Windscreen Wiper Speed Control via State Switching
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Solution Overview
Problem
Existing wiper systems, both manual and automatic, lack flexibility in adjusting wiper movement speed to meet individual driver preferences and varying conditions, leading to inefficient and complex operations.
Innovation Solution
A wiper intelligence control method and device that allows switching between automatic and manual operation states, enabling drivers to adjust wiper speed manually or automatically based on precipitation intensity, with the ability to lock and adjust wiper speed to meet specific requirements, using a microprocessor and manual operation module to manage speed adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wiper provides multiple manual operation gears, then the driver can select different speeds, but the operation becomes complex and the number of gears is insufficient to meet diverse requirements
Solution Approach 1:
The manual operation mode allows dynamic adjustment of wiper speed within a continuous range rather than being limited to fixed discrete gears. This dynamic speed adjustment capability provides numerous speed options without requiring multiple fixed gear positions, thereby increasing versatility while maintaining simple operation.
Solution Approach 2:
The system changes the control parameter from discrete gear selection to continuous speed parameter adjustment. By allowing the wiper speed to be set to any value within a range rather than selecting from predetermined gears, the system provides infinite speed options while simplifying the operational interface.
2Ease of operation
If the wiper movement speed is fixed in manual mode, then the operation is simple, but the system lacks flexibility to adjust to varying driver requirements under different conditions
Solution Approach 1:
The manual operation mode incorporates dynamic speed adjustment capability where the driver can modify the wiper speed parameter during operation. This allows the system to maintain operational simplicity through a single-mode interface while providing flexibility to adapt speed to varying driver requirements and conditions.
Data Source
AI summary
Provided are a wiper intelligence control method and device. The a wiper intelligence control method includes following steps: an operation state of a wiper is switched to an automatic wiper operation state or a manual wiper operation state according to a received wiper operation state switch signal; when the wiper operates in the automatic wiper operation state, if a wiper movement speed adjustment signal output from a manual operation module is received, a current wiper movement speed is adjusted; when the wiper is switched from the automatic wiper operation state to the manual wiper operation state, the current wiper movement speed of the wiper is locked as the wiper movement speed in the manual wiper operation state; when the wiper operates in the manual wiper operation state, if the wiper movement speed adjustment signal output from the manual operation module is received, the current wiper movement speed is adjusted.