Magnetic Rotary Dial Attachment for Detachable Vehicle Switches
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Solution Overview
Problem
Current vehicle systems face challenges in providing a secure and accessible method for drivers to easily operate various functions, especially in autonomous driving modes, where traditional input devices may not ensure stable attachment and easy detachment of control modules.
Innovation Solution
A rotary switch device with a rotary dial module equipped with sensors and a base module that utilizes magnetic forces to attach and detach securely, transmitting sensor data when in autonomous driving mode or when detachment conditions are met, allowing for stable attachment and easy detachment based on magnetic force adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic force is increased to ensure stable attachment of the rotary dial module, then attachment reliability is improved, but detachment becomes more difficult
Solution Approach 1:
The magnetic force is made dynamically adjustable rather than fixed. The base module changes the magnetic force magnitude based on operational conditions: maintaining a first magnetic force during normal operation for stable attachment, and switching to a second magnetic force (weaker than the first) when detachment is detected or in autonomous driving mode, enabling easy detachment while maintaining reliable attachment during use.
2Ease of operation
If the rotary dial module is made detachable for easy removal, then ease of operation is improved, but attachment stability deteriorates
Solution Approach 1:
The magnetic attachment force is dynamically adjusted based on operational mode. During manual driving, the magnetic force remains strong for stable attachment. During autonomous driving or when detachment is detected, the magnetic force is reduced to enable easy removal, thus achieving both stability during use and ease of detachment when needed.
3Measurement precision
If sensors are activated continuously to detect detachment conditions, then detection precision is improved, but energy consumption increases
Solution Approach 1:
The sensors are not continuously activated but are periodically or conditionally activated based on operational mode. The controller activates sensors to detect detachment conditions specifically when needed (e.g., during autonomous driving mode or when detachment is suspected), rather than maintaining continuous sensor operation, thus reducing energy consumption while maintaining detection precision when required.
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
Ensures secure attachment and easy detachment of the rotary dial module, enhancing operability and accessibility in autonomous driving environments by maintaining magnetic forces above a threshold unless detachment conditions are met, preventing unintentional removal and facilitating seamless operation of vehicle functions.
Implementation Method 1
a base module that generates a magnetic force greater than or equal to a threshold value to enable the rotary dial module to be attached to the base module
Implementation Method 2
a rotary dial module including a plurality of sensors and a material configured to react to a magnetic force
Data Source
AI summary
A rotary switch device for a vehicle includes a rotary dial module including a plurality of sensors, a material configured to react to a magnetic force, and a base module that generates a magnetic force greater than or equal to a threshold value to enable the rotary dial module to be attached to the base module and transmits detection results from the plurality of sensors included in the rotary dial module to an electronic device inside the vehicle when the rotary dial module is attached to the base module.