Wheel Well Tag Layout for Accurate Multi-Wheel Position Detection
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Solution Overview
Problem
Existing wheel monitoring systems face challenges in accurately determining wheel positions due to signal damping in robust vehicle constructions and complexities in large vehicles with multiple wheels, leading to inaccurate signal transmission and identification.
Innovation Solution
A wheel monitoring system comprising a plurality of tags mounted in wheel wells and corresponding tag readers mounted to the wheels, allowing for precise identification of wheel mounting positions through unique information transmitted by the tags.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are mounted on each wheel to send electromagnetic signals to a stationary receiving unit, then wheel position monitoring is enabled, but signal damping in robust vehicle constructions leads to inaccurate position determination
Solution Approach 1:
The patent inverts the traditional sensor placement by mounting the electromagnetic signal transmitter (tag) in the stationary wheel well and the receiver (tag reader) on the moving wheel. This reversal allows the signal to be transmitted from a fixed position where it can be clearly identified, while the receiver moves with the wheel to detect the signal's origin, thereby eliminating signal damping issues and enabling accurate position determination.
Solution Approach 2:
The patent introduces unique identification tags as intermediaries between the wheel position and the monitoring system. Each wheel well is assigned a unique tag that transmits its identification signal to the tag reader on the wheel. This intermediary tag system enables reliable position identification by providing a clear, unambiguous signal source that is not affected by vehicle construction damping.
2Quantity of substance
If multiple wheels are mounted directly besides and/or behind one another in large vehicles, then the vehicle can handle larger loads, but signal transmission and wheel identification become impaired
Solution Approach 1:
The patent segments the wheel monitoring system by assigning a unique identification tag to each wheel well position. Instead of trying to identify wheels through a centralized system that struggles with multiple closely-spaced wheels, each wheel well is divided into an independent signal source. The tag reader on each wheel detects the unique signal from its corresponding wheel well, enabling precise identification even when multiple wheels are mounted closely together.
3Loss of information
If a transmitter unit with previously stored position information is mounted on the wheel, then wheel position information can be transmitted, but inadvertent wheel position changes result in wrong position indications
Solution Approach 1:
The patent inverts the information storage location by placing the unique position identification tag in the stationary wheel well rather than on the movable wheel. This ensures that the position information remains fixed and accurate regardless of wheel changes. When a wheel is remounted, the tag reader on the wheel detects the unique signal from the current wheel well's tag, automatically providing the correct position information without requiring reprogramming.
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 enables accurate and reliable determination of wheel positions, even in complex vehicle configurations, by ensuring each tag is closest to only one wheel, thereby improving signal reliability and reducing errors.
Implementation Method 1
a plurality of tags for wirelessly sending electromagnetic signals
Data Source
AI summary
The invention is directed to a wheel monitoring system for a vehicle, comprising tags for wirelessly sending electromagnetic signals, wherein at least one of the tags is mounted separately from each wheel in a wheel well. The system further comprises tag readers for wirelessly receiving and reading electromagnetic signals. In particular, each of the wheels comprises one of the tag readers for receiving electromagnetic signals sent by one of the tags mounted in a wheel well. Furthermore, the invention is directed to a vehicle comprising a wheel monitoring system, wherein each tag of a plurality of tags comprises unique information identifying one or more of the tag and a mounting position of the tag. Moreover, the invention is directed to a method of locating mounting positions of wheels.