Brake Control Unit Manufacturer Identification via Electrical Resistance
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Solution Overview
Problem
Aircraft brake control systems face challenges in identifying the correct brake manufacturer, leading to potential performance degradation and safety compromises due to improper identification of brake systems, especially when components from different manufacturers are used.
Innovation Solution
A brake control unit (BCU) applies a test voltage to a connector of the brake temperature monitoring system (BTMS) and measures the observed voltage to determine the brake manufacturer information, using a lookup table to match the observed electrical properties with known profiles associated with different manufacturers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If brake manufacturers provide different brake systems for the same aircraft series, then customer choice and system versatility are improved, but the difficulty of identifying the correct brake manufacturer increases
Solution Approach 1:
The patent applies preliminary action by implementing manufacturer identification through electrical property measurements during system initialization or installation. The BCU proactively measures electrical properties (resistance, voltage, current) of brake components before operation to determine manufacturer identity, preventing mismatches before they occur. This early detection mechanism ensures the correct control logic is loaded from the outset.
Solution Approach 2:
The patent replaces manual or mechanical identification methods with electrical measurement techniques. Instead of physical inspection or mechanical tagging systems, the BCU uses electrical property measurements (resistance, voltage responses, current characteristics) to automatically identify the brake manufacturer. This substitution enables rapid, accurate, and automated identification without human intervention.
2Measurement precision
If the brake control system uses automated identification methods, then identification speed and accuracy are improved, but the device complexity increases
Solution Approach 1:
The patent applies self-service by enabling the BCU to automatically perform manufacturer identification without external assistance. The system self-tests electrical properties of brake components, compares measurements against stored manufacturer profiles, and autonomously determines compatibility. This self-identifying capability eliminates the need for manual configuration or external identification tools, reducing operational complexity despite the automated measurement functions.
Solution Approach 2:
The patent utilizes parameter changes in electrical properties (resistance, voltage, current characteristics) as unique identifiers for different brake manufacturers. Each manufacturer's brake system exhibits distinct electrical parameter signatures that the BCU measures and compares. By transforming physical electrical parameters into identification data, the system achieves high accuracy without requiring complex mechanical or optical identification hardware.
3Reliability
If the brake control unit performs electrical property measurements to identify manufacturer, then identification reliability is improved, but the energy consumption increases
Solution Approach 1:
The patent applies periodic action by performing electrical property measurements at specific intervals rather than continuously. The BCU conducts manufacturer identification measurements during initialization, after brake component replacements, or when compatibility is questioned. This periodic measurement approach ensures reliable identification while minimizing unnecessary energy consumption during normal brake operation when manufacturer identity remains unchanged.
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 method ensures accurate identification of brake manufacturers, improving safety and performance by ensuring compatibility between the BCU and BTMS, preventing mismatch states and enabling appropriate control logic loading to maintain optimal braking system behavior.
Implementation Method 1
applying, by a brake control unit ("BCU"), a test voltage to a connector of a brake temperature monitoring system ("BTMS"), measuring, by the BCU, an observed voltage across the connector
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
Systems and methods for identification of brake suppliers and vehicle models based on electrical resistance of the brake control unit (20a,20b;310) are disclosed herein. Based on calculated values, both the brake supplier and model of vehicle can be determined.