Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Battery fault tolerant architecture for cell failure modes parallel bypass circuit

一种蓄电池、蓄电池模块的技术，应用在电路装置、电池并联转换、电池电路装置等方向，能够解决车辆关闭等问题

Active Publication Date: 2012-05-16
GM GLOBAL TECH OPERATIONS LLC
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since battery cells may be electrically coupled in series, failure of one cell in the series may prevent use of the other cells in the series and may result in a vehicle shutdown

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery fault tolerant architecture for cell failure modes parallel bypass circuit
  • Battery fault tolerant architecture for cell failure modes parallel bypass circuit
  • Battery fault tolerant architecture for cell failure modes parallel bypass circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The following illustrations of embodiments of the invention that relate to the removal of bypass circuits for units or modules connected in parallel with other units or modules are merely exemplary in nature and are in no way intended to limit the invention or its application or use.

[0033] figure 1 is a block diagram of a vehicle system 10 including a high-voltage battery 12 . The high voltage battery 12 includes a plurality of battery modules 14, each including a plurality of battery cells electrically coupled in series. In one non-limiting example, battery 12 may include 8 modules 14, where each module 14 may include 12 cells, for a total of 96 cells. The total voltage can be in the range of 350-400 volts. Battery 12 is electrically coupled to a high voltage bus represented by lines 16 and 18 . In this non-limiting design, vehicle system 10 is part of a hybrid vehicle that includes a primary power source 20 (eg, internal combustion engine, fuel cell system, etc....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A by-pass circuit for a battery system that disconnects parallel connected cells or modules from a battery circuit or controls the current through the parallel connected cells or modules. If a cell has failed or is potentially failing in the system, then the by-pass circuit can disconnect the cell or module from other cells or modules electrically coupled in parallel. If a cell or module has a lower capability than another cell or module, then the by-pass circuit can control the current to the cell or module to maximize the performance of the system and prevent the system from creating a walk-home condition.

Description

technical field [0001] The present invention relates generally to controllable bypass circuits for parallel connection of battery modules or cells, and more particularly to control circuits capable of bypassing connected battery cells or modules of a portion of a larger battery system and controlling discharge and charge currents . Background technique [0002] Electric vehicles are becoming increasingly popular. These vehicles include hybrid vehicles (eg, extended-range electric vehicles (EREVs)) and pure electric vehicles (eg, battery electric vehicles (BEVs)) that combine batteries with a primary power source (eg, internal combustion engines, fuel cell systems, etc.). All of these types of electric vehicles employ high voltage batteries comprising multiple battery cells. These batteries may be of different battery types such as lithium ion, nickel metal hydride, lead acid, etc. A typical high voltage battery system for an electric vehicle may include a large number of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0024Y02T10/7011Y02T10/7055B60L11/1855Y02T10/705B60L11/1879Y02T10/7005H02J7/0026B60L58/19B60L50/64Y02T10/70H02J7/0029
Inventor S.J.万斯J.T.格林A.H.罗伊托伊泽尔J.C.门策尔
Owner GM GLOBAL TECH OPERATIONS LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com