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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9941712 B1

PDFFull Text
Date of Patent:
Apr. 10, 2018

Filed:

Nov. 28, 2013

Electrical storage system

Applicants:

Keiji Kaita, Miyoshi, JP;

Yuji Nishi, Nagoya, JP;

Yukinari Tanabe, Nagoya, JP;

Hiromasa Tanaka, Okazaki, JP;

Motoi Ito, Nagoya, JP;

Inventors:

Keiji Kaita, Miyoshi, JP;

Yuji Nishi, Nagoya, JP;

Yukinari Tanabe, Nagoya, JP;

Hiromasa Tanaka, Okazaki, JP;

Motoi Ito, Nagoya, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Alexis Pacheco

Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02H 7/18 (2006.01); B60L 11/18 (2006.01); B60L 3/00 (2006.01); B60L 3/04 (2006.01); B60L 3/12 (2006.01); B60L 7/14 (2006.01); B60K 28/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0021 (2013.01); B60L 3/0046 (2013.01); B60L 3/0053 (2013.01); B60L 3/04 (2013.01); B60L 3/12 (2013.01); B60L 7/14 (2013.01); B60L 11/1803 (2013.01); B60L 11/1859 (2013.01); B60L 11/1861 (2013.01); B60L 11/1864 (2013.01); B60L 11/1887 (2013.01); H02H 7/18 (2013.01); H02J 7/0031 (2013.01); B60K 2028/006 (2013.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2250/10 (2013.01); B60L 2270/20 (2013.01); H02J 7/0016 (2013.01); H02J 2007/0037 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7055 (2013.01); Y02T 10/7061 (2013.01); Y02T 90/34 (2013.01);
Abstract

An electrical storage system includes a relay switching between an on state where an electrical storage device () is connected to a load and an off state where connection of the electrical storage device with the load is interrupted; a controller controlling an on-off state of the relay; and a current interruption circuit () interrupting energization of the electrical storage device. The current interruption circuit includes an alarm circuit () outputting an alarm signal indicating that any one electrical storage block is in an overcharged state by comparing a voltage value of each electrical storage block with a threshold; a latch circuit () retaining the alarm signal; a transistor () causing the relay to switch from the on state to the off state upon reception of an output signal of the latch circuit; and a power supply circuit () generating electric power for operating the latch circuit using electric power of the electrical storage device.

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