Vehicle Side Window Pressure Film for Universal Seal Contact Testing
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Solution Overview
Problem
Existing testing devices for determining contact pressure of vehicle side windows on window seals are limited to specific vehicle models, requiring multiple devices due to varying window sizes and seal positions, and involve complex setups with potential measurement inaccuracies.
Innovation Solution
A universally applicable testing device with a pressure measuring film and central processing unit, including sensors and a display, that can be easily positioned on the vehicle side window to measure contact pressure accurately, using multiple sensors for comprehensive data and correcting for film thickness, with options for adhesive attachment and flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate door strikers are used to secure the test position, then the vehicle door can be positioned just before closed position, but the testing device can only be used for one vehicle model/type each
Solution Approach 1:
The testing device is designed with a universal door striker system that can be applied to different vehicle models and types. The striker is positioned on the bodywork at a standardized location, allowing the same testing device to secure various door configurations in a defined test position, thereby enabling multi-vehicle model compatibility while maintaining measurement precision
2Ease of operation
If the vehicle door is positioned just before closed position, then the test position can be secured, but small measurement deviations result in incorrect determination of contact pressures
Solution Approach 1:
The testing device incorporates a feedback mechanism where the door striker position on the bodywork provides a reference point that enables accurate determination of the door's test position. This feedback allows for precise measurement of the distance between the door and bodywork, correcting for small measurement deviations and ensuring accurate contact pressure determination in the position just before closed
3Measurement precision
If a complex measurement setup is used, then indirect determination of contact pressure is enabled, but the device requires multiple components and complex setup procedures
Solution Approach 1:
The invention extracts and isolates the essential measurement function to a simple door striker system positioned on the bodywork. Instead of using a complex multi-component measurement setup, the solution focuses on a single striker element that directly provides the necessary measurement reference, thereby simplifying the device while maintaining the capability for indirect contact pressure determination
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
Enables reliable and accurate determination of contact pressure across different vehicle types, minimizing wind noise and water ingress, with easy adjustment and verification of contact pressure values.
Implementation Method 1
a pressure measuring film (5) that can be removably arranged on the vehicle side window (2) in the region of the window seal and that is connected to the evaluation unit (4) of the central processing unit (2)
Data Source
AI summary
A testing device for detecting a contact pressure of a vehicle side window contacting a window seal arranged on the bodywork. In order to provide a universally applicable testing device that can be used for different vehicle types and models and that allows for reliable determination of the contact pressures, the testing device is designed having a central processing unit comprising a power supply, an evaluation unit and a display unit for showing the determined contact pressure, and having a pressure measuring film that can be removably arranged on the vehicle side window in the region of the window seal and that is connected to the evaluation unit of the central processing unit.