Sensor Glazing Wiper Translation for Curved Surface Cleaning
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Solution Overview
Problem
Existing cleaning systems for motor vehicle sensors/transmitters struggle to effectively clean elongate or curved glazed surfaces due to issues with dirt accumulation and the need for bulky or inefficient designs, particularly when trying to reduce travel time and adapt to smaller dimensions.
Innovation Solution
A cleaning system featuring a wiper driven by a rotary motor with a conversion device that converts rotary movement into linear movement, allowing for precise translation along the axis of the wiper, suitable for both flat and curved surfaces, using a connecting rod system or cam mechanism to ensure effective cleaning with a standard rotary motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotary drive motor with conversion device is used to clean elongate glazed surfaces, then cleaning effectiveness is improved, but device complexity increases
Solution Approach 1:
The cleaning system divides the elongate glazed surface into multiple cleaning zones by using a wiper that moves in discrete translational steps along the surface, with each position addressing a specific segment of the surface area
Solution Approach 2:
The system dynamically adapts the wiper's motion characteristics by converting rotary motor movement into precise translational motion along the elongate surface, allowing the wiper to maintain optimal contact pressure and coverage area throughout the cleaning cycle
2Area of stationary object
If a rotary drive motor with conversion device is used to clean elongate glazed surfaces, then cleaning coverage is improved, but device complexity increases
Solution Approach 1:
The system extends cleaning coverage along the longitudinal dimension of the elongate surface by converting rotary motion into translational motion, allowing the wiper to traverse the length of the surface rather than being limited to a fixed arc path
3Ease of manufacture
If a standard rotary motor is used with conversion device, then cost is reduced, but device complexity increases
Solution Approach 1:
The system achieves specialized cleaning functionality for elongate surfaces using a standard rotary motor combined with a conversion mechanism, allowing the same motor type to serve multiple application scenarios without requiring custom-designed high-cost actuators
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system efficiently cleans elongate or curved glazed surfaces by reducing travel time and adapting to smaller dimensions, ensuring thorough cleaning while minimizing system bulkiness and operational complexity.
Implementation Method 1
at least one conversion device for converting the rotary movement of the drive motor into a rectilinear movement along the axis of translation
Data Source
AI summary
System for cleaning a glazed surface of a motor vehicle, including at least one wiper and a drive device for driving at least the wiper along an axis of translation, substantially perpendicular to said wiper, where the glazed surface is a detection surface of a sensor/emitter of a detection assembly and in that the drive device includes at least one drive motor driving in rotation about an axis of rotation substantially perpendicular to the axis of translation, and at least a conversion device converting a rotational movement of the drive motor into a rectilinear movement along the axis of translation.