System and method

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By using ultra-wideband communication unit and UWB signals in the battery pack to detect mechanical deformation of the battery pack, the problem of difficulty in detecting mechanical deformation without interruption in the prior art is solved, and the high power density and low failure rate of the battery pack are achieved.

CN119705220APending Publication Date: 2025-03-28NXP BV

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Patent Information

Application Number: CN202411151501.X
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Priority Date: 2023-09-27
Filing Date: 2024-08-21
Publication Date: 2025-03-28

Application Information

Patent Timeline

27 Sep 2023

Priority

21 Aug 2024

Application

CN202411151501.X

28 Mar 2025

Publication

CN119705220A

IPC: B60L58/18; B60L58/24; B60L58/22; B60R16/023

CPC: H04L25/0212; H01M10/482; H01M6/5044; H04B1/71632; H04B17/364; G01R31/371; G01R31/396; G01B15/06

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Application Domain

Electrical testing Secondary cells

Technology Topics

Ultra-wideband Electrical battery

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AI Technical Summary

Technical Problem

It is difficult for existing battery packs to detect mechanical deformation of the battery pack without interruption, resulting in difficult optimization of the power density and failure rate of the battery pack.

Method used

By introducing an ultra-wideband communication unit (UWB unit) into the battery pack, the channel impulse response (CIR) of the battery pack is determined using an ultra-wideband radio signal (UWB signal), thereby detecting mechanical deformation of the battery pack.

Benefits of technology

It realizes the detection of mechanical deformation of the battery pack without the need for integrated sensors, which improves the power density of the battery pack and reduces the failure rate, while avoiding the increase in space and cost caused by using the sensor.

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Abstract

The present invention relates to a system and method for determining a mechanical deformation of a battery pack based on an influence on an ultra wide band (UWB) signal transmitted between two UWB units of the system, where one of the UWB units is part of a control module of the system, where the control module further comprises a control unit, where the UWB units are connected to the control unit. The control unit is configured to be connected to battery cells of a battery pack to control and / or monitor the battery cells.

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