Vehicle Door Closure Control When Key Location Is Unavailable
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Solution Overview
Problem
Existing vehicle systems fail to effectively manage door closure when the vehicle key is not located, leading to doors being left open unintentionally.
Innovation Solution
A vehicle control system that includes a position detector and a controller to initiate different control modes based on the proximity and detectability of the vehicle key, ensuring door closure even when the key is not within a specified range or detectable for a predetermined period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door is closed only when the vehicle key is located a specified distance or greater away, then the door closure is safe when the key is detectable, but the door may remain open unintentionally when the key cannot be located
Solution Approach 1:
The system dynamically switches between two control modes based on key detection status. In the first control mode, door closure is conditioned on key distance; in the second control mode (when key is not detected), door closure proceeds after a predetermined period without key detection. This dynamic adaptation ensures reliable door closure in both scenarios while maintaining operational safety.
2Extent of automation
If the door closes automatically when key distance is sufficient, then door closure is automated and convenient, but the door may close unintentionally if the key is not actually present
Solution Approach 1:
The system continuously monitors key position and detection status, providing feedback to the control unit. When the key is detected at sufficient distance, the first control mode is activated. When key detection fails for a predetermined period, the system transitions to the second control mode. This feedback mechanism prevents unintentional closure while maintaining automation, as the system responds appropriately to actual key presence or absence.
3Reliability
If two different control modes are implemented based on key detection, then door closure reliability is improved, but the control system complexity increases
Solution Approach 1:
The control system is segmented into two distinct control modes with clearly defined activation conditions. The first control mode handles scenarios where the key is detected at sufficient distance, while the second control mode handles scenarios where the key is not detected for a predetermined period. This segmentation allows the system to manage complexity through structured division of control logic while maintaining high reliability through context-appropriate responses.
Data Source
AI summary
A vehicle includes a position detector configured to detect where a vehicle key is located, and a controller. The controller is configured to initiate a first control mode that includes closing a door of the vehicle if a deferred closure request for closing the door is acquired and the position detector detects that the vehicle key is located a specified distance or greater away from the vehicle. Further, the controller is configured to initiate a second control mode that differs from the first control mode and includes closing the door if the deferred closure request is acquired and the position detector does not detect where the vehicle key is located for a predetermined specified period.