TPMS Tire Wear Detection Using Acceleration Gradient Thresholds
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Solution Overview
Problem
Current methods for monitoring tire wear, especially in autonomous vehicles, face challenges in efficient communication between tire pressure monitoring systems (TPMS) and central processing units, leading to difficulties in accurately detecting tire wear and requiring complex system integration, which can increase power consumption and reduce service life.
Innovation Solution
A method implemented by a tire pressure monitoring module with a pressure sensor and radial accelerometer that acquires acceleration gradient measurements, processes them, compares to predetermined thresholds, and transmits warnings autonomously, eliminating the need for communication with a central processor, thus providing direct and efficient wear monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If communication between TPMS and central processing unit is implemented, then tire wear detection is achieved, but system complexity and power consumption increase
Solution Approach 1:
The TPMS module autonomously processes acceleration gradient measurements and determines tire wear status without requiring complex communication protocols with the central processing unit. The module serves itself by performing local analysis and generating wear indicators independently, thereby reducing system integration complexity while maintaining detection accuracy.
2Measurement precision
If communication between TPMS and central processing unit is implemented, then tire wear detection is achieved, but power consumption increases and service life decreases
Solution Approach 1:
The TPMS module performs autonomous processing of acceleration gradient measurements locally, eliminating the need for continuous communication with the central processing unit. This self-contained approach significantly reduces power consumption by avoiding radio frequency transmissions and complex data processing remotely, thereby extending the service life of the battery-powered monitoring system.
3Measurement precision
If manual inspection methods are used, then tire wear detection is achieved, but reliability decreases due to human error
Solution Approach 1:
The patent replaces manual visual inspection with an automated electronic sensing system that uses acceleration gradients to detect tire wear. The TPMS module continuously monitors tire conditions and provides objective, consistent measurements without being subject to human error, fatigue, or forgetfulness, thereby significantly improving monitoring reliability.
4Measurement precision
If indirect methods using multiple sensors are used, then tire wear detection is achieved, but device complexity increases
Solution Approach 1:
The patent extracts the essential measurement function from complex multi-sensor systems and implements it using a single acceleration sensor within the TPMS module. By focusing on acceleration gradient measurements specifically, the system eliminates the need for multiple sensors and complex data fusion algorithms, thereby reducing device complexity while maintaining tire wear detection accuracy.
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 solution allows for precise and autonomous tire wear monitoring, reducing power consumption and extending the service life of the monitoring module by processing dynamics of the acceleration gradient directly within the TPMS, providing more refined information for wear detection and prediction.
Implementation Method 1
acquiring (step E1) acceleration gradient measurements of the tire to be monitored
Data Source
AI summary
The invention relates to a method for monitoring the wear of a motor vehicle tire. According to the invention, the method comprises the following steps of:acquiring (step E1) acceleration gradient measurements of the tire to be monitored,performing (step E2) processing of said gradient measurements acquired,comparing (step E3) said processed measurements to a predetermined threshold value,transmitting a warning (step E4) when the predetermined threshold value is reached.The invention also relates to a tire pressure monitoring module, comprising hardware and/or software means for implementing said method, said hardware and/or software means being implemented in an integrated circuit.