BATTERY SYSTEM

• US 20160028257A1
• Filed: 01/22/2014
• Published: 01/28/2016
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Envision AESC Energy Devices Ltd.
• Original Assignee: NEC Energy Devices, Ltd. (Envision Group /TX/)
• Inventors: HASHIMOTO, Yasushi
• Granted Patent: US 9,847,657 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01R 19/16542 for batteries charge condition monitoring in G01R31/36
• CPC Class Codes: G01R 31/3835 involving only voltage measurements
• CPC Class Codes: G01R 31/396 Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/482 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: H02J 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/0049 Detection of fully charged condition
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

This battery system includes: a plurality of batteries; a first monitoring unit that receives as input the output of the batteries, compares the output with a prescribed threshold value, and supplies a signal indicating the result; and a second monitoring unit that detects the voltage value of the batteries and supplies a signal indicating the detected voltage value. The battery system is provided with: a first operation mode during which the first monitoring unit and the second monitoring unit are halted; a second operation mode during which the first monitoring unit operates and the second monitoring unit is halted; and a third operation mode during which the first monitoring unit and the second monitoring unit operate.

Claims

1. A battery system comprising:

a plurality of batteries;

a first monitor unit that receives as input the outputs of said batteries, compares said outputs with a predetermined threshold value, and supplies a signal indicating the result; and

a second monitor that detects the voltage values of said batteries and supplies a signal indicating the detected voltage values;

wherein said battery system is provided with;

a first operating mode in which said first monitor unit and said second monitor unit are halted, a second operating mode in which said first monitor unit operates and said second monitor unit is halted, and a third operating mode in which said first monitor unit and said second monitor unit operate.

2. The battery system as set forth in claim 1, further comprising:

a charge/discharge switch that is provided on wiring that connects said batteries and an object that is to be connected to said battery system and that turns ON or OFF according to at least one of a signal supplied from said first monitor unit and a signal supplied from said second monitor unit.