Power storage system and power source system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9680303
APP PUB NO 20140117756A1
SERIAL NO

14062555

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A power storage system is provided with charge switches, discharge switches, a bidirectional DC/DC converter and a power storage system controller connecting all the battery packs to an external circuit to achieve parallel charge and discharge, and the power storage system starts the charge by setting a rated charge current value per one battery pack to Iset and setting the rated charge current value Iset as an initial value of a charge current command value Iref(1), thereafter monitor the charge current of each of the battery packs after elapse of a predetermined time so as to subtract its maximum value Ibmax(1) from the charge current command value Iref(1), and add the rated charge current value Iset to result of subtraction Ierr (Iref(1)−Ibmax(1)) so as to set as a new charge current command value Iref(2) and carry out pre-charge in such a manner as to carry on the charge.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING LTD2-3-3 MINATOMIRAI NISHI-KU YOKOHAMA-SHI KANAGAWA 220-6122

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamaogi, Masahiro Yokohama, JP 16 384
Katsuyama, Yusuke Yokohama, JP 14 113
Nagafuchi, Susumu Yokohama, JP 2 18
Takahashi, Fumikazu Yokohama, JP 42 486
Takahashi, Yoshihide Yokohama, JP 36 752
Taniguchi, Kimiaki Yokohama, JP 18 273
Uchida, Akinori Yokohama, JP 3 28

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 13, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 13, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00