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High-voltage battery for motor vehicle having detection device for detecting damage to the high-voltage battery, method for detecting damage to the high-voltage battery, and motor vehicle

A high-voltage battery and detection equipment technology, applied to the damage of the battery case and the field of motor vehicles, can solve problems such as leaking, high-voltage storage damage, and inaccurate inspection

Active Publication Date: 2020-08-28
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this check is very inaccurate, since the high-pressure accumulator may be damaged due to a critical event and can no longer be used or can only be used to a limited extent, although the maximum permissible limit value of the acceleration has not yet been exceeded
Other damage to the battery housing, e.g. leaks, cannot be detected by using the acceleration sensor
Furthermore, the previously mentioned situation of retractable parking poles cannot be detected from this

Method used

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  • High-voltage battery for motor vehicle having detection device for detecting damage to the high-voltage battery, method for detecting damage to the high-voltage battery, and motor vehicle
  • High-voltage battery for motor vehicle having detection device for detecting damage to the high-voltage battery, method for detecting damage to the high-voltage battery, and motor vehicle
  • High-voltage battery for motor vehicle having detection device for detecting damage to the high-voltage battery, method for detecting damage to the high-voltage battery, and motor vehicle

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Effect test

Embodiment Construction

[0028] In the figures, identical and functionally identical elements are provided with the same reference symbols.

[0029] figure 1 A high-voltage battery 1 for a motor vehicle not shown here is shown. The high-voltage battery 1 can be, for example, a traction battery of an electrically driven motor vehicle. The high-voltage battery 1 has a battery housing 2 , in an interior 3 of which a plurality of battery modules 4 are arranged. High-voltage battery 1 can be arranged, for example, in the chassis region of a motor vehicle. The battery housing 2 , for example the bottom 5 or the side walls 6 of the battery housing 2 , can be damaged in the event of a motor vehicle accident or if the motor vehicle drives over an obstacle. Such damage to the battery case 2 may be deformation and / or leaks.

[0030] In order to detect such damage, the high-voltage battery 1 has a detection device 7 . The detection device 7 is arranged in the interior 3 in the cover 8 of the battery housing ...

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Abstract

The invention relates to a high-voltage battery (1) for a motor vehicle, comprising a battery housing (2) for receiving a plurality of battery modules (4) in an interior space (3) of the battery housing (2), and a detection device (7) for detecting damage to the battery housing (2). The detection device (7) comprises at least one pressure sensor (9) arranged in the interior space (3) of the battery housing (2), which is configured to detect a pressure signal (11, 13) in the interior space (3) of the battery housing (2), and an evaluation unit (10), which is configured to identify the damage tothe battery housing (2) on the basis of the pressure signal (11, 13) detected by the pressure sensor (9). The invention further relates to a method and to a motor vehicle.

Description

technical field [0001] The invention relates to a high-voltage battery for a motor vehicle, the high-voltage battery having a battery housing for accommodating a plurality of battery modules in the interior of the battery housing and a testing device for testing the battery Damage to the casing. The invention also relates to a method for detecting damage to a battery housing of a high-voltage battery and to a motor vehicle with a high-voltage battery. Background technique [0002] At present, the focus is on high-voltage batteries or high-voltage energy stores for electrically propellable motor vehicles, such as electric vehicles or hybrid vehicles. Such motor vehicles usually have, in the powertrain, an electric drive or an electric machine for driving the motor vehicle and a high-voltage battery which supplies the electric drive with electrical energy. Such a high-voltage battery comprises a plurality of battery modules which are arranged in the interior or receiving spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/42H01M10/48G07C5/00B60L50/64
CPCH01M10/425H01M10/48H01M10/486H01M2220/10H01M2220/20G07C5/0808Y02E60/10H01M50/227H01M50/249H01M50/271B60L50/64Y02T10/70H01M10/4228
Inventor J·P·施密特
Owner BAYERISCHE MOTOREN WERKE AG
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