Wheel Nut Loosening Detection Using Electromagnetic Induction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wheel nut loosening detection devices face challenges in real-time detection during vehicle travel due to power consumption issues, making it difficult to detect a loosened wheel nut without using a separate battery and preventing timely warnings.
Innovation Solution
A wheel nut loosening detection device utilizing the electromagnetic induction principle, where a magnet on the wheel nut generates an induced current in a closed circuit when loosened, triggering a warning signal through a current detector and output unit, allowing for real-time detection without relying on vehicle battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a variable resistor is used to detect wheel nut rotation, then the loosening state can be detected, but a battery is required to supply power which cannot cope with continuous electric power consumption
Solution Approach 1:
The detection device generates its own operating energy through electromagnetic induction. The rotating wheel nut with magnet induces current in the closed circuit, and this induced current powers the detection system without requiring external battery power. The system serves itself by converting the mechanical energy of wheel rotation into electrical energy for operation.
Solution Approach 2:
The patent replaces the traditional electrical detection system (variable resistor requiring battery power) with an electromagnetic induction-based system. The mechanical rotation of the wheel nut with magnet generates electrical current through electromagnetic induction, substituting the need for external electrical power sources.
2Use of energy by stationary object
If the detection device operates only after vehicle travel is completed, then battery power consumption is reduced, but real-time detection during vehicle travel becomes impossible
Solution Approach 1:
The detection device generates its own operating energy through electromagnetic induction during wheel rotation. The induced current in the closed circuit powers the detection system in real-time, eliminating the need to wait until after vehicle travel. The system operates continuously during wheel rotation without depleting vehicle battery power.
3Measurement precision
If a separate tool is used to measure fastening torque, then accurate measurement is possible, but the inspection process becomes complex and requires additional facilities
Solution Approach 1:
The patent replaces complex mechanical torque measurement tools with a simplified electromagnetic detection system. By detecting changes in induced current caused by wheel nut rotation, the system provides accurate loosening detection without requiring separate mechanical measurement tools or complex inspection procedures.
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
Enables real-time detection and warning of a loosened wheel nut during vehicle travel, preventing accidents by eliminating the need for a separate battery and ensuring continuous operation.
Implementation Method 1
A wheel nut loosening detection device utilizing the electromagnetic induction principle, where a magnet on the wheel nut generates an induced current in a closed circuit when loosened
Data Source
AI summary
A wheel nut loosening detection device including: a wheel having a wheel nut fastening unit; a hub; a wheel bolt configured to penetrate the wheel and the hub; a wheel nut fastened to the wheel bolt and configured to fix the wheel and the hub; at least one magnet mounted on the wheel nut; and a closed circuit mounted in the wheel nut fastening unit and disposed adjacent to the at least one magnet. The wheel nut loosening detection device further includes a current detector configured to output a corresponding output signal in response to a change in current in the closed circuit, and an output unit configured to output a warning signal in response to the output signal of the current detector.