Rear Wiper Control via Full Display Mirror Status
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Solution Overview
Problem
The existing full display mirror systems in vehicles do not effectively notify drivers of unintentional rear wiper activation, leading to premature wear of wiper blades due to operation on dry windows, as the rearview camera system does not provide a view of the rear wiper's operation when in active mode.
Innovation Solution
A control system that monitors the operational status of the full display mirror system and automatically activates or deactivates the rear wiper system based on its mode, preventing rear wiper operation when the system is active and allowing a 'courtesy wipe' when switching from active to inactive mode to clear obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rear wiper system is operated independently without monitoring the full display mirror system status, then the rear wiper can clear obstructions on the rear window, but the wiper blade experiences premature wear due to unintentional activation on dry windows
Solution Approach 1:
The control unit monitors the operational status of the full display mirror system and uses this feedback to determine whether to activate the rear wiper system. When the full display mirror system is active, the control unit receives feedback indicating this state and prevents wiper activation, thereby avoiding premature blade wear while maintaining the ability to clear obstructions when appropriate.
2Reliability
If the full display mirror system is active providing camera view, then the driver has unobstructed rearward visibility, but the driver cannot notice when the rear wiper system is activated
Solution Approach 1:
The control unit acts as an intermediary between the full display mirror system and the rear wiper system. It monitors the operational status of the full display mirror system and automatically mediates wiper activation based on this status, preventing unintentional operation while maintaining driver visibility through the camera feed.
3Reliability
If the rear wiper system is automatically deactivated when full display mirror system is active, then unnecessary wear is reduced, but the rear window may not be cleared of obstructions when needed
Solution Approach 1:
The control unit dynamically adjusts the operational status of the rear wiper system based on the operational mode of the full display mirror system. When the full display mirror system transitions from active to inactive mode, the control unit detects this change and automatically activates the rear wiper system to clear obstructions, ensuring both blade protection and window clearing capability are maintained through dynamic response.
Data Source
AI summary
A method of operating a rear wiper system of a vehicle that includes monitoring an operational status of a full display mirror system of the vehicle, and automatically activating the rear wiper system when the full display mirror system is switched from an active mode to an inactive mode.