Portable Train Management System Testing Simulation
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Solution Overview
Problem
Current methods for testing train management systems on road-rail vehicles are time-consuming and expensive, requiring the use of specialized and costly vehicles, and there is a need for a cost-effective way to perform critical feature validation and debugging without a locomotive.
Innovation Solution
A system comprising portable enclosures with a train management computer, power source, and simulation devices to emulate brake pipe pressures and speed signals, allowing for testing on existing road-rail vehicles, enabling simulation of a train management system on a road-rail vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specially equipped road-rail vehicles with built-in TMC are used for testing, then testing capability is achieved, but cost and adaptability deteriorate
Solution Approach 1:
The system divides the TMC testing equipment into separable components: a portable enclosure containing the TMC and another portable enclosure containing the power source. This segmentation allows the testing system to be transported and configured on existing road-rail vehicles without permanent modifications, resolving the contradiction between achieving testing capability and maintaining vehicle adaptability.
Solution Approach 2:
The patent introduces portable enclosures as intermediary carriers that house the TMC and power source. These enclosures serve as mediators between the testing equipment and existing road-rail vehicles, enabling testing capability while avoiding permanent modifications to the vehicles, thus preserving adaptability.
2Reliability
If locomotives are used for TMS testing, then comprehensive testing can be performed, but operational cost and time increase
Solution Approach 1:
The system uses a portable enclosure that copies or replicates the essential functions of a locomotive-based TMC environment. By creating a simplified, portable version of the testing system that can be deployed on road-rail vehicles, the patent achieves comprehensive testing capability without requiring actual locomotives, thereby improving testing efficiency and reducing costs.
3Productivity
If road-rail vehicles are used instead of locomotives for testing, then cost and time are reduced, but testing authenticity may deteriorate
Solution Approach 1:
The system employs simulation devices that can generate and vary parameters such as brake pipe pressure and speed signals to match authentic train operating conditions. By dynamically adjusting these parameters to replicate real train behavior, the patent maintains testing authenticity while using cost-effective road-rail vehicles instead of locomotives.
Data Source
AI summary
A simulation system, device, and method for testing a train management system on a road-rail vehicle is provided. The simulation system includes: a brake pressure simulation device adapted to be connected to a first input of the train management computer, the brake pressure simulation device including at least one circuit configured to output signals representative of at least one brake pipe pressure; and a speed simulation device adapted to be connected to a second input of the train management computer, the speed simulation device configured to detect a speed of the road-rail vehicle and output signals representative of the speed. Also disclosed is a simulation system wherein the at least one circuit of the brake pressure simulation device is configured to have variable resistances.