Work Vehicle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20190100899A1
SERIAL NO

16085402

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A wheel loader includes a working device, a lift cylinder 152 which is a hydraulic actuator that drives the working device, a hydraulic pump 220 that supplies hydraulic oil to the lift cylinder 152, a lift cylinder bottom pressure detector 252 that detects a pressure of the lift cylinder 152, a control valve 221 that controls the amount of hydraulic oil to be supplied from the hydraulic pump 220 to the lift cylinder 152, a vehicle acceleration detector 254 that detects a vehicle acceleration in a longitudinal direction, and a control device 240. The control device 240 determines whether the working device has started excavation, or not, based on the lift cylinder bottom pressure detected by the lift cylinder bottom pressure detector 252 and the vehicle acceleration detected by the vehicle acceleration detector 254.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTDBUNKYO-KU TOKYO 112-8563

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ISHIDA, Kazuo Tsuchiura-shi, JP 56 403
ITOU, Noritaka Tsuchiura-shi, JP 8 42
KIMURA, Shota Tokyo, JP 1 0
MORIKI, Hidekazu Tokyo, JP 39 144
OSAKA, Tadashi Tokyo, JP 36 418

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