Distributed-Motor Bogie Layout for Space-Efficient Rail Vehicles
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Solution Overview
Problem
The existing railway vehicles face a challenge in utilizing space efficiently due to the central placement of the electric motor, which occupies space and limits the integration of other devices in the bogie body.
Innovation Solution
A bogie design with motors positioned between a pair of running wheels, allowing for efficient use of space by distributing the drive force to the wheels, and incorporating a guide device and steering mechanism to facilitate smooth operation on curved tracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the electric motor is disposed in the central portion of the bogie body to transmit driving rotational force to the running wheels, then the power transmission function is achieved, but the space in the central portion is occupied and other devices cannot be equipped
Solution Approach 1:
The patent divides the power transmission system into multiple independent motors, with each motor disposed near individual running wheels rather than using a single centralized motor. This segmentation allows each motor to independently drive its adjacent running wheel, eliminating the need for a centralized power transmission mechanism and freeing up the central bogie space for other devices.
Solution Approach 2:
The patent changes the spatial arrangement of motors from a centralized vertical arrangement to a distributed horizontal arrangement along the width direction of the bogie body. By positioning motors in the width direction between the running wheels, the design utilizes the lateral space that would otherwise be underutilized, thereby avoiding occupation of the central portion while maintaining effective power transmission.
2Power
If the electric motor is disposed in the central portion of the bogie body, then the drive force can be transmitted to the running wheels, but the bogie body becomes less adaptable for equipping other devices
Solution Approach 1:
The power transmission system is segmented into multiple independent motor units distributed across the bogie body. Each motor unit can independently transmit drive force to adjacent running wheels, maintaining the necessary propulsion function while distributing the mechanical components throughout the structure. This segmentation creates open central space that enhances adaptability for mounting sensors, batteries, or other auxiliary devices.
Solution Approach 2:
The distributed motor configuration serves multiple functions simultaneously: it provides drive force transmission to the running wheels, frees up central space for other devices, and creates a modular architecture that can accommodate various auxiliary systems. This multi-functional arrangement improves the overall versatility of the bogie body design.
Data Source
AI summary
This bogie and vehicle is provided with: a bogie body; a pair of travel wheels disposed on both sides of the bogie body in a direction intersecting with the traveling direction and capable of rolling motion on the traveling road surface of a track; a guide device guided along a guide rail and rotatably supported to the bogie body about the axial line along a vertical direction; and a pair of motors disposed between the pair of travel wheels of the bogie body and transferring a drive force to the pair of travel wheels.