Device and method for the early detection of an overload and / or for adaptive line protection of at least one electrical line

The adaptive line protection system addresses the limitations of electronic fuses by calculating energy reserves and time intervals to prevent overloads, offering enhanced protection through dynamic monitoring and rapid shutdown.

DE102024135291A1Pending Publication Date: 2026-05-28FEP FAHRZEUGELEKTRIK PIRNA GMBH
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Patent Information

Application Number
DE102024135291
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing electronic fuse systems for protecting electrical lines lack the ability to adaptively monitor energy input and account for ambient temperature and historical energy dissipation, leading to inadequate protection against long-term overloads.

Method used

An adaptive line protection system that calculates a maximum permissible energy reserve and time interval for electrical lines based on current and voltage history, using sensors and a control unit to proactively issue warnings or interrupt current flow when thresholds are exceeded, incorporating algorithms to consider energy dissipation and temperature effects.

Benefits of technology

Provides proactive early warning and rapid shutdown to prevent electrical line overloads, enhancing protection beyond traditional adiabatic approximations by dynamically adjusting to energy input and temperature changes.

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Abstract

The invention relates to a device and a method for the early detection of an overload and / or for adaptive line protection of at least one electrical line (10), wherein the at least one electrical line (10) is arranged in an electrically conductive manner between a power source (11) and at least one electrical load (2, 2'), wherein an electronic overcurrent protection device (4) is provided for interrupting and / or reducing an electrical current flow through the at least one electrical line (10), which comprises the steps: a. Detecting and / or determining at least one electric current (I i ) and / or an electrical voltage (U i ) in at least one line (10) by means of a sensor (3); b. Determining an energy reserve (E i,res) the at least one electrical conductor (10) in a respective corresponding calculation step (i) based on the recorded and / or determined electric current (I i ) and / or the detected and / or determined electrical voltage (U i ) by means of a control unit (5) for controlling and / or regulating the at least one electrical consumer (2, 2') and / or the electronic overcurrent protection device (4).
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Citation Information

Patent Citations

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