Autonomous Rail Maintenance Trailer With Battery-Powered Track Treatment
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Solution Overview
Problem
Existing rail vehicle systems for track maintenance lack flexibility and efficiency, particularly in terms of energy supply and operation, limiting their ability to perform tasks independently and emission-free.
Innovation Solution
A rail vehicle system comprising a track-carrying vehicle and a trailer, each with its own power supply and energy storage, allowing for decoupled operation with the trailer using its energy storage for autonomous maintenance, and coupled operation with energy transfer via a charging cable and wireless data connection for coordinated work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the trailer is decoupled from the track vehicle for autonomous operation, then operational flexibility and emission-free operation are improved, but coordination and energy management complexity increase
Solution Approach 1:
The rail vehicle system is divided into two independent operational units: a track vehicle and a trailer. Each unit has its own power supply capabilities, allowing the trailer to operate autonomously when decoupled. This segmentation enables flexible deployment where the trailer can perform maintenance tasks independently or in coordination with the track vehicle, resolving the contradiction between operational flexibility and system complexity through modular design.
Solution Approach 2:
The trailer is designed with universal functionality to operate both in coupled mode (attached to the track vehicle) and uncoupled mode (independently). It possesses its own energy storage device and processing capabilities, making it adaptable to different operational scenarios. This multi-functionality allows the same trailer unit to serve various purposes regardless of its coupling state, improving versatility while managing complexity through standardized interfaces.
2Object-generated harmful factors
If the trailer operates autonomously with its own energy storage device, then emission-free operation is improved, but device complexity and initial cost increase
Solution Approach 1:
The trailer is equipped with its own energy storage device (battery) and power management systems, enabling it to service itself without relying on external power sources during autonomous operation. This self-service capability allows the trailer to operate emission-free by using its stored electrical energy to power its traction drive and processing devices, eliminating the need for fossil fuel-based generators while managing the complexity through integrated power management.
Solution Approach 2:
The power supply configuration changes based on operational mode: in coupled mode, the trailer can draw power from the track vehicle's power supply; in uncoupled mode, it switches to using its own energy storage device. This parameter change in power source selection allows the system to maintain emission-free operation across different scenarios while managing complexity through adaptive power management that selects the appropriate energy source based on current operational requirements.
3Object-generated harmful factors
If the entire rail vehicle is supplied from the overhead line via pantograph, then emission-free operation is improved, but operational constraints increase due to overhead line dependency
Solution Approach 1:
The power supply system is segmented into multiple independent sources: overhead line supply for the track vehicle and energy storage devices for both the track vehicle and trailer. This segmentation allows the trailer to maintain emission-free operation through its battery when decoupled, while the track vehicle can operate from the overhead line when available. The system adapts to different operational constraints by selecting appropriate power sources for each unit based on availability and operational mode.
Solution Approach 2:
The power supply configuration is made dynamic and adaptive rather than fixed. The trailer can switch between being powered by the track vehicle (when coupled) and using its own energy storage device (when uncoupled). The track vehicle can switch between overhead line power and its own energy storage device. This dynamic power management enables emission-free operation across various scenarios while reducing operational constraints by eliminating dependency on a single power source or continuous overhead line availability.
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
Enables flexible, efficient, and emission-free track maintenance by allowing independent operation of the trailer and coordinated work with the track vehicle, optimizing energy use and reducing operational constraints.
Implementation Method 1
a trailer (3) with an energy storage device (16) for providing electrical energy
Implementation Method 2
the tracked vehicle is supplied with electrical energy from an overhead line via a pantograph
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Method for carrying out work on a track system (9) using a rail vehicle (1) which comprises a track motor car (2) having at least one electrically operable treatment device (4, 5) and having an energy supply device (15) for providing electrical energy, and which comprises a trailer car (3) coupled to the track motor car (2) and having an energy storage device (16) for providing electrical energy, wherein the rail vehicle (1) is driven to a track location for treatment, wherein the trailer car (3) is decoupled from the track motor car (2), and wherein the track location for treatment is treated using the track motor car (2). The invention is characterized in that before and/or after the treatment using the track motor car (2), the track location is treated using the trailer car (3) by virtue of an electric traction drive (14) of the trailer car (3) and a treatment device (6-8) of the trailer car (3) being supplied with electrical energy from the energy storage device (16). In this way, the trailer car (3) is used autonomously for track treatment.