Vehicle Brake Wire Double Crossover Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional parking brake systems face challenges in minimizing vertical space requirements while maintaining high durability and efficiency, often resulting in performance issues and increased noise due to the need for large supporting structures and separate wire paths.
Innovation Solution
A parking brake system design featuring two parallel brake wires that cross over each other twice, with covers to minimize vertical space and reduce noise, allowing for a large radius of curvature and efficient force transmission to rear wheel brakes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate paths are used for each parking brake wire, then wire durability is improved, but vertical space requirements increase
Solution Approach 1:
The patent merges the paths of the first and second parking brake wires by routing them through a common supporting structure with shared support portions. This consolidation allows both wires to be guided separately (maintaining durability) while sharing common support elements (reducing vertical space requirements).
Solution Approach 2:
The patent implements a nested arrangement where the first and second parking brake wires are routed through overlapping supporting structures. The wires pass through support portions that are vertically staggered, with one wire's support portion positioned above or below the other, creating a compact nested configuration that reduces overall vertical space.
2Productivity
If large radius of curvature is maintained for brake wires, then wire efficiency is improved, but vertical space requirements increase
Solution Approach 1:
The patent transitions from a single-plane wire routing to a three-dimensional arrangement where wires are routed in vertically staggered planes. The supporting structures are positioned at different vertical levels, allowing the wires to maintain large radius of curvature while fitting within a compact vertical envelope by utilizing the third dimension.
Solution Approach 2:
The patent employs flexible wire covers that can accommodate the curved paths of the brake wires. These covers protect the wires while allowing them to maintain their required radius of curvature, and the flexible nature allows compact packaging within limited vertical space.
3Reliability
If supporting bracket structure is added to guide wires, then wire durability is improved, but noise and abrasion increase
Solution Approach 1:
The patent uses flexible wire covers as the primary guiding and protective element instead of rigid supporting brackets. These flexible covers reduce noise by dampening vibrations and reduce abrasion by providing a smooth, compliant surface that the wires can slide against, while still maintaining wire durability through protection.
Solution Approach 2:
The patent employs composite wire cover structures that combine materials with different properties to achieve both durability and noise reduction. The composite construction allows the cover to provide mechanical support and guidance while incorporating noise-dampening and low-friction surfaces.
Data Source
AI summary
A brake system for a vehicle can include a brake actuator, an equalizer operably connected to the actuator, and two brake wires that are each connected to the equalizer and extend to first and second brake assemblies. The first and second brake wires can extend in a first direction extending from a front of the vehicle toward a rear of the vehicle. The first brake wire can cross over the second brake wire at least once and possibly twice, each time in a direction transverse to the first direction. Additionally, the first and second brake wires can each include a cover that protects a respective wire. The covers can be in contact with each other at the crossover point for the wires to minimize noise, friction and to improve operating ability and durability of the brake wires. The various features, such as the cross-over configuration, the contacting wires, and/or the covers, also make it possible to minimize the space requirements for the wires in the vehicle.