Aircraft Brake Cooling Control via Real-Time Temperature Feedback
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Solution Overview
Problem
Conventional aircraft brake cooling systems lack the ability to access temperature and other aircraft-specific information, such as expected departure time and taxi duration, which are crucial for minimizing brake wear, as they operate externally without real-time data on brake conditions.
Innovation Solution
An aircraft brake cooling system that includes a temperature sensor, a controller, and an external cooling apparatus, where the controller receives temperature data and aircraft parameters to generate control signals for the cooling apparatus, optimizing cooling based on the wear rate profile and specific conditions like maximum wear rate temperature to minimize brake wear and prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional simple on/off control is used for cooling systems, then the system is easy to operate, but brake wear is not minimized because temperature and aircraft-specific information are not accessed
Solution Approach 1:
The system implements feedback control by continuously monitoring brake temperature through temperature sensors and using this information to automatically adjust cooling apparatus operation. The controller receives temperature data and activates cooling only when brake temperature exceeds thresholds, eliminating the need for manual pilot intervention while optimizing brake wear prevention.
Solution Approach 2:
The cooling system operates autonomously by self-monitoring brake temperature and self-regulating cooling apparatus activation without requiring external manual control. The system serves itself by automatically making decisions based on real-time temperature feedback, improving both ease of operation and brake wear minimization.
2Device complexity
If external cooling apparatus is used without real-time temperature data, then the system structure is simpler, but the cooling effectiveness is reduced due to lack of temperature-based control
Solution Approach 1:
Temperature sensors provide real-time feedback on brake temperature to the controller, which automatically activates or deactivates the external cooling apparatus based on whether temperature exceeds predetermined thresholds. This feedback mechanism ensures cooling effectiveness without requiring complex manual control systems.
Solution Approach 2:
The system replaces manual mechanical control with electronic automation. The controller electronically monitors temperature data and automatically sends control signals to the cooling apparatus, substituting pilot action with an electronic control system that improves cooling effectiveness while maintaining relatively simple system structure.
3Temperature
If cooling apparatus is activated continuously, then brake temperature is kept low, but energy consumption increases unnecessarily
Solution Approach 1:
The cooling apparatus operates periodically rather than continuously, activating only when brake temperature exceeds predetermined thresholds and deactivating when temperature is within acceptable ranges. This periodic operation maintains effective brake temperature control while significantly reducing unnecessary energy consumption.
Solution Approach 2:
The system applies cooling action only partially - specifically when and where needed based on actual brake temperature conditions. Rather than continuous full-power cooling, the system activates cooling apparatus only when temperature thresholds are exceeded, optimizing the balance between temperature control and energy consumption.
4Temperature
If cooling apparatus is activated without considering wear rate profile, then cooling is provided, but brake wear may increase by cooling through the maximum wear rate temperature zone
Solution Approach 1:
The controller receives and stores wear rate profile data indicating the relationship between brake temperature and wear rate before operation. This preliminary information allows the controller to make informed decisions about when to activate cooling, avoiding temperature ranges that would increase wear while still providing necessary cooling.
Solution Approach 2:
The system uses feedback control that incorporates wear rate profile information to determine optimal cooling activation thresholds. By monitoring brake temperature and comparing it against the wear rate profile, the controller activates cooling only when it will reduce wear, not when it would pass through high-wear temperature zones.
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 effectively minimizes brake wear by optimizing cooling strategies based on real-time data, reducing energy consumption by only activating cooling when necessary, and ensuring the brake temperature remains within safe limits to prevent excessive wear and overheating.
Implementation Method 1
a temperature sensor disposed onboard an aircraft and configured to measure a temperature data of an aircraft brake
Implementation Method 2
an external cooling apparatus configured to provide cooling to the aircraft brake
Data Source
AI summary
A brake cooling system of the present disclosure includes an external cooling apparatus located externally from an aircraft (e.g., available on the ground at the gate during parking of the aircraft). The external cooling apparatus is in electronic communication with the aircraft via a communication channel such that the external cooling apparatus receives live data from the aircraft for intelligent aircraft brake cooling. The live data includes measured brake temperature. The brake cooling system further includes a controller for collecting aircraft data and generating a cooling apparatus control signal.