Wheel Sensor Detachment Detection Using Centrifugal Acceleration
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Solution Overview
Problem
Existing sensor devices in motor vehicle wheels face challenges in detecting detachment from their mounting position, which can lead to failure and tire damage, as current technologies lack reliable methods to monitor their location accurately.
Innovation Solution
The proposed solution utilizes acceleration sensors to detect detachment by analyzing measurement signals, including centrifugal acceleration, and incorporates additional sensors like temperature and deformation measuring elements, along with a monitoring system that evaluates signal strength and characteristic oscillations to ensure precise detection of the sensor's position within the wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor device is disposed in a wheel to monitor tire pressure and wheel revolution, then the safety and monitoring capability of the motor vehicle is improved, but the device may become detached from its mounting position leading to sensor failure and tire damage
Solution Approach 1:
The patent applies preliminary action by using the acceleration sensor to detect detachment conditions before actual damage occurs. The sensor continuously monitors acceleration patterns that indicate detachment, allowing the system to identify and respond to potential failures before they cause tire damage or complete sensor failure.
Solution Approach 2:
The patent implements feedback by using the acceleration sensor to provide continuous information about the sensor device's mounting status. The measured acceleration values are evaluated to determine whether the device remains properly mounted, creating a closed-loop monitoring system that provides real-time feedback on device integrity.
2Measurement precision
If additional sensors like temperature and deformation measuring elements are added to detect detachment, then the detection accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by making the acceleration sensor perform multiple functions: it detects both wheel revolution (original function) and detachment conditions (additional function). This multi-functionality improves measurement precision for detachment detection without adding separate dedicated sensors, thereby avoiding increased device complexity.
Solution Approach 2:
The patent implements self-service by using the existing acceleration sensor to monitor its own mounting status. The sensor device uses its own built-in acceleration sensor to detect whether it has become detached, eliminating the need for additional monitoring sensors and reducing overall device complexity while maintaining high 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 approach allows for reliable and accurate detection of sensor detachment, reducing the risk of sensor failure and tire damage by using existing acceleration sensors and additional sensors to monitor the sensor's position, ensuring timely intervention and improved safety.
Implementation Method 1
The sensor device (14) contains an acceleration sensor (22), the measurement signal (MS_A) of which is representative of the acceleration of the sensor device (14), especially centrifugal acceleration, whenever it is duly located in its mounting position (MP)
Data Source
AI summary
A sensor device is disposed in a wheel. It contains an acceleration sensor, the measurement signal of which is representative of the acceleration of the sensor device. Detachment of the sensor device from its mounting position is detected according to the measurement signal of the acceleration sensor. The sensor device can also contain a position sensor, the measurement signal of which is representative of a relative position of the sensor device based on its mounting position. The sensor device can also contain a deformation measuring element disposed in such a way that a measurement signal of the deformation measuring element exhibits a characteristic oscillation if the sensor device has become detached from its mounting position.