Convertible Locking Hook Position Detection via Hall Sensor
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Solution Overview
Problem
Existing locking devices for convertible vehicles cannot continuously detect the position of the locking hook, leading to potential collisions and power outage-related position loss, requiring unnecessary stops to ensure proper positioning.
Innovation Solution
A locking device that uses a sensor to directly or indirectly detect the position of the driving element, such as a rotation or linear sensor, to continuously monitor the locking hook's position, allowing for accurate determination of intermediary positions and preventing position loss during power outages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If end-position sensors (microswitches) are used to detect locking hook position, then the locked and release positions can be detected, but intermediary positions cannot be detected and unnecessary stops are required
Solution Approach 1:
The patent replaces mechanical end-position sensors (microswitches) with a Hall sensor that provides continuous position detection. The Hall sensor detects the position of a driving wheel through magnetic field interaction, enabling continuous monitoring of the locking hook position without mechanical contact, thus eliminating the need for stops at intermediary positions.
Solution Approach 2:
The patent introduces a Hall sensor as an intermediary detection device that indirectly measures the locking hook position by detecting the position of the driving wheel. This intermediary measurement approach allows continuous position information to be obtained without directly sensing the locking hook itself, resolving the contradiction between detection precision and time loss.
2Measurement precision
If Hall sensor counts rotations of driving motor to detect locking hook position, then continuous position detection is possible, but position is lost in the event of a power outage
Solution Approach 1:
The patent implements a feedback mechanism where the Hall sensor continuously monitors the driving wheel position and provides real-time position information to the control device. This continuous feedback loop ensures that the current position is constantly updated and stored, preventing position loss during power outages by maintaining awareness of the system state.
Solution Approach 2:
The patent employs preliminary action by continuously updating and storing the locking hook position information before any power outage occurs. The control device maintains readiness with current position data through continuous Hall sensor monitoring, so that when power is restored, the system immediately knows the current position without needing to recount rotations from a reference point.
3Device complexity
If locking hook position is not continuously detected, then device complexity is reduced, but collision with top storage compartment covering cannot be prevented
Solution Approach 1:
The patent replaces complex mechanical position detection systems with a simpler Hall sensor-based magnetic field detection system. This substitution maintains continuous position monitoring capability to prevent collisions while reducing mechanical complexity, as the Hall sensor requires no direct mechanical connection to the moving parts.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous detection of the locking hook's position, saving time by avoiding unnecessary stops and ensuring accurate positioning, even in the event of a power outage.
Implementation Method 1
the position of a locking hook can be detected by means of a Hall sensor, which interacts with a driving wheel of a driving motor
Data Source
AI summary
A locking device for a convertible vehicle is proposed, comprising a locking support, a locking hook, which can be shifted in a translational and/or rotational manner so as to be displaced between a release position and a locked position, and a driving mechanism for the locking hook, said driving mechanism comprising a driving element, which is driven by a driving motor and drives the locking hook, as well as a detection device for detecting a position of the driving element. The detection device is a sensor, which continuously detects the position of the driving element with respect to the locking support.