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Dynamically disconnectable battery system for motor vehicle and method for operating dynamically disconnectable battery system

A battery system and motor vehicle technology, applied in battery/battery traction, battery disconnect circuit, battery circuit device, etc., can solve problems such as heat generation and short circuit, and achieve the effect of saving time

Active Publication Date: 2019-09-24
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of a collision, this battery cell may pose some potential risks, such as short circuit due to deformation, rapid heating, etc.

Method used

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  • Dynamically disconnectable battery system for motor vehicle and method for operating dynamically disconnectable battery system
  • Dynamically disconnectable battery system for motor vehicle and method for operating dynamically disconnectable battery system

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Embodiment Construction

[0027] exist figure 1 Motor vehicle 10 is shown in a highly schematic illustration in FIG. Motor vehicle 10 includes a battery system 12 that can be dynamically disconnected. The battery system 12 includes a plurality of battery cells 14 that are electrically connected to one another. Furthermore, the battery system 12 includes a control device 16 for controlling the corresponding battery cells 14 . The battery cells 14 may be Li-ion cells, for example, but other cell technologies are also possible.

[0028] The interconnection of the battery cells 14 generally results in a high-voltage battery for the motor vehicle 10 . The battery system 12 can supply electrical energy to a power electronics system 18 which in turn serves to drive an electric machine 20 for driving the motor vehicle 10 . Furthermore, control device 16 of battery system 12 is coupled to at least one sensor 22 of motor vehicle 10 . The sensor 22 may be, for example, a crash sensor or, for example, an airb...

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PUM

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Abstract

A dynamically disconnectable battery system (12) for a motor vehicle (10) provided by the invention includes a plurality of battery cells (14) having a respective battery cell housing (24) with electrical connections (26, 28) by which the battery cells (14) are electrically interconnected. In the battery cell housings (24) there is arranged a respective cell branch (30) connecting the connections to a galvanic cell. Each cell branch (30) includes a switching element (36) for opening and closing the cell branch (30); the battery system includes a control device, which is configured to actuate all the switching elements (36) of the cell branches (30) for the opening of the switching elements (36) when the control device (16) has received a danger signal from at least one sensor (22).

Description

technical field [0001] The invention relates to a dynamically disconnectable battery system for a motor vehicle of the type specified in the preamble of claim 1 . The invention also relates to a motor vehicle having such a battery system and a method for operating a dynamically disconnectable battery system. Background technique [0002] In particular due to the increasing electrification of motor vehicles, batteries, mainly high-voltage batteries, are increasingly being used in electrically driven motor vehicles. Such a battery system or battery comprises, for example, a plurality of lithium-ion cells connected to one another. In the event of a crash, such battery cells may pose certain potential risks, such as short circuits due to deformation, rapid heating, etc. Various mechanisms are already known from the prior art to minimize the risk originating from the battery, especially in the event of a crash or in other critical situations. [0003] Document DE 10 2007 017 0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/50B60L3/04H02H7/18H01M10/48H01M50/204H01M50/574
CPCB60L3/04H02H7/18H01M10/48H01M50/574H01M50/204H01M10/425H01M10/4257H01M2010/4271H01M2220/20H02J7/00H02J7/36H02J7/0032H02J2310/40Y02T10/70Y02E60/10B60R16/033
Inventor M·辛特伯格B·海伦塔尔
Owner AUDI AG
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