Railway Bogie Battery Mounting for Stability
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Solution Overview
Problem
The high weight and center of gravity of traction batteries mounted on rail vehicles, typically on the roof or underfloor, lead to structural instability and weight distribution issues, limiting battery capacity and requiring heavy, costly car body designs.
Innovation Solution
A bogie with a fastening device for the battery, allowing it to be securely attached directly to the bogie, lowering the center of gravity, distributing weight evenly, and providing easy access for maintenance, while allowing for a stable and lightweight rail vehicle construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is mounted on the roof of the rail vehicle, then the battery is easily accessible and secure, but the center of gravity becomes high resulting in structural instability
Solution Approach 1:
Instead of mounting the battery on the roof (high position), the invention inverts the mounting location to the bogie (low position near the ground). This inversion of the mounting location simultaneously achieves secure battery fixation and low center of gravity, resolving the contradiction between battery security and vehicle stability.
2Stability of the object's composition
If the battery is mounted in the underfloor area of the car body, then the center of gravity is low, but the high weight causes deflection requiring a very robust and heavy car body design
Solution Approach 1:
The invention extracts the battery mounting function from the car body structure and relocates it to the bogie. This separation allows the battery weight to be borne by the bogie frame rather than the car body, enabling low center of gravity without requiring a heavy car body design.
3Stability of the object's composition
If the battery is mounted on the bogie, then the center of gravity is low and weight distribution is improved, but the mounting structure becomes more complex
Solution Approach 1:
The invention merges the battery mounting function with the existing bogie frame structure. By utilizing the bogie frame as the mounting base and integrating fastening points into the frame design, the mounting structure achieves stable weight distribution without adding significant structural complexity.
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 configuration enhances safety, stability, and accessibility, enabling larger battery weights without straining the bogie, improves weight distribution, and simplifies maintenance, while ensuring quick grounding in case of electrical faults.
Implementation Method 1
If the frame is part of the unsprung mass, the mounting device is connected to the frame via a spring mechanism, allowing the battery to be mounted with springs. The spring mechanism can be part of the mounting device
Data Source
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AI summary
A bogie for a rail vehicle has mounting devices for a battery, so that the battery can be positioned on the bogie.