Tire Information Acquisition Device Fitting for Rim Hump
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Solution Overview
Problem
Conventional tire air pressure monitoring systems face issues with the tire information acquisition device being damaged or removed due to contact interference when removing the tire from the rim, and the need for separate manufacturing of tire wheels for different-sized sensors reduces versatility and increases costs.
Innovation Solution
A vehicle wheel design with a rim hump and through hole configuration, incorporating a fitting between the rim inclined face and the tire information acquisition device, which includes a device contact surface and a rim hump contact surface, positioned to prevent contact interference and damage during tire removal, allowing for a simple and versatile configuration that maintains the integrity of the sensor system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tire information acquisition device is installed on the rim surface facing the tire cavity region, then the tire information can be acquired effectively, but the device is damaged or removed due to contact interference when removing the tire from the rim
Solution Approach 1:
A fitting is introduced as an intermediary component between the rim and the tire information acquisition device. The fitting includes a rim contact surface that contacts the rim and a device contact surface that contacts the acquisition device, positioning the device away from the rim surface to prevent direct contact interference during tire removal while maintaining effective tire information acquisition.
2Reliability
If protective members are provided integral with the rim to protect the sensor, then the sensor is protected from contact interference, but the positions of protective members differ for different sensor sizes requiring separate wheel manufacturing
Solution Approach 1:
The fitting is designed as a universal component that can accommodate tire information acquisition devices of different sizes. The fitting maintains a consistent configuration on the rim while allowing the acquisition device to be positioned at an optimal location, enabling a single wheel design to be used with various sensor sizes without requiring separate protective members for each sensor type.
Data Source
AI summary
A vehicle wheel includes a rim that extends in the wheel circumferential direction, that includes a rim hump formed in a convex form projecting to the outside in the wheel radial direction, and a through hole formed on a rim inclined face that is slanted to an inside in the wheel radial direction on an inside in a wheel width direction from a top of the rim hump. When the tire is fitted, a tire cavity region facing the rim hump is formed. The wheel includes a tire valve fitted to the through hole and a tire information acquisition device installed in the tire cavity region on the tire valve that acquires tire information on the condition of gas filling the tire cavity region. A fitting is provided between the rim inclined face and the tire information acquisition device.