Vehicle Wiper High Park Position Snow Ice Reduction
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Solution Overview
Problem
Conventional windshield wiper systems experience poor wipe quality during winter months due to snow and ice build-up on the wiper blades, which affects visibility and driver experience.
Innovation Solution
A wiper system with a selectable high park position that positions the wiper blade farther from the bottom edge of the windshield, reducing snow and ice accumulation, utilizing a wiper arm, drive motor, controller, and switch to toggle between standard and high park modes without additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a selectable high park position feature is added to the wiper system to prevent snow and ice build-up, then wipe quality improves during winter, but the device complexity and cost increase
Solution Approach 1:
The existing wiper system components (motor, controller, switch) are made multi-functional. The controller not only controls wiper operation but also selects between two park positions based on switch input. This allows the system to provide snow/ice prevention capability using existing hardware rather than adding dedicated new components.
Solution Approach 2:
The system changes the operational parameter of park position by software/control logic rather than hardware modification. The controller interprets switch signals to select between two park positions, and this parameter change is achieved through control algorithm modification rather than physical system redesign.
Data Source
AI summary
A method of operating a wiper system on a window of a vehicle. The method comprising: setting a park position for a wiper to one of a standard park position or a high park position, where the standard park position locates a wiper blade of the wiper closer to a bottom edge of the window; activating the wiper system to cause the wiper to be pivoted back and forth between an in-wipe position and an out-wipe position; deactivating the wiper system; if the park position is set to the standard park position when the wiper system is deactivated, stopping movement of the wiper when the wiper blade is in the standard park position; and if the park position is set to the high park position when the wiper system is deactivated, stopping movement of the wiper when the wiper blade is in the high park position.