Adaptive Brake Pressure Balancing for Wheel Overheating
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Solution Overview
Problem
Excessive brake pressure can cause high wheel temperatures, leading to brake damage and reduced performance without affecting braking performance.
Innovation Solution
A computer system that adjusts brake pressure based on wheel temperature differences, reducing pressure on overheated wheels and increasing it on others to maintain a constant demanded brake pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If brake pressure is increased to improve braking performance, then braking force is improved, but wheel temperature becomes excessively high causing brake damage
Solution Approach 1:
The system applies different brake pressures to different wheels based on their individual temperature conditions. When one wheel becomes overheated, the system reduces brake pressure specifically on that wheel while maintaining or increasing pressure on other wheels, ensuring localized adaptation rather than uniform pressure reduction across all wheels.
Solution Approach 2:
The brake pressure is dynamically adjusted in real-time based on temperature sensor feedback. The control system continuously monitors wheel temperatures and modifies brake pressure allocation between wheels during braking operations, transitioning from static pressure application to dynamic, condition-based pressure modulation.
2Temperature
If brake pressure is reduced on overheated wheels to lower temperature, then wheel temperature is reduced, but braking performance deteriorates
Solution Approach 1:
The system merges the brake pressure control of multiple wheels into a coordinated system. When one wheel requires pressure reduction for cooling, the system compensates by increasing pressure on other wheels, combining their braking forces to maintain overall braking performance while allowing the overheated wheel to cool.
Solution Approach 2:
The system changes the brake pressure parameter dynamically based on temperature conditions. By adjusting pressure distribution across wheels according to real-time temperature data, the system optimizes both thermal management and braking performance through parameter adaptation rather than fixed pressure settings.
3Ease of operation
If uniform brake pressure is applied to all wheels, then braking simplicity is maintained, but individual wheel overheating cannot be prevented
Solution Approach 1:
The system implements temperature feedback control where temperature sensors on each wheel provide real-time data to the control system. Based on this feedback, the system automatically adjusts brake pressure distribution, transitioning from open-loop uniform pressure application to closed-loop adaptive pressure control that responds to actual thermal conditions.
Solution Approach 2:
The brake system performs self-regulation by automatically adjusting its own pressure distribution based on temperature feedback. The control system monitors wheel temperatures and autonomously modifies brake pressure allocation without requiring external intervention, enabling the system to self-correct thermal imbalances while maintaining braking effectiveness.
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
Preserves brake linings, enhances durability, and maintains braking performance by allowing overheated wheels to cool, ensuring safety without impacting vehicle deceleration.
Implementation Method 1
receive a wheel temperature of at least two wheels of the vehicle, from temperature sensors located on the at least two wheels
Data Source
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AI summary
A computer system (40) for a vehicle comprising an electronic brake system (30), the computer system (40) comprising processing circuitry (41) configured to: - receive a wheel temperature of at least two wheels of the vehicle, from temperature sensors (21, 22, 23, 24) located on the at least two wheels; - calculate an average wheel temperature from the received wheel temperatures; - for each wheel temperature, determine a wheel temperature difference; the processing circuitry (41) being configured to, if the electronic brake system (30) is activated and a wheel temperature difference of one given wheel is strictly above a temperature difference threshold, reduce a brake pressure applied to the given wheel by the electronic brake system (30) and increase a brake pressure applied to the other wheel by the electronic brake system (30) to maintain a demanded brake pressure constant on the wheels.