Integrated Magnetic Sensing Module for Alignment-Tolerant Installation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Hall sensor systems for car warning lights and welcome pedals face installation challenges due to alignment issues with external magnets, leading to inaccurate sensing and potential misjudgment, especially in low-light conditions.
Innovation Solution
A magnet-type sensing module with a control circuit, magnetic sensing unit, and magnetic element that generates voltage changes based on magnetic field changes, allowing for convenient installation and accurate signal generation, featuring a processing unit, signal generating component, and noise mitigation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external magnet is used with a Hall sensor to sense magnetic field changes, then the sensing function can be achieved, but the alignment during installation becomes difficult and may cause misjudgment
Solution Approach 1:
The patent combines the Hall sensor and the magnet into a single integrated sensing module, eliminating the need for separate external magnet alignment during installation. The integrated design ensures proper positioning of magnetic components relative to the sensor, resolving the alignment difficulty while maintaining reliable magnetic field sensing for door and pedal detection.
2Ease of operation
If the magnet is directly set without precise alignment, then installation becomes simpler, but the magnetic induction value becomes unstable and may cause misjudgment
Solution Approach 1:
The patent incorporates preliminary positioning structures within the integrated sensing module that pre-establish the correct spatial relationship between the magnet and Hall sensor before installation. This preliminary arrangement of magnetic components ensures stable magnetic induction values are achieved automatically during installation, eliminating the need for precise manual alignment while maintaining measurement precision.
3Adaptability or versatility
If the magnet is positioned at a distance from the sensor, then installation tolerance increases, but the magnetic induction value decreases and sensing reliability is affected
Solution Approach 1:
The patent employs a flexible mounting structure with adjustable positioning elements that allow the magnet and sensor to be dynamically positioned within the integrated module. This dynamic adjustment capability enables the system to accommodate various installation scenarios and tolerances while maintaining optimal magnetic field coupling and stable induction values across different installation conditions.
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 effective and accurate generation of output signals for car door and pedal applications, improving installation convenience and reducing misjudgment, while maintaining reliable operation in varying light conditions.
Implementation Method 1
the magnetic sensing unit senses a magnetic change of the magnetic element to generate a first voltage change value
Data Source
AI summary
The present invention provides a magnet-type sensing module, comprising a control circuit and at least one signal generating component, wherein the control circuit is provided with a processing unit, a magnetic sensing unit and a magnetic element. An induced magnetic field of the magnetic sensing unit senses a magnetic change of the magnetic element to generate a first voltage change value or a second voltage change value to the processing unit, and the processing unit respectively generates an output activate voltage or an output turn-off voltage to the signal generating component to generate an output signal or turn off an output signal to solve the problems of inconvenient installation and accurate alignment of the installation location in the prior art, thereby achieving efficacies of convenient installation and effective induction of generating output signals.