Vehicle Function Restriction Priority Control Against Theft Deactivation
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Solution Overview
Problem
Existing vehicle theft prevention systems fail to effectively prevent thieves from deactivating function restrictions once the vehicle is stolen, rendering the restrictions ineffective.
Innovation Solution
An electronic control device with a function restriction management system that sets priorities for activation and deactivation operations, determining whether function restrictions can be deactivated based on the priority of the operation type, ensuring that only authorized users can deactivate the restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If function restriction is activated to prevent vehicle theft, then vehicle security is improved, but the system complexity increases due to priority management requirements
Solution Approach 1:
The system performs preliminary actions by setting and maintaining priority levels before theft occurs. Different operation types (owner operations vs. thief operations) are assigned different priorities in advance, so that when a deactivation request comes in, the system can immediately compare the request priority with the maintained priority to determine whether to allow deactivation, without needing complex real-time analysis
Solution Approach 2:
The system changes the parameter of priority levels associated with different operation types. Owner operations are assigned higher priorities while thief operations receive lower priorities. This parameter change enables the system to distinguish between authorized and unauthorized deactivation requests through simple priority comparison, resolving the contradiction between security and complexity
2Reliability
If priority-based deactivation control is implemented to prevent unauthorized deactivation, then theft prevention effectiveness is improved, but the ease of operation deteriorates due to additional control steps
Solution Approach 1:
The system uses the operation type itself to carry the priority information needed for authentication. When an operation is performed, the system automatically determines its type (owner or thief) and assigns the corresponding priority, eliminating the need for separate authentication steps. The operation type serves its own authentication purpose, making the system both secure and easy to use
Data Source
AI summary
An electronic control device includes at least one of (i) a circuit and (ii) a processor with a memory storing computer program code executable by the processor. The at least one of the circuit and the processor configured to cause the electronic control device to: activate a function restriction against vehicle theft; set a priority based on an operation type corresponding to an activation operation or a deactivation operation of the function restriction; maintain the set priority; update the maintained priority when a current priority indicated by a function restriction activation request is higher than the maintained priority; determine, based on the priority, whether the activated function restriction can be deactivated; and deactivate the function restriction, which has been activated, in response to determining that the function restriction can be deactivated.