Synchronized Rear Vision System Automatic Mirror Adjustment
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Solution Overview
Problem
Existing rear vision systems for vehicles require manual adjustment of mirrors, particularly for the Blindzone/Glare Elimination setting method, which is cumbersome and time-consuming, and lack automatic detection and selection between different setting methods, necessitating driver intervention to ensure optimal visibility during lane changes.
Innovation Solution
A synchronized rear vision system that includes a master controller to automatically detect and adjust the positions of external side and interior rearview mirrors using position sensors, allowing for either Blindzone or Blindzone/Glare Elimination setting methods, and integrates with driver seat adjustment for personalized settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustment of mirrors is used for Blindzone/Glare Elimination setting method, then driver can achieve optimal visibility coverage, but driver effort and time consumption increase significantly
Solution Approach 1:
The system performs preliminary automatic detection and calculation of optimal mirror positions for both Blindzone and Blindzone/Glare Elimination setting methods before driver adjustment is needed. When driver adjusts one mirror, the system has already prepared the corresponding positions for other mirrors, enabling automatic synchronized adjustment without requiring driver to manually set each mirror position.
Solution Approach 2:
The system uses the driver's own mirror adjustment action on one mirror as the trigger to automatically perform the corresponding adjustments on other mirrors. The system serves itself by detecting the adjustment and automatically calculating and executing the synchronized positions, eliminating the need for driver to manually adjust each mirror separately.
2Ease of operation
If automatic mirror adjustment system is implemented, then driver effort is reduced, but system complexity increases due to detection and control circuitry
Solution Approach 1:
The system incorporates position sensors on mirrors to detect instantaneous mirror positions and feeds this information back to the control circuitry. This feedback mechanism enables the system to automatically detect when a mirror is adjusted and calculate the corresponding positions for other mirrors, providing automatic synchronized adjustment without requiring complex manual intervention systems.
Solution Approach 2:
The control circuitry is designed to handle multiple setting methods (Blindzone and Blindzone/Glare Elimination) and automatically detect which method the driver is using based on the adjustment pattern. The same control system serves both automatic synchronized adjustment and memory positioning functions, reducing overall system complexity by consolidating control functions.
3Ease of operation
If system automatically detects setting method, then ease of use improves, but measurement and detection difficulty increases
Solution Approach 1:
The system continuously monitors mirror position feedback from sensors and detects the setting method being used by analyzing the adjustment pattern. When the driver adjusts a mirror beyond a certain angle threshold characteristic of Blindzone/Glare Elimination method, the system detects this pattern and automatically switches to the corresponding calculation algorithm, making detection transparent to the driver.
4Loss of time
If synchronized mirror adjustment is implemented, then time consumption is reduced, but device complexity increases due to coordination requirements
Solution Approach 1:
The control circuitry pre-calculates and stores the corresponding mirror positions for both Blindzone and Blindzone/Glare Elimination setting methods. When a driver adjusts one mirror, the system retrieves the pre-calculated positions from memory and executes synchronized adjustment, eliminating the need for complex real-time coordination calculations and reducing adjustment time.
Data Source
AI summary
A synchronized rear vision system for a vehicle includes a pair of external side rearview mirrors for attachment to the vehicle and an interior rearview mirror for attachment to the vehicle. The synchronized rear vision system also includes a system master controller for detecting an instantaneous position of one of the side rearview mirrors and calculating position output signals for at least another one of the side rearview mirrors and the interior rearview mirror to automatically position at least the another one of the side rearview mirrors and the interior rearview mirror based on the instantaneous position. The synchronized rear vision system may include a controller to readjust the position of the rearview mirrors based on a position of a driver seat of the vehicle.