Turn Signal Lever Position Detection Using Resistance Jump Sequences
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle light signaling control devices face issues with accurate detection of the light control lever position due to poor contact and other factors, leading to incorrect turn signal activation and increased driving risk.
Innovation Solution
A status detection method and device that analyze resistance jump sequences to determine if the vehicle light signaling control device has malfunctioned, comparing actual resistance changes with pre-defined sequences to ensure accurate position determination and prevent false activations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If resistance value detection method is used to determine light control lever position, then detection simplicity is improved, but detection accuracy deteriorates due to poor contact causing incorrect position identification
Solution Approach 1:
The system performs preliminary actions by detecting resistance values at multiple sequential positions (first position, second position, third position) before making a final position determination. This preliminary multi-point detection allows the system to establish a resistance change pattern that is compared against preset sequences, thereby improving accuracy while maintaining operational simplicity.
Solution Approach 2:
The system implements feedback by comparing the actual resistance jump sequence obtained from sequential detection against a preset resistance jump sequence. This feedback mechanism identifies whether the detected position matches the actual position by verifying consistency between the observed resistance changes and expected resistance patterns, thereby correcting for poor contact issues.
2Device complexity
If conventional resistance interval determination method is used, then device complexity is reduced, but reliability deteriorates due to false position detection leading to incorrect turn signal activation
Solution Approach 1:
The detection process is segmented into multiple distinct detection steps corresponding to different target positions (first target position, second target position, third target position). Each segment detects resistance at a specific position, and the results are combined to form a resistance jump sequence. This segmentation allows the system to verify position accuracy through multiple independent detection points, improving reliability without significantly increasing device complexity.
Solution Approach 2:
The system employs dynamic detection by sequentially moving through different detection positions and capturing resistance values at each stage. The resistance jump sequence is dynamically generated based on the actual resistance changes observed during sequential detection, allowing the system to adapt to varying contact conditions and improve reliability through dynamic verification rather than static single-point detection.
Data Source
AI summary
The invention relates to the technical field of device detection, and in particular provides a status detection method and device for a vehicle light signaling control device, and a vehicle, so as solve a technical problem of how to accurately and reliably detect an operating status of a vehicle light signaling control device. For this purpose, according to the method of an embodiment of the invention, a first resistance jump sequence of a currently detected position resistance may be obtained according to historical position resistance data and the currently detected position resistance; and then it is determined whether the vehicle light signaling control device has malfunctioned, according to a comparison result of the first resistance jump sequence and a preset second resistance jump sequence. By means of the foregoing steps, when a jump sequence of the position resistance is consistent with a normal resistance jump sequence, it may be determined that an actual position of a turn position shifting module is a position corresponding to this position resistance, which overcomes a defect of false position determination in the prior art caused by the inconsistency between a position corresponding to a resistance value detection result and an actual position of a light control lever.