Operation management system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9452679
APP PUB NO 20150321565A1
SERIAL NO

14396513

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An operation management system obviates such a situation that a power substation would trip and a supply of power to overhead wires would stop. The operation management system controls operation of electric drive vehicles, each of which is provided with a trolley mode, in which the electric drive vehicle runs by power supplied to the overhead wires, and a diesel mode, in which the electric drive vehicle runs by an output from an engine. A supply margin detection unit detects a current supply margin of power and a running position detecting unit detects a current running position of the electric drive vehicle. A running mode detection unit detects a current running mode of the electric drive vehicle and a running mode determination unit determines a next running mode based on the detection results of the supply margin detection unit, running position detecting unit, and running mode detection unit.

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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
Kikuchi, Akira Tokyo, JP 127 3088
Kobayashi, Hiroyuki Tokyo, JP 792 9078
Saito, Shinjiro Tokyo, JP 34 648
Sato, Takayuki Tsuchiura, JP 237 2041
Yasuda, Tomohiko Tsuchiura, JP 39 413

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