Hybrid construction machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10329737
APP PUB NO 20180030690A1
SERIAL NO

15552829

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An output command calculating section (40) of an HCU (36) restricts a battery discharge power from an electricity storage device (31) based upon a battery electricity storage rate (SOC) and a current square integrating rate (Risc) of the electricity storage device (31). Thereby, the HCU (36) transfers from a normal mode (NMODE) to a low speed mode (LSMODE) to lower a movement speed of a hydraulic actuator. A monitor display amount calculating section (50) of the HCU (36) calculates a maximum speed reduction rate (DRs) based upon a battery discharge power limit value (Plim0) and an engine output upper limit value (Pemax) from the output command calculating section (40). A monitor device (39) displays a reduction rate of the movement speed of the hydraulic actuator in the low speed mode (LSMODE) based on the maximum speed reduction rate (DRs).

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTDTOKYO 110-0015

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hita, Masafumi Tsuchiura, JP 14 7
Imura, Shinya Toride, JP 80 338
Nishikawa, Shinji Kasumigaura, JP 60 343

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