Vehicle Security Control With Code-Based Power Limiting
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Solution Overview
Problem
Existing vehicle security systems do not effectively prevent unauthorized use or theft, and they lack the ability to dynamically adjust performance based on the operator's experience level or intended use.
Innovation Solution
A vehicle security system that includes a controller with a vehicle security module offering 'secure once' and 'secure all' modes of operation. The system limits the vehicle's power system until a valid security code is entered, and it can adjust performance settings based on the entered code, which corresponds to different operational modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional security system disables the vehicle completely when unauthorized, then theft prevention is improved, but the system lacks flexibility for different operational scenarios and user needs
Solution Approach 1:
The security system dynamically adjusts its response based on the entered code, transitioning between different operational states (disabled, limited, normal). This allows the same security mechanism to serve multiple purposes: preventing theft while enabling controlled access for authorized users with different experience levels.
Solution Approach 2:
The system changes operational parameters (power output limits, speed restrictions, feature availability) based on the security code entered. Different codes correspond to different parameter sets, allowing the vehicle to be adapted to various user needs while maintaining security controls.
2Reliability
If the security system limits power output to prevent theft, then unauthorized use is prevented, but the vehicle cannot be operated in normal conditions without disabling the security
Solution Approach 1:
The system performs preliminary verification of authorization status before enabling full operation. The security code entry requirement is established in advance, and once verified, the system transitions from limited to normal operation mode, allowing full power output without continuous intervention.
Solution Approach 2:
The system provides feedback through the instrument cluster regarding security status and code verification. This feedback mechanism guides the user through the authorization process and confirms when the vehicle is ready for normal operation, improving ease of use.
3Reliability
If the security system requires code entry for every start-up, then security is maximized, but user convenience is reduced
Solution Approach 1:
The security code verification is required periodically at each start-up cycle, ensuring continuous security assurance. The system maintains security assurance while establishing a predictable, routine process that users can quickly learn and execute.
4Adaptability or versatility
If the system provides multiple security codes for different modes, then adaptability is improved, but system complexity increases
Solution Approach 1:
The security system serves multiple functions through a single unified mechanism: theft prevention, user authentication, and operational mode selection. Different security codes unlock different functional states, allowing one system to handle multiple operational requirements without requiring separate control systems.
Data Source
AI summary
A vehicle is disclosed which includes a controller having at least one of a vehicle security module and a playback module. The vehicle security module may operate in a secure once mode of operation or in a secure all mode of operation. The playback module records ride information associated with the vehicle. The ride information may be provided to an external device.


