Motor Vehicle Emblem Sensor System Passive Authentication
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Solution Overview
Problem
Conventional motor vehicle emblems primarily serve as company identifiers and lack advanced functionality, failing to enhance their utility beyond aesthetic and basic operational purposes such as tailgate opening assistance.
Innovation Solution
Integration of a sensor system within the emblem that monitors detection and actuation areas to initiate authentication checks and trigger vehicle functions passively, allowing for enhanced access control and operational facilitation without user intervention, utilizing an optical sensor system with a light module to create invisible detection areas and visible actuation areas for user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sensor system is integrated into the emblem to enable passive keyless entry and authentication checks, then the functionality and convenience of the emblem is improved, but the device complexity increases
Solution Approach 1:
The sensor system (including optical sensor, light module, and control unit) is integrated directly into the emblem structure, combining the aesthetic identifier function with active sensing and authentication functions in a single component, thereby improving versatility without proportionally increasing overall system complexity
Solution Approach 2:
The emblem serves multiple functions: company identification, sensor system housing, authentication initiation, and user interaction interface. This multi-functionality resolves the contradiction by making the emblem adaptable to various operational modes while maintaining a unified device structure
2Ease of operation
If the sensor system continuously monitors the detection area and initiates authentication checks upon user recognition, then the ease of operation is improved, but the energy consumption increases
Solution Approach 1:
The control unit activates the light module and optical sensor in periodic cycles rather than continuous operation. The system monitors for user presence by periodically illuminating the detection area and evaluating reflected light, which reduces energy consumption while maintaining the passive keyless entry functionality
Solution Approach 2:
The system performs preliminary detection in the first detection area to identify potential users before initiating full authentication checks. This preliminary action allows the system to remain in a low-power state until a user is detected, at which point authentication checks are activated
3Reliability
If the detection area is made invisible to users while the actuation area is visible, then the security is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The emblem structure is designed with differentiated optical properties: the first portion (detection area) is opaque to prevent user visibility and maintain security, while the second portion (actuation area) is transparent or translucent to allow user interaction. This local quality differentiation resolves the contradiction by making the detection area invisible while keeping the actuation area visible
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 passive keyless entry and improved user interaction with the vehicle, enhancing security and convenience by allowing functions like door opening and tailgate operation without active user action, while reducing energy consumption through targeted and efficient light usage.
Implementation Method 1
the sensor system having an optical sensor and a light module with which light can be emitted in order to create a detection area, with the sensor being designed to receive light from the detection area
Data Source
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AI summary
The invention relates to an emblem (80) for a motor vehicle (1), comprising an optical sensor system (30) which is suitable for a) monitoring a detection region (21) lying outside of the motor vehicle (1), b) triggering a signal for starting an authentication check between an ID transmitter (13) and the motor vehicle (1) in the event that a user (10) is detected in the detection region (21), c) monitoring an actuation region (22) which lies outside of the motor vehicle (1) and which differs from the detection region (21), and d) providing an operating signal for the motor vehicle (1) in the event that a user (10) is detected in the actuation region (22).