Vertical-Plane Track Switching for Shock-Free Transit Carriages
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Solution Overview
Problem
Conventional Personal Rapid Transit systems experience passenger discomfort and mechanical shocks during high-speed trajectory changes due to horizontal or vertical switching, which disrupts continuous motion and throughput.
Innovation Solution
A transport system with a simplified wheel-axle assembly and track configuration allows vehicles to switch trajectories seamlessly in a vertical plane using a scissor mechanism and electrically actuated guide wheels, maintaining continuous motion and passenger comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If horizontal or vertical switching is used for trajectory change, then the vehicle can diverge from and merge into tracks, but mechanical shocks and passenger discomfort occur during high-speed operation
Solution Approach 1:
The patent transitions from conventional horizontal plane switching to vertical plane switching. The vehicle moves from one track to another by changing its vertical position through a switching mechanism that operates in the vertical dimension, allowing seamless trajectory change without mechanical shocks or passenger discomfort during high-speed operation.
2Adaptability or versatility
If conventional switching mechanisms are used, then track divergence and merging is enabled, but the number of mechanical parts increases and integration becomes complex
Solution Approach 1:
The patent employs a universal switching mechanism that handles both track divergence and merging operations through a single integrated system. The vertical plane switching mechanism serves multiple functions: it enables vehicles to leave the main track, enter secondary tracks, and return to the main track, eliminating the need for separate mechanical assemblies for each operation.
Solution Approach 2:
The patent extracts the switching function from complex mechanical assemblies and implements it through a simplified vertical plane mechanism. By removing unnecessary mechanical components and focusing on essential vertical movement, the system achieves track switching with minimal parts while maintaining full adaptability for divergence and merging operations.
3Ease of operation
If horizontal switching is used, then trajectory change is achieved, but space consumption on the horizontal plane increases
Solution Approach 1:
The patent resolves the space consumption issue by moving the switching operation from the horizontal plane to the vertical plane. This dimensional transition allows trajectory changes to occur without consuming additional horizontal space, as the vehicle switches tracks by moving vertically rather than horizontally, thereby optimizing space utilization in the horizontal plane.
Data Source
AI summary
The present invention relates to the field of automated transportation systems. Particularly, it relates to a transportation system comprising guide-ways or tracks, vehicle units [100, 100a] with wheel-axle assembly for switching of vehicles from primary [20] to secondary track [22] on changing trajectory to maintain same vertical plane and the method. It comprises of central controller [101], vehicle chassis with main wheels [2W], guide wheels [4iw, 4ow], guide blocks [05, 06], actuator [09]. The chassis [30] has set of contractible axles fixed to wheels [2W] to enables movement from primary [20] to secondary track [22] by withdrawing the wheels [2W] from expanded position [C] to contracted position [C] or vice-versa. The forces required to compress the spring loaded axle axis is derived from inner guide wheels rolling over the edge flange [26] when swung using single linear motor actuator [09] and related electronic controls.