Rail Vehicle Compressor Control for Even Runtime Distribution
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Solution Overview
Problem
Existing compressor management systems for rail vehicles do not effectively optimize the operation of multiple compressors to meet dynamic compressed air requirements, leading to uneven compressor usage and maintenance intervals, especially in changing train formations.
Innovation Solution
Classifying compressors as 'masters' and 'slaves' based on their running times and performance, with masters being prioritized for operation based on air demand, to ensure even distribution of loads and maintenance, and adjusting classifications periodically to optimize usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If compressors are operated based on fixed priority order, then compressor management is simplified, but compressor usage becomes uneven and maintenance intervals become irregular
Solution Approach 1:
The patent implements dynamic compressor classification where compressors are periodically reclassified as master or slave based on their accumulated running time. This dynamic adjustment ensures that compressors with longer running times are given priority to operate, thereby distributing usage more evenly across all compressors while maintaining simple operational control through automated classification.
2Reliability
If compressors are operated based on running time classification, then compressor usage is distributed evenly, but classification complexity increases
Solution Approach 1:
The control system automatically monitors the running times of all compressors and performs periodic reclassification without external intervention. The system self-adjusts the master-slave configuration based on accumulated operating data, eliminating the need for manual classification while achieving even distribution of compressor usage.
Solution Approach 2:
The system continuously monitors compressor running times and uses this feedback to dynamically adjust the master-slave classification. This closed-loop control ensures that compressors are reclassified based on actual usage patterns, maintaining even distribution of operating loads while adapting to changing conditions.
3Duration of action of stationary object
If compressors are reclassified periodically, then maintenance intervals are optimized, but control complexity increases
Solution Approach 1:
The system performs compressor reclassification at predetermined periodic intervals rather than continuously. This periodic action optimizes maintenance intervals by ensuring compressors are rotated through master and slave roles systematically, while avoiding the excessive complexity of continuous real-time reclassification.
Data Source
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AI summary
The invention relates to a method for controlling a compressed air supply of rail vehicles, which compressed air supply comprises at least one compressed air reservoir (10) for providing compressed air and a plurality of compressors (12a...n) for feeding the at least one compressed air reservoir (10) with compressed air, in which method the available compressors (12a...n) are firstly identified, the identified compressors (12a...n) are categorised into at least one master and at least one slave, and the identified compressors (12a...n) are then operated according to the categorisation thereof into master and slave and according to a compressed air demand in the at least one compressed air reservoir (10), wherein the compressors classified as master are operated with priority. With the described compressor management, in particular compressor run times can be more uniformly distributed and mechanical loads on the components of the compressors can be reduced, even if the trainset formation of rail vehicles is changed.