Vehicle Digital Key Profile Switching via Shared Key Slot IDs

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Solution Overview

Problem

Existing vehicle systems do not allow for seamless linking of profiles to multiple devices, and there is a need for automatic profile switching when a digital key is shared with new devices.

Innovation Solution

A method and apparatus that enable a vehicle to register a device with a shared digital key and automatically link the corresponding profile, allowing profile selection based on matching slot IDs between the shared key and the vehicle's stored digital key.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a profile is linked to only one digital key device, then the system complexity is reduced, but the adaptability and user convenience deteriorate when users need to use multiple devices

Engineering Contradiction:
Improveprofile linking capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a many-to-many mapping relationship between profiles and digital key devices through slot IDs. A single profile can be associated with multiple devices, and each device can access multiple profiles, enabling universal access without increasing fundamental system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces slot IDs as intermediary identifiers that mediate between profiles and digital key devices. This intermediary layer enables automatic profile selection and linking without requiring complex direct associations between profiles and multiple devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If manual profile selection is required on the AVN screen, then the system operates reliably with clear user control, but the ease of operation deteriorates when users need to switch between multiple devices

Engineering Contradiction:
Improveprofile switching convenienceVSAvoidtime for profile selection
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by automatically selecting and linking profiles to digital key devices before the user needs to use them. When a digital key is presented, the corresponding profile is automatically selected based on slot ID matching, eliminating the need for manual selection at the moment of use.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system performs self-service by automatically matching profiles to digital key devices through slot ID comparison. The vehicle controller autonomously determines which profile to activate without requiring user intervention on the AVN screen, thereby saving time and improving ease of operation.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If digital keys are shared with multiple devices, then the adaptability improves, but the difficulty of detecting and measuring the correct profile association increases

Engineering Contradiction:
Improvemulti-device supportVSAvoidprofile key association detection
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent uses slot IDs as changeable parameters that uniquely identify profile-device associations. By comparing slot IDs between the presented digital key and stored profiles, the system can accurately detect and measure which profile corresponds to which device, even when multiple devices are involved.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250115212A1Method for providing a digital key service, a vehicle and a management server for the same
Publication Date: 2025.04.10 HYUNDAI MOTOR CO LTD
  • US20250115212A1 patent drawing
  • US20250115212A1 patent drawing
  • US20250115212A1 patent drawing

AI summary

A method of providing a digital key service, in the vehicle for which the digital key service is provided through the management server for digital keys that issues and manages digital keys and shared keys when a request for issuance of the digital keys and the shared keys is transmitted through a user interface, can include registering a first profile at a user's request, receiving a first digital key including a first slot ID from the management server for digital keys and, linking the first profile to the first slot ID, receiving the shared key, and selecting a profile based on the result of comparing a second slot ID in the shared key and the first slot ID.