Vehicle Digital Key Detection for Multi-User Profile Selection
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Solution Overview
Problem
Existing vehicle systems lack efficient and convenient methods for managing multiple user profiles and settings across various vehicle functions, particularly when multiple users with different preferences interact with a vehicle.
Innovation Solution
A method and apparatus that utilize Bluetooth Low Energy (BLE) and Ultra-wideband (UWB) communication connections to authenticate and differentiate between multiple key devices, allowing for automatic or user-selectable user profiles based on the number and proximity of key devices, thereby adjusting vehicle settings such as seats, infotainment, and air conditioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle system supports multiple user profiles for different users, then the adaptability and user convenience are improved, but the device complexity and difficulty of managing settings increase
Solution Approach 1:
The system automatically detects key devices and assigns user profiles without requiring manual user intervention. The control apparatus autonomously manages the complexity of multiple user profiles by detecting which key device is present and automatically applying the appropriate profile settings, thereby improving adaptability while hiding system complexity from users.
Solution Approach 2:
User profiles are pre-configured and stored in the vehicle system before actual use. When a key device is detected, the system already has the necessary user-specific settings prepared and can immediately apply them, eliminating the need for real-time configuration decisions and reducing operational complexity.
2Ease of operation
If the vehicle automatically selects user profiles based on key device detection, then the ease of operation is improved, but the reliability of accurate user identification may deteriorate
Solution Approach 1:
The system uses bidirectional communication between the vehicle and key devices to verify identities. The control apparatus receives identification data from key devices and sends confirmation signals, creating a feedback loop that ensures reliable user identification while maintaining automatic operation. This mutual authentication process prevents false profile assignments.
3Adaptability or versatility
If multiple communication connections are maintained for multiple key devices, then the adaptability for multiple users is improved, but the energy consumption increases
Solution Approach 1:
Instead of maintaining continuous communication connections with all key devices, the system periodically checks for the presence of key devices and establishes connections only when needed. The control apparatus detects which key device is currently near the vehicle and activates communication only during relevant operations, thereby supporting multiple users while minimizing energy consumption during idle periods.
Data Source
AI summary
An apparatus for operating a vehicle determines whether there is a communication connection to exactly one key device or to a plurality of key devices, each respectively having a digital key for authenticating the respective key device at the vehicle. On the basis of whether there is a communication connection to exactly one key device or to a plurality of key devices, a user profile is adopted for the operation of the vehicle, or the user of the vehicle is made to select a user profile from a set of different user profiles.