Battery control device

The battery control device addresses limitations in versatility and cost by using a flexible circuit board with multiple temperature detection elements and cutouts, optimizing temperature measurement and installation across diverse vehicle models and battery modules.

JP2026031130APending Publication Date: 2026-02-24ASTEMO LTD
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Patent Information

Application Number
JP2024134469
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing battery control devices are limited in versatility and cost-effective application across various vehicle models and battery modules due to dedicated configurations and circuit board shapes, necessitating redesign when temperature detection positions change.

Method used

A battery control device with a circuit board that mounts multiple temperature detection elements and allows flexible placement of these elements, including cutouts and notches, to optimize temperature measurement and reduce costs by accommodating different vehicle models and battery module shapes.

Benefits of technology

The solution enhances versatility and reduces costs by enabling accurate temperature measurement and installation flexibility, supporting multiple vehicle models and battery module configurations.

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Abstract

To provide a battery control device capable of improving versatility and reducing cost.SOLUTION: In an in-vehicle battery system in which a plurality of lithium batteries are connected in series, a battery control device mounted inside a battery module that holds a plurality of unit cells includes a temperature detection element that detects a temperature inside the battery module or in the vicinity of the unit cell, and a circuit board on which a circuit that performs arithmetic processing on a temperature detection signal received from the temperature detection element is mounted, and the circuit board has the plurality of temperature detection elements mounted thereon.SELECTED DRAWING: Figure 3
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Citation Information

Patent Citations

  • Battery pack

    JP2004179085A