Smart Fuse Identification and Sensing Against Misuse

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Solution Overview

Problem

Fuses in vehicles are misused by replacing them with incorrect sizes or non-standard components, leading to thermal events and electrical failures.

Innovation Solution

Incorporating identification components, electrical sensors, and temperature sensors in fuses to communicate with a receiver and processing unit, which determines whether the fuse is undersized, oversized, or non-standard, and triggers warnings or power cuts to prevent misuse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If fuses are replaced by wrong fuse size or type, or by non-fuse components, then ease of operation is improved (easy replacement), but reliability deteriorates (thermal events and electrical failures)

Engineering Contradiction:
Improveease of fuse replacementVSAvoidreliability of electrical system
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary verification by reading the identification component of the fuse before allowing operation. The processing unit checks whether the fuse specifications match the required parameters, and only authorizes operation after successful verification. This prevents misuse before it can cause harm.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides immediate feedback through visual indicators (LED lights) and audio signals (buzzer) when a fuse is incorrectly installed. The receiver unit communicates the verification result to the user, allowing corrective action before thermal events or electrical failures occur.

Inventive Principle:
Principle #23Feedback

2Reliability

If identification components and sensors are added to fuses, then reliability is improved (misuse detection), but device complexity increases

Engineering Contradiction:
Improvereliability of fuse systemVSAvoidcomplexity of fuse structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The identification component is integrated into the fuse itself, while the complex processing and verification logic is extracted into a separate receiver unit and control unit. This separation allows the fuse to remain simple while the verification system handles the complexity of misuse detection.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The receiver unit serves multiple functions: it reads identification information from the fuse, verifies specifications, provides visual and audio feedback, and controls power supply. This multi-functionality reduces the need for separate components for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Prevents misuse of fuses by detecting incorrect sizes or non-standard components, thereby avoiding thermal events and electrical failures.

Implementation Method 1

the identification component is a RFID chip

Methodology Applied
Scientific EffectRFID (Radio Frequency Identification): Electromagnetic Induction

Implementation Method 2

a temperature sensor, the temperature sensor communicating to the receiver a temperature of the fuse

Methodology Applied
Scientific EffectTemperature sensing: Thermocouple

Implementation Method 3

an electrical sensor, the electrical sensor comprising a current sensor and a voltage sensor, the electrical sensor communicating to the receiver a measure of an intensity and/or of a voltage of a current flowing in the fuse

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 4

an electrical sensor, the electrical sensor comprising a current sensor and a voltage sensor, the electrical sensor communicating to the receiver a measure of an intensity and/or of a voltage of a current flowing in the fuse

Methodology Applied
Scientific EffectVoltage measurement: Electric Field

Data Source

PatentEP4654242A1Fuse and method to prevent misuse of the same
Publication Date: 2025.11.26 VOLVO TRUCK CORP
  • EP4654242A1 patent drawingFigure 1~2
  • EP4654242A1 patent drawingFigure 3
  • EP4654242A1 patent drawing

AI summary

A fuse (F1, F2, F3, ..., FN), comprising at least one of : - an identification component (IC), the identification component (IC) communicating to a receiver (R) an identification information concerning the fuse (F1, F2, F3, ..., FN); - an electrical sensor (ES), the electrical sensor (ES) communicating to the receiver (R) a measure of an intensity or of a voltage of a current flowing in the fuse (F1, F2, F3, ..., FN); - a temperature sensor (TS), the temperature sensor (TS) communicating to the receiver a temperature of the fuse.