Bluetooth Keyless Vehicle Access Using Passive Mobile Presence

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Solution Overview

Problem

Current remote keyless systems that use mobile devices require user interaction, which is inconvenient and increases security risks.

Innovation Solution

A method that allows a mobile device to operate as a passive keyless remote by establishing a wireless connection with a keyless vehicle system, enabling vehicle operation based on the device's presence without requiring user interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mobile device is used as a keyless remote with user interaction required, then the system can operate without dedicated hardware, but user convenience deteriorates and security risks increase

Engineering Contradiction:
Improveuse of mobile deviceVSAvoiduser interaction requirement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mobile device automatically establishes wireless connections with the vehicle system without requiring user interaction. The system self-authenticates and self-activates keyless functions based on proximity detection, eliminating the need for manual app activation or button presses.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The mobile device and vehicle system perform preliminary pairing and authentication during device setup. This pre-established trust relationship enables automatic connection and operation without requiring user interaction during actual vehicle access events.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If a mobile device is used as a keyless remote with user interaction, then generic devices can replace dedicated hardware, but security vulnerabilities increase due to device accessibility

Engineering Contradiction:
Improvegeneric mobile device compatibilityVSAvoidsecurity risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The vehicle system acts as an intermediary by implementing a secure wireless connection protocol that authenticates the mobile device before granting access. This mediator layer verifies device identity and establishes encrypted communication channels, preventing unauthorized access even when the mobile device is physically accessible to attackers.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary authentication and pairing during device setup, establishing cryptographic credentials before the mobile device is ever used for vehicle access. This pre-security measure ensures that even if the device is compromised later, unauthorized vehicles cannot be accessed without valid authentication credentials.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If traditional keyless remotes are used, then dedicated hardware provides secure operation, but replacement and repair become difficult and costly

Engineering Contradiction:
Improvesecure operationVSAvoidreplacement difficulty
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The system uses universal mobile devices that users already possess, eliminating the need for proprietary keyless remotes. The vehicle system is designed to work with standard mobile devices through widely adopted wireless protocols, making replacement and repair trivial since any compatible mobile device can serve as the keyless remote.

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

Solution Approach 2:

The mobile device serves as a digital copy or equivalent of the traditional physical keyless remote, using software-based authentication instead of hardware-based systems. This virtualization allows easy replacement and reconfiguration without physical manufacturing constraints.

Inventive Principle:
Principle #26Copying

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 convenient and secure operation of vehicles using mobile devices, eliminating the need for user interaction and reducing security vulnerabilities.

Implementation Method 1

a wireless connection module in the keyless vehicle system to establish a wireless connection with the mobile device

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS20250136047A1Systems and methods for keyless operation
Publication Date: 2025.05.01 IRDETO TECH BEIJING CO LTD
  • US20250136047A1 patent drawing
  • US20250136047A1 patent drawing
  • US20250136047A1 patent drawing

AI summary

There is provided systems and methods for operating a keyless vehicle system of a vehicle. One such method comprises, receiving, at a Bluetooth module of the keyless vehicle system a connection request from a mobile device, wherein the Bluetooth module of the keyless vehicle system is bonded as a human interface device (HID) to the mobile device. In response to the mobile device being verified by the Bluetooth module, a Bluetooth connection between the mobile device and the Bluetooth module is established. In response to the vehicle detecting physical interaction, the presence of the mobile device determined. Operation of the keyless vehicle system is allowed based on the presence of the mobile device.