Magnetic Grip Switch Module for Intuitive Attachment and Release
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Solution Overview
Problem
Existing vehicle switch systems lack intuitive and easy methods for attachment and detachment based on user force, which can complicate operations such as locking/unlocking doors, audio, video, navigation, HVAC, seat adjustment, and lighting control.
Innovation Solution
A switch apparatus with a manipulation module and base module utilizing a magnetic mechanism and grip force sensing unit, where the magnetic force between the modules varies based on the user-applied grip force, allowing intuitive attachment and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a magnetic mechanism is used to attach the manipulation module to the base module, then the attachment strength is improved, but the detachment difficulty increases
Solution Approach 1:
The magnetic mechanism transitions from a static strong attachment state to a dynamic state where the magnetic force can be rapidly adjusted or released. The grip force sensing unit detects when a predetermined force is applied, triggering the controller to change the magnetic mechanism's state, enabling easy detachment while maintaining strong attachment during normal use.
Solution Approach 2:
The patent replaces traditional mechanical attachment mechanisms (screws, clips, latches) with a magnetic mechanism controlled by an electromagnet. This allows the attachment strength to be precisely controlled and rapidly changed via electrical signals, solving the contradiction between strong attachment and easy detachment.
2Ease of operation
If a grip force sensing unit is added to detect user force, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The grip force sensing unit replaces complex mechanical force sensing mechanisms with electrical sensors. The sensing unit detects grip force through electrical changes (such as resistance or capacitance changes in conductive layers), providing intuitive operation while keeping the overall structure relatively simple.
Solution Approach 2:
The grip force sensing unit serves multiple functions: it detects grip force magnitude, determines user intent (attachment or detachment), and triggers the appropriate magnetic mechanism response. This multi-functionality reduces the need for separate sensors and control logic, minimizing added complexity.
3Ease of operation
If the magnetic force varies based on grip force magnitude, then the ease of operation is improved, but the control complexity increases
Solution Approach 1:
The system implements feedback control where the grip force sensing unit continuously monitors the force applied by the user, and the controller adjusts the magnetic mechanism's output force in real-time based on this feedback. This creates an intuitive interaction where the magnetic attachment strength automatically responds to user intent, improving ease of operation while using relatively simple feedback logic.
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 easy and intuitive attachment and detachment of the manipulation module from the base module based on grip force, enhancing user convenience and accessibility for vehicle functions.
Implementation Method 1
the magnetic mechanism may generate a magnetic attraction between the base-side magnetic unit and the manipulation-side magnetic unit
Implementation Method 2
the magnetic mechanism may generate a magnetic repulsion between the base-side magnetic unit and the manipulation-side magnetic unit
Data Source
AI summary
A switch apparatus includes a base module including a base case; a manipulation module including a manipulation case, and a grip mounted on an external circumferential surface of the manipulation case; a magnetic mechanism including a base-side magnetic unit provided to the base module, and a manipulation-side magnetic unit provided to the manipulation module; and a grip force sensing unit provided between the manipulation case and the grip, wherein the grip force sensing unit detects whether a grip force applied to the grip is greater than or equal to a predetermined threshold, and the magnetic mechanism is configured to vary a magnetic force generated between the base-side magnetic unit and the manipulation-side magnetic unit in accordance with a magnitude of the grip force detected by the grip force sensing unit.