Remote Bogie Brake Isolation for Unmanned Rail Vehicles
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Solution Overview
Problem
Existing urban rail vehicles with brake cutting-off valves under passenger seats cannot meet the requirements of unmanned vehicles, as they lack the capability to remotely and efficiently cut off a bogie brake during emergency braking.
Innovation Solution
A method and system that includes an Operating Control Center (OCC) sending a cutting-off signal to a Train Control and Management System (TCMS), which processes the signal to generate an isolation control signal to control an electromagnetic valve, allowing for remote cutting off of a bogie brake by parsing fault data and determining the failed bogie, thus enabling efficient brake release during emergency conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a brake cutting-off valve is set under the passenger seat to cut a single bogie brake off, then the brake can be cut off conveniently in manual drive mode, but the requirements of an unmanned vehicle cannot be met
Solution Approach 1:
The patent replaces the manual mechanical operation of the brake cutting-off valve with an automated electronic control system. The OCC sends electronic control signals through the TCMS to electromagnetic valves, which automatically actuate the brake cutting-off mechanism without requiring manual intervention. This substitution enables unmanned vehicle operation while maintaining brake cutting-off functionality.
Solution Approach 2:
The system enables self-service operation where the brake cutting-off function is automatically activated through the OCC and TCMS without requiring a driver or manual intervention. The electronic control system detects brake failures and automatically triggers the cutting-off sequence, allowing the vehicle to handle brake emergencies autonomously in unmanned mode.
2Device complexity
If a manual brake cutting-off valve is used, then the structure is simple, but the response speed and efficiency in fault state are insufficient
Solution Approach 1:
The patent replaces the simple mechanical valve structure with an electronic control system comprising OCC, TCMS, and electromagnetic valves. This substitution increases response speed and fault resolution efficiency through automated signal processing and rapid electromagnetic actuation, while the modular electronic architecture keeps system complexity manageable.
Solution Approach 2:
The system performs preliminary actions by pre-configuring the OCC and TCMS to automatically detect brake failures and initiate the cutting-off sequence without waiting for manual intervention. The electromagnetic valves are pre-positioned and ready to actuate immediately upon receiving control signals, significantly reducing response time compared to manual operation.
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 solution allows for the remote and efficient cutting off of a bogie brake in unmanned urban rail vehicles, meeting the requirements of unmanned operation and improving fault state management by using an OCC, TCMS, and electromagnetic valves to isolate the failed bogie, ensuring safety and efficiency.
Implementation Method 1
an electromagnetic valve corresponding to a bogie is controlled according to the isolation control signal to act, so as to cut the bogie brake off
Data Source
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AI summary
A method, device and system for cutting a bogie brake off are disclosed. The method includes that: when a bogie brake is not able to be relieved, a cutting-off instruction output from an Operating Control Center (OCC) is received, wherein the cutting-off instruction is used for triggering an action of cutting the bogie brake off; a logic operation is performed on the cutting-off instruction to obtain an isolation control instruction; and an electromagnetic valve corresponding to a bogie is controlled to act according to the isolation control instruction, so as to cut the bogie brake off. According to the method, the technical problem that a brake cutting-off valve is set under a passenger seat to cut a single bogie brake off in the existing urban rail vehicle, but the requirements of an unmanned vehicle cannot be met is solved.