speed based on the soil hardness, and generates a motion command value. The drive controller determines a target jack-up speed when the hydraulic excavator jacks up based on the target surface distance, and corrects the target operation speed based on the determined target jack-up speed.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTDTAITO-KU TOKYO 110-0015

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakano, Hisami Ibaraki, JP 20 57
Suzuki, Yusuke Ibaraki, JP 359 2566
Tanaka, Hiroaki Ibaraki, JP 532 5487

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