Mobile Phone Key Fob Security Code Copying
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Solution Overview
Problem
Current electronic key systems for vehicles lack efficient methods for secure keyless control and management of vehicle features, particularly in scenarios where the primary key fob is not present, and there is a need for a system that can programmatically assign primary and secondary driver status and allow keyless access and start functions.
Innovation Solution
A vehicle computing system and mobile device integration that enables the transmission of security codes via short-range wireless communication, allowing a mobile device to function as a key fob, with features like voice command control and the ability to programmatically assign primary and secondary driver status, enabling keyless entry and engine start without a physical key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a physical key fob is used for vehicle access and control, then security and reliability are maintained, but convenience and ease of operation are reduced due to the need to carry and physically handle the key
Solution Approach 1:
The patent replaces the mechanical key fob system with an electronic mobile device system. The mobile device uses wireless communication (Bluetooth, Wi-Fi) and electronic authentication (security codes, encryption) to substitute for the physical key fob's mechanical and radio frequency identification functions, enabling keyless entry and control while maintaining security through digital authentication protocols.
Solution Approach 2:
The patent creates a digital copy of the key fob's functionality within a mobile device. The mobile device stores security codes and authentication data that replicate the key fob's identity verification capabilities, allowing the phone to act as a virtual key fob with equivalent access control functions.
2Ease of operation
If keyless control functions are implemented using mobile devices, then convenience is improved, but device complexity and security vulnerability increase
Solution Approach 1:
The patent leverages the mobile device's existing multi-functionality (wireless communication, processing power, display, input interfaces) to perform key fob functions. Rather than adding specialized hardware, the system uses the phone's universal capabilities for wireless pairing, authentication code display, and control signal transmission, thereby managing complexity through software-based multi-functionality.
3Ease of operation
If security codes are transmitted wirelessly from key fob to mobile device, then ease of setup is improved, but security risk increases due to potential interception
Solution Approach 1:
The patent introduces an intermediary authentication process where security codes are not directly transmitted but rather displayed on the mobile device's screen after wireless pairing is established. The code acts as a mediator that requires user verification, adding a layer of security that prevents automatic interception while maintaining ease of setup through the display interface.
Solution Approach 2:
The system implements feedback mechanisms where the mobile device displays authentication codes and status information to the user in real-time. This feedback loop allows the user to verify that the correct device is being paired and to confirm authentication actions, preventing unauthorized interception while maintaining a simple setup process through visual confirmation.
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 secure, keyless control of vehicle functions, including entry and engine start, using a mobile device as a key fob, and allows for the programmable assignment of driver status, enhancing convenience and security by eliminating the need for a physical key in certain situations.
Implementation Method 1
A key fob apparatus may enable a circuit having a transmitter to transmit vehicle security codes to one or more mobile devices using short range wireless communication
Data Source
AI summary
A mobile device having a transceiver, a microphone, and a processor programmed to control a vehicle function at a vehicle computing system based on a received voice command via the microphone. The transceiver is configured to receive key fob security codes having predefined key assignments from the vehicle computing system. The microphone is configured to receive voice command inputs associated with the key fob security codes. The processor is programmed to configure a mobile device application to initiate vehicle control functions using the security codes, and in response to a voice command, transmit a vehicle function request to the vehicle computing system via the transceiver.