Shift Lever Touch Sensor for Vehicle Authentication
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Solution Overview
Problem
Conventional remote controller and security card-based vehicle control systems are inconvenient for users, as they require carrying additional devices and may result in loss of access if the remote controller or security card is lost.
Innovation Solution
A shift lever with a cover layer incorporating touch and pressure sensors that authenticate users based on fingerprint, finger joint lines, palm lines, and touch position, along with a display panel and haptic module, integrated into a vehicle control system to provide secure access and personalized settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a remote controller or security card is used for vehicle access control, then unauthorized access can be prevented, but user convenience deteriorates due to the need to carry additional devices and risk of loss
Solution Approach 1:
The patent combines the vehicle access control function with the shift lever, a component the user must already interact with. The touch sensor is integrated into the cover layer of the shift lever knob, merging authentication and gear shifting operations into a single interaction point, eliminating the need for separate remote controllers or security cards
Solution Approach 2:
The shift lever is given multiple functions: it serves both as the traditional gear shifting mechanism and as an authentication device for vehicle access control. This multi-functionality eliminates the need for dedicated access control devices, improving convenience while maintaining security
2Ease of operation
If a fingerprint recognition system is integrated into the shift lever, then user convenience is improved by eliminating the need to carry additional devices, but device complexity increases due to the addition of touch sensors and authentication circuits
Solution Approach 1:
The touch sensor is implemented as a thin film structure within the cover layer of the shift lever knob. This flexible implementation allows the sensor to be integrated without significantly increasing the size or complexity of the shift lever assembly, maintaining a compact design while adding authentication functionality
Solution Approach 2:
The system uses the user's own finger as the authentication key, eliminating the need for separate authentication devices. The touch sensor leverages the user's natural interaction with the shift lever to capture fingerprint data, turning the authentication process into a self-service operation that requires no additional components from the user
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
Enhances user convenience and security by allowing authentication through the shift lever, preventing unauthorized access and providing personalized vehicle settings based on registered user information.
Implementation Method 1
the touch sensor includes a plurality of sensor pixels which senses a capacitance change corresponding to the touch
Implementation Method 2
the sensor electrode may define a second capacitor with a hand of the user when the touch of the user occurs, and the touch sensor may generate the touch information based on a capacitance change of the second capacitor corresponding to the touch
Data Source
AI summary
A shift lever includes a lever knob, and a cover layer covering the lever knob, where the cover layer includes a touch sensor which generates touch information on a touch of a user, and the touch sensor includes a plurality of sensor pixels which senses a capacitance change corresponding to the touch.