Vehicle Electronic Key Lock Control for In-Car Key Detection
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Solution Overview
Problem
Existing vehicle door locking systems using electronic keys may inadvertently lock the vehicle when the key is inside, allowing unauthorized control, as they fail to accurately determine the key's location and restrict functions accordingly.
Innovation Solution
An information processing device that uses a processor to determine if an electronic key terminal is inside the vehicle upon locking and restricts vehicle functions, such as unlocking or starting the engine, based on a lock trigger, while maintaining operability and allowing authorized users to remove restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door locking system uses electronic key detection to determine key location, then the vehicle can be locked when the key is outside, but the vehicle may be incorrectly locked when the key is inside due to erroneous determination
Solution Approach 1:
The system performs preliminary detection of the electronic key's location before executing the door locking operation. By detecting whether the terminal is inside or outside the vehicle prior to locking, the system prevents erroneous locking when the key is inside, thereby improving reliability without compromising ease of operation.
Solution Approach 2:
The door locking system incorporates feedback by continuously monitoring the electronic key's location status and using this information to control the locking operation. The system adjusts locking behavior based on real-time detection feedback, ensuring the door is not locked when the key is inside while allowing normal locking when the key is outside.
2Reliability
If the system restricts vehicle functions when the terminal is inside the vehicle, then unauthorized control is prevented, but legitimate user operations are also blocked
Solution Approach 1:
The system applies different quality states to different functions based on the terminal's location. When the terminal is detected inside the vehicle, only specific functions (unlocking, engine starting) are restricted while other functions remain operational. This selective restriction maintains security for critical functions while preserving ease of operation for non-critical functions.
Solution Approach 2:
The system dynamically adjusts the operational state of vehicle functions based on real-time detection of the terminal's location and authentication status. When the terminal is inside and unauthenticated, critical functions are restricted; when authenticated or when the terminal is outside, full functionality is restored. This dynamic adjustment balances security requirements with operational convenience.
3Speed
If the system determines key location immediately upon locking, then response time is reduced, but false determination occurs before the locking state is stable
Solution Approach 1:
The system implements a timing mechanism that waits for a predetermined period after the door locking operation before performing the electronic key location determination. This cushioning time allows the locking state to stabilize and prevents false determinations that would occur if detection were performed immediately during the transient locking phase, thereby improving measurement precision while maintaining acceptable response time.
Data Source
AI summary
An information processing device comprising a processor, the processor being configured to: in a case in which a door of a vehicle is locked, determine whether or not a terminal that operates as an electronic key is located in the vehicle; and in a case in which the terminal is determined to be located in the vehicle, perform control to restrict at least a subset of functions, among functions of the vehicle that are controlled in accordance with communications with the terminal, based on a lock trigger causing the locking of the door of the vehicle.