Thermal Brake Sensor System for Multi-Axle Commercial Vehicle Balance Monitoring
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Solution Overview
Problem
Commercial trucks and trailers face challenges with uneven braking, which can lead to safety issues and premature brake wear due to the inability to monitor brake pressure distribution across wheels, and existing ABS systems may inadvertently reduce braking pressure on adjusted wheels during lockup situations.
Innovation Solution
A Thermal Brake Sensor system that measures brake temperatures across individual wheels, providing real-time feedback to the driver through a visual and audio interface, and logs data for maintenance analysis, ensuring even brake balance and preventing overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ABS sensors are used to detect wheel lockup, then wheel lockup detection capability is improved, but the ability to accurately identify uneven brake balance is worsened because ABS sensors may reduce braking pressure on adjusted wheels during lockup situations
Solution Approach 1:
The patent introduces thermal sensors as an intermediary measurement method. Instead of relying on ABS sensors that directly control brake pressure (which may mask imbalance issues), the thermal sensors indirectly measure brake temperature as a mediator variable. This temperature data serves as evidence of actual brake usage patterns, allowing detection of uneven braking without interfering with the brake control system.
Solution Approach 2:
The patent replaces the mechanical/electrical ABS sensor system with a thermal measurement system. By substituting the measurement approach from direct pressure/speed sensing to thermal field measurement, the system gains the ability to detect brake imbalance without the side effect of pressure reduction on adjusted wheels. The thermal field measurement is passive and does not interfere with brake operation.
2Loss of information
If drivers manually check brake drum heat by hand, then brake temperature information can be obtained, but the ability to provide real-time continuous monitoring is worsened and safety risks increase
Solution Approach 1:
The patent implements a self-service monitoring system where thermal sensors automatically measure and report brake temperatures without requiring driver intervention. The system serves itself by continuously collecting temperature data and presenting it to the driver through a display interface, eliminating the need for manual checking while providing ongoing information about brake condition.
Solution Approach 2:
The patent establishes a feedback loop where thermal sensor measurements are continuously transmitted to a driver interface. This real-time feedback allows drivers to see current brake temperatures and detect imbalances immediately, rather than discovering issues only after manual inspection or when problems become severe. The feedback mechanism transforms passive temperature data into actionable information.
3Device complexity
If no brake monitoring system is installed, then device complexity is reduced, but the ability to detect and prevent brake failures is worsened
Solution Approach 1:
The patent segments the brake monitoring function from the main brake control system. By adding separate, dedicated thermal sensors and a独立的 display system, the monitoring capability is added as a modular component rather than integrating it into the existing complex brake control architecture. This segmentation allows the monitoring function to be added with minimal impact on overall system complexity.
Solution Approach 2:
The patent replaces complex mechanical pressure measurement and analysis systems with simple thermal field measurement. Thermal sensors are inherently simpler devices that passively detect temperature without requiring complex signal processing or integration with brake control mechanisms. This substitution achieves reliable failure detection while maintaining low system complexity.
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 enhances safety by alerting drivers to potential brake issues, reducing maintenance costs, and preventing accidents by ensuring balanced braking, thereby saving on fines, repairs, and potential losses.
Implementation Method 1
At the wheels is a thermocouple capable of measuring temperatures from 32 F-1200 F
Implementation Method 2
The use of brakes is based on a simple concept—Friction. Friction creates heat, which increases exponentially with the pressure applied to the brakes
Data Source
AI summary
The present invention provides a system for monitoring brake balance of a motor vehicle by measuring temperatures of each wheel having a temperature sensor constructed and arranged for measuring temperature of a motor vehicle brake and recording each temperature measurement as a temperature reading,a communications link between said sensors and a data compiler, wherein the communication link receives transmitted information from each of said sensors relating to temperature readings,a temperature groups sorter configured to receive information on temperature readings from said data compiler and sorts each reading into one of at least two groups based on a selected temperature group range, andan output configured for output of information relating to said temperature readings from said temperature groups sorter.