Motorized Vehicle Shutter Opening with Parallel Obstacle Detection
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Solution Overview
Problem
The existing motorized shutter opening systems in vehicles require a significant duration between the user's request and the actual movement of the shutter due to the sequential steps of unlocking and obstacle detection, leading to a perceived delay and potential user dissatisfaction.
Innovation Solution
A method where the detection of obstacles and deactivation of locking mechanisms are initiated simultaneously, allowing the shutter to move once the longest step is completed, thereby reducing the overall time required before the shutter is moved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sequential steps of obstacle detection and locking deactivation are implemented in traditional order, then safety and reliability are ensured, but the total execution time increases significantly
Solution Approach 1:
The obstacle detection is performed in advance during the user's approach to the shutter, before the actual opening sequence is initiated. This preliminary detection allows the system to be ready to open immediately when the user activates the control, eliminating the sequential delay between detection and deactivation steps.
Solution Approach 2:
The obstacle detection process runs continuously or periodically while the user approaches the vehicle, rather than being interrupted or restarted when the opening command is given. This continuous action ensures that detection and deactivation can proceed in parallel without temporal gaps, reducing total execution time while maintaining safety.
2Measurement precision
If obstacle detection is performed before locking deactivation in sequential steps, then accurate obstacle identification is achieved, but user-perceived response time deteriorates
Solution Approach 1:
The system performs obstacle detection preliminarily during the user's approach, so that when the user activates the opening control, the detection is already complete or nearly complete. This maintains detection accuracy while making the system response appear instantaneous to the user.
Solution Approach 2:
The system dynamically adjusts its operation mode based on the user's proximity and actions. When the user is approaching, the system performs detection; when the user activates the control, the system immediately transitions to deactivation and opening, creating a dynamic response that maintains both accuracy and perceived responsiveness.
3Reliability
If multiple successive steps including unlocking and obstacle detection are required, then system safety and reliability are improved, but the complexity of the control sequence increases
Solution Approach 1:
The system merges the obstacle detection function with the approach detection function. The same sensor system detects both the user's approach and potential obstacles, eliminating the need for separate detection sequences and reducing control complexity while maintaining safety through continuous monitoring.
Solution Approach 2:
The obstacle detection system serves multiple functions: it detects obstacles during approach, identifies objects near the shutter, and provides safety monitoring during opening. This multi-functionality reduces the need for separate specialized systems, simplifying the overall control architecture while maintaining comprehensive safety.
Data Source
Figure 1~2
AI summary
The invention relates to a method for opening a movable shutter of the type that is movable along a predefined path, between a closed position and an open position, by motorized movement means that are activatable by at least one command, the shutter comprising locking means designed to immobilize the shutter in the closed position, the shutter comprising obstruction detection means which are designed to detect obstructions that might be found on the predefined path, the method comprising a detection step (ET1), following a user actioning (AC) a command, which step consists in using the obstruction detection means to detect an obstruction that might be found on the path, the method further comprising a deactivation step (ET2) which consists in deactivating the locking means in order to allow the shutter to move, the detection step (ET1) and the unlocking step (ET2) being initiated simultaneously.