Vehicle Brake Caliper Coupling Structure for Rigidity Under Load

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Solution Overview

Problem

The caliper body in electro-mechanical brake systems may deform under applied load, affecting braking performance.

Innovation Solution

A brake apparatus with a cylinder, caliper body, driver, and coupling members that ensure the rigidity of the caliper body by distributing shear loads through suspension portions and flanges, minimizing deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the caliper body is designed to generate braking force, then braking function is achieved, but the caliper body deforms under applied load

Engineering Contradiction:
Improvebraking forceVSAvoidcaliper body rigidity
Core Design Contradiction:
ForceVSStrength

Solution Approach 1:

The coupling structure is divided into multiple coupling members (first coupling members and second coupling members) that connect the cylinder to the caliper body at different locations and directions. This segmentation distributes the applied load across multiple connection points, preventing concentration of stress on a single structure and reducing overall deformation of the caliper body.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The suspension portions and flanges are combined to form an integrated load-bearing structure. The suspension portions protrude from the caliper body and connect with the flanges on the cylinder, creating a unified structural system that works together to resist applied loads and maintain caliper rigidity during braking.

Inventive Principle:
Principle #5Merging (Combining)

2Stability of the object's composition

If multiple coupling members and suspension portions are added to ensure rigidity, then caliper stability is improved, but device complexity increases

Engineering Contradiction:
Improvecaliper stabilityVSAvoidcoupling structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The coupling members serve multiple functions: they connect the cylinder to the caliper body, distribute applied loads, and maintain positional relationships between components. The suspension portions simultaneously provide structural support and load distribution. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The coupling structure utilizes multiple dimensions by having first coupling members connect in a first direction and second coupling members connect in a second direction. This multi-directional arrangement provides stable connection and load distribution in three-dimensional space, achieving high stability without requiring an excessive number of components in a single plane.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The solution enhances braking performance by maintaining caliper rigidity under load, preventing deformation and ensuring consistent braking action.

Implementation Method 1

These components bear a shear load when the caliper body generates braking force, thereby minimizing the load applied to the coupling member

Methodology Applied
Scientific EffectShear stress: Shear Stress

Implementation Method 2

One or more damper members, which are interposed between the cylinder and the caliper body and are elastically deformable

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20250043835A1Brake apparatus for vehicle
Publication Date: 2025.02.06 HYUNDAI MOBIS CO LTD
  • US20250043835A1 patent drawing
  • US20250043835A1 patent drawing
  • US20250043835A1 patent drawing

AI summary

A brake apparatus for a vehicle includes a cylinder housing a piston, a caliper body disposed on the outer side of the cylinder and surrounding a portion of the cylinder, a driver coupled with the cylinder and generating driving force to move the piston, and a coupling member coupling the cylinder with the caliper body.