Wheel End Temperature Monitoring for Early Bearing Failure Warning
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Solution Overview
Problem
There is a need for a system to monitor the temperature of a wheel end assembly and collect data for immediate and long-term evaluation, as high temperatures can lead to wheel lockup, fire, or detachment from the axle due to failures such as bearing or brake failures.
Innovation Solution
A wheel end high-temperature warning system that includes a temperature sensor with a sensor head configured for mounting at the spindle section of an axle near the wheel end assembly, a transmitter on the axle to receive and transmit temperature signals, and a vehicle data acquisition module to process the signals, display the temperature, and initiate alarms if the temperature exceeds a threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature monitoring system is installed to detect wheel end assembly temperature, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent combines the temperature sensor, transmitter, and data processing capabilities into an integrated monitoring system. The sensor head is mounted directly on the wheel end assembly while the transmitter unit is positioned on the axle, merging multiple functions (temperature detection, signal transmission, data processing) into a coordinated system that improves safety without excessive complexity
Solution Approach 2:
The patent introduces a transmitter as an intermediary component between the temperature sensor and the data acquisition module. The transmitter receives signals from the sensor and transmits them to the data acquisition module, facilitating communication while allowing the sensor to remain isolated in the high-temperature environment
2Measurement precision
If the sensor head is positioned near the wheel end assembly for accurate temperature detection, then measurement precision is improved, but the sensor is exposed to high temperatures which may cause damage
Solution Approach 1:
The patent divides the monitoring system into separate functional components: a sensor head positioned near the wheel end assembly for accurate temperature detection, and a transmitter unit positioned on the axle away from the highest temperatures. This segmentation allows the sensing element to be close to the measurement point while protecting electronic components from thermal damage
Solution Approach 2:
The transmitter serves as an intermediary that receives temperature signals from the sensor head through wiring and transmits these signals to the data acquisition module. This allows the sensor head to remain in the high-temperature zone for accurate measurement while the transmitter and processing electronics are positioned in a cooler environment
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 provides accurate and timely temperature monitoring and alerts, enabling operators to identify potential high-temperature hazards before they lead to critical failures such as fire or wheel detachment, thus ensuring safer vehicle operation.
Implementation Method 1
a sensor head configured for mounting at a spindle section of an axle near or in the wheel end assembly, the sensor head being in a heat exchange relationship with a bearing or other component of the wheel-end assembly
Data Source
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AI summary
A wheel end high-temperature warning system for a vehicle having a wheel-end assembly mounted to an axle is described. The system may include a first temperature sensor including a sensor head configured for mounting within a spindle section of the wheel end assembly, the sensor head in a heat exchange relationship with a bearings of the wheel-end assembly. The system may further include a transmitter disposed on the axle to which the wheel-end assembly is mounted, the transmitter being configured to receive a first sensor signal from the first temperature sensor indicative of a wheel-end temperature and transmit the signal to a receiver. A vehicle data acquisition module may be coupled to the receiver, the data acquisition system being programmed to receive the first sensor signal and process the signal to determine a measured temperature of the spindle.