Vehicle Operation Panel Layout for Accurate Load Sensor Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing vehicle interior parts with load sensors lack specific consideration for the arrangement of load sensors, which affects the detection accuracy of switch operations by users.
Innovation Solution
The operation panel features a load sensor positioned to detect displacement greater than the operation part's displacement, with a panel member having projected portions that face the load sensor, allowing for improved load detection accuracy by enhancing the load sensed during switch operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the load sensor is positioned to detect displacement greater than the operation part's displacement, then the detection accuracy is improved, but the structural complexity increases due to the projected portions
Solution Approach 1:
The invention introduces projected portions that extend from the panel member in a direction toward the load sensor, creating a three-dimensional structural feature. This dimensional addition allows the load sensor to detect amplified displacement at the tip end portion of the projected portions, improving detection accuracy while maintaining a compact overall structure.
Solution Approach 2:
The projected portions act as intermediary elements between the operation part and the load sensor. When the operation part is pressed, the deformation is transmitted through the panel member to the tip end portions of the projected portions, which then interact with the load sensor. This intermediary structure amplifies the displacement signal for better detection.
2Reliability
If two load sensors are provided as shown in JP 6563095 B, then the detection capability is enhanced, but the arrangement optimization is insufficient leading to suboptimal detection accuracy
Solution Approach 1:
The invention applies local quality by creating projected portions with specific geometric characteristics at particular locations on the panel member. Each projected portion is designed with specific dimensions and orientation to optimize the displacement amplification effect at its tip end portion, where the load sensor is positioned to detect the maximized displacement signal.
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
This configuration enhances the detection accuracy of the load sensor by capturing a larger load than what is applied directly to the switch, ensuring reliable operation detection.
Implementation Method 1
the load sensor is provided at a position where the displacement of the panel member is greater than a displaced amount of the operation part when the operation part is operated
Data Source
AI summary
An operation panel provided on a vehicle is provided with: a panel member exposed to an interior of a vehicle cabin of the vehicle; an operation part provided on the panel member; and a load sensor provided so as to face a back surface of the panel member, the a load sensor being configured to detect that the operation part has been operated based on a load caused by a displacement of the panel member, wherein the load sensor is provided at a position where the displacement of the panel member is greater than a displaced amount of the operation part when the operation part is operated, the panel member has a projected portion projecting out from the back surface such that a tip end portion faces the load sensor, and the projected portion is formed of divided projected portions, the divided projected portions being provided by being divided into a plurality of parts.