Vehicle Digital Key Prioritization for Multi-User Remote Control
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Solution Overview
Problem
Existing vehicle control systems lack efficiency and convenience when multiple users need to remotely control various vehicle functions, such as seat adjustments, door unlocking, and air conditioning, especially in determining and prioritizing communication connections between vehicles and multiple key devices.
Innovation Solution
The system determines and authenticates communication connections between a vehicle and one or more key devices using Bluetooth Low Energy (BLE) and Ultra-wideband (UWB) connections, allowing for the remote control of vehicle functions based on the number and priority of connected devices, adjusting operations accordingly to enhance user comfort and privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system supports multiple key devices for remote control, then user convenience and accessibility are improved, but determining communication connections and prioritizing devices becomes more complex
Solution Approach 1:
The system changes the parameter of communication connection strength by utilizing different wireless technologies with distinct characteristics (BLE for initial connection, UWB for precise positioning and authentication). This parameter differentiation enables the system to automatically prioritize devices based on their connection quality and type, resolving the complexity of managing multiple key devices.
Solution Approach 2:
The patent replaces manual device prioritization and connection management with an automated electronic system that uses signal strength measurement, digital key verification, and priority flags to automatically determine which key device should control vehicle functions. This substitution eliminates the need for manual intervention in connection management.
2Ease of operation
If the system establishes authenticated communication connections with multiple key devices, then remote control functionality is improved, but communication security and privacy protection become more challenging
Solution Approach 1:
The system segments the authentication process into distinct stages: initial connection establishment via BLE, digital key verification, and final authenticated communication setup. Each stage has its own security checks and authentication requirements. This segmentation ensures that even if one stage is compromised, the overall security remains intact while enabling multiple devices to be authenticated separately.
Solution Approach 2:
The vehicle's control system acts as an intermediary that manages all authenticated communication connections. It maintains a priority list of key devices, verifies digital keys, and controls which device can actually execute commands. This intermediary role ensures secure communication by centralizing authentication and authorization management.
3Ease of operation
If the system automatically adjusts vehicle functions based on multiple connected devices, then user comfort is improved, but determining device priority and managing operations becomes more complex
Solution Approach 1:
The system performs preliminary actions by establishing a priority list of key devices before actual vehicle control operations begin. During the authentication phase, devices are ranked based on their connection characteristics and user preferences. This preliminary prioritization simplifies subsequent automatic function adjustments, as the system already knows which device should take precedence without needing to make complex decisions during operation.
Data Source
AI summary
An apparatus for operating a vehicle is described. In one form, an apparatus is configured to determine whether there is a communication connection to exactly one key device or to a plurality of key devices, wherein a key device has a digital key configured to authenticate the respective key device at the vehicle. The apparatus is further configured to operate at least one function of the vehicle on the basis of whether there is a communication connection to exactly one key device or to a plurality of key devices.