Train Body Height Adjustment via Air Springs for Platform Leveling
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Solution Overview
Problem
Existing railway vehicles face challenges in adapting to varying height differences between the train floor and platforms due to differences in vehicle models and platform standards, causing inconvenience and potential safety hazards during boarding and alighting, and existing height adjustment systems are either passive or not suitable for train floors.
Innovation Solution
A method for dynamically adjusting the train body height by determining the adjustment height ΔH as ΔH=H1-H2+H3, where H1 is the platform height, H2 is the design train floor height, and H3 is the actual deviation, using air springs and solenoid valves to aerate or deflate the air springs to match the platform height, with additional features like supplementary air sources and mechanical valves for enhanced adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed height compensation system is used, then the system structure is simple, but it cannot adapt to different height differences caused by vehicle model and platform standard variations
Solution Approach 1:
The patent implements dynamic height adjustment by controlling air spring inflation/deflation in real-time based on detected height differences, transforming the static suspension system into a dynamic one that can adapt to varying platform heights and vehicle models
Solution Approach 2:
The system uses height detection devices to monitor the vertical position of the vehicle body and feeds this information back to the control unit, which then adjusts air spring pressure accordingly to maintain the desired height and eliminate height differences with platforms
2Extent of automation
If mechanical height adjustment valves are used for passive adjustment, then the system is simple, but it cannot actively adjust height according to actual demands
Solution Approach 1:
The system automatically detects height differences and adjusts air spring pressure without requiring manual intervention, with the control unit autonomously determining when to inflate or deflate air springs based on sensor feedback
Solution Approach 2:
The patent replaces traditional mechanical height adjustment valves with an automated control system that uses electronic sensors and solenoid valves to control air spring pressure, enabling active adjustment based on real-time height detection
3Adaptability or versatility
If existing height adjustment systems are applied to train floors, then height adjustment is possible, but they are not suitable for train floor characteristics
Solution Approach 1:
The control system is designed to work with train floor characteristics by integrating height detection devices on the train body and using air springs specifically positioned to adjust train floor height, making the system universally applicable to different train models and platform configurations
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 method allows for real-time, adaptable height adjustment of the train floor to match the platform height, eliminating height differences without additional hardware and reducing the impact of external factors, ensuring safety and convenience.
Implementation Method 1
aerating/deflating air springs of a train bogie to make the train floor rise/fall
Implementation Method 2
using air springs and solenoid valves to aerate or deflate the air springs
Data Source
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AI summary
a height adjustment method for a train body, comprising height adjustment steps after a train pulls in, specifically comprising the following steps: S1, determining an adjustment height ΔH which is: ΔH=H1-H2+H3, wherein H1 is a platform height, H2 is the design height of train floor, and H3 is an actual deviation between the actual height of the train floor and the design height after arriving at a station; S2, after the train arrives at the station, aerating/deflating air springs of a train bogie according to the adjustment height ΔH to make the train floor rise/fall by the adjustment height ΔH, so that the floor height of the train body is flush with the platform height. The adjustment height is determined according to the data characteristics of the train, which has strong adaptability, can eliminate the personality errors of different train models, and does not require additional hardware. At the same time, the determination of the height is forward-looking, and the height can be adjusted and determined in real time according to the actual operation of the train without the influence of external factors, such as lack of maintenance, of the train.