Motor Vehicle Rear View Mirror Alignment via Driver Eye Position Detection
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Solution Overview
Problem
Existing automatic mirror setting systems in vehicles face issues with alignment due to defective sensor systems or improper driver positioning, leading to potential misalignment or failure in determining the driver's eye position.
Innovation Solution
A method that determines the current eye position of the driver using an interior sensor system upon actuation of a control element, automatically aligns the rear view mirror or other optical components based on this position, and outputs an indication if the eye position cannot be determined, allowing the driver to adjust their position with visual or haptic cues, and optionally restarting the alignment process after a time interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic mirror setting systems are implemented, then mirror alignment is automated and driver distraction is reduced, but the system may fail to determine eye position accurately due to defective sensors or improper driver positioning
Solution Approach 1:
The system provides visual feedback through a positioning display (e.g., in head-up display or instrument cluster) that shows the driver where to position their eyes for accurate detection. This feedback loop allows the driver to adjust their position based on visual cues, ensuring reliable eye position detection while maintaining automated mirror alignment functionality.
Solution Approach 2:
The system performs preliminary eye position detection and provides positioning displays before attempting mirror alignment. This preliminary action ensures that the eye position is accurately determined and the driver is properly positioned, preventing alignment failures due to improper positioning or sensor defects.
2Measurement precision
If manual mirror adjustment is required, then the driver can precisely set the mirror position, but driver distraction increases and operator control complexity increases
Solution Approach 1:
The system enables the driver to self-correct their positioning by providing visual feedback through the positioning display. The driver uses the visual cues to adjust their own position, eliminating the need for manual mirror adjustment while maintaining alignment precision and reducing distraction.
3Reliability
If the system waits for a time interval before outputting indication, then false alarms are reduced, but the alignment process takes longer
Solution Approach 1:
The system uses periodic checking with a defined time interval threshold to determine whether to output the indication. This periodic action balances reliability (by filtering out transient detection failures) with efficiency (by not delaying indefinitely), allowing the alignment process to complete within a reasonable time frame.
Data Source
AI summary
A method is provided for aligning at least one rear view mirror and/or another optical component of a motor vehicle. The current eye position of the driver is determined by an interior sensor system upon actuation of a control element. The at least one rear view mirror is automatically aligned as a function of the determined current eye position of the driver. An indication is output when the eye position of the driver cannot be determined.