Regenerative Braking System, and Electrically Driven Work Vehicle Using the Same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20230261591A1
SERIAL NO

18015236

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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When regeneration operation is being performed, electric power on a main-machine side is supplied to an auxiliary-machine side, a voltage on the auxiliary-machine side is controlled to become a first voltage value predetermined on the basis of operating voltage specifications of an auxiliary apparatus, a generator on the auxiliary-machine side is deactivated to stop supply of electric power to the auxiliary-machine side, and electric power on the auxiliary-machine side is supplied to a power storage apparatus. When the regeneration operation is ended, the supply of the electric power from the main-machine side to the auxiliary-machine side is stopped, the generator on the auxiliary-machine side is activated, the generator on the auxiliary-machine side is controlled such that a voltage on the auxiliary-machine side becomes the first voltage value, electric power of the power storage apparatus is supplied to the auxiliary-machine side, and the voltage on the auxiliary-machine side is controlled to become a second voltage value higher than the first voltage value. This enables reduction of fluctuations of a voltage supplied to auxiliary machines at a time of switching of regeneration operation by travel motors.

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Patent Owner(s)

Patent OwnerAddress
HITACHI CONSTRUCTION MACHINERY CO LTD5-1 KORAKU 2-CHOME BUNKYO-KU TOKYO 112-0004

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
FUKUDA, Naoki Tsuchiura, JP 41 625
KADOTA, Mitsuhiro Tokyo, JP 10 29
KITAGUCHI, Atsushi Tsuchiura, JP 14 42
KUNITOMO, Yuuichi Tsuchiura, JP 6 32
TANAKA, Takaaki Tsuchiura, JP 185 1739

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