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Battery unit

A technology for battery cells, battery modules, applied in electrical components, secondary batteries, circuits, etc., to solve problems such as unsatisfactory

Active Publication Date: 2018-05-25
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ultrasonic sensors are theoretically conceivable as liquid detectors, but tests of this so far have not proven satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 A battery unit 1 is shown with a housing 2 having a housing bottom 3 and four housing walls 4 - 7 . Four battery modules 8 are arranged in the housing 2, each battery module being configured to contain a measurement and control unit 9 with an integrated radio module, the antenna 10 of which is at least partially on or at the bottom 3 of the housing. was channeled a short distance up. Furthermore, the battery unit 1 has a central control unit 11 which likewise has an integrated radio module with an antenna 12 .

[0020] Note here that the measuring and control unit 9 can also be arranged within the battery module 8 and the central controller 11 can also be arranged outside the housing 2 . For the sake of clarity, the interconnection of the battery modules 8 is not shown here. The antenna 10 is now placed on the housing bottom 3 or at a short distance thereon so that it covers as large an area as possible. In this case, the antenna 10 of the upper left batter...

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PUM

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Abstract

The invention relates to a battery unit (1) comprising a housing (2) in which at least two battery modules (8) are arranged, the battery modules (8) having measuring and control units (9) which are connected to at least one central control unit (11), wherein the measuring and control units (9) each have a radio module, wherein the antennas (10) of the radio modules at least partially are arrangedon or at a small distance above the housing bottom (3) of the housing (2), wherein the central control unit (11) likewise has a radio module, wherein at least the central control unit (11) is designedto determine, according to the quality of the received signals of the measuring and control units (9), a liquid entry into the battery unit (1).

Description

technical field [0001] The invention relates to a battery unit, in particular as a high-voltage battery for an electric or hybrid vehicle. Background technique [0002] Such a battery unit usually includes a housing in which a plurality of battery modules are accommodated. The battery module itself has a number of individual cells connected in series and / or in parallel. The battery modules are then likewise connected in series or in parallel. The external contacts of the connected battery modules form the battery poles. It is also known here to assign a measurement and control unit to the battery modules, which measurement and control unit can measure the temperature of the individual cells and perform cell balancing. In this case, the measurement and control unit is connected to a central controller of the battery cells, to which the measured data are transmitted. In this case, the data connection takes place, for example, via a CAN bus. [0003] High-voltage batteries...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/48
CPCH01M10/425H01M10/48H01M10/482Y02E60/10
Inventor R.库贝
Owner VOLKSWAGEN AG