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.:
Date of Patent:
Feb. 21, 2017
Filed:
Nov. 27, 2013
Keiji Kaita, Miyoshi, JP;
Yuji Nishi, Nagoya, JP;
Yukinari Tanabe, Nagoya, JP;
Hiromasa Tanaka, Okazaki, JP;
Motoi Ito, Nagoya, JP;
Keiji Kaita, Miyoshi, JP;
Yuji Nishi, Nagoya, JP;
Yukinari Tanabe, Nagoya, JP;
Hiromasa Tanaka, Okazaki, JP;
Motoi Ito, Nagoya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
An electrical storage system includes: an electrical storage device () including serially connected electrical storage blocks; a relay (SMR-B, SMR-G) switching a connection state between the electrical storage device and a load; a controller () controlling 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 overcharged or overdischarged by comparing a voltage value of each electrical storage block with a threshold; a latch circuit () retaining the alarm signal; and a transistor () causing the relay to switch from an on state to an off state upon reception of a latch circuit output signal. The controller determines an energization state of the electrical storage device after executing control for causing the alarm circuit to output the alarm signal by changing the voltage value or the threshold.