Structure Analysis

Step 2 of 7 - AIAG-VDA FMEA

Component Structure Breakdown

Vehicle Braking System

System Level • ID: SYS-001

Hydraulic Brake Assembly

Subsystem Level • ID: SUB-101

Master Cylinder

Component Level • ID: COMP-1011

Brake Lines

Component Level • ID: COMP-1012

Brake Fluid Reservoir

Component Level • ID: COMP-1013

Wheel Brake Assembly

Subsystem Level • ID: SUB-102

Electronic Control Unit

Subsystem Level • ID: SUB-103

Component Relationships

Define the relationships between components to establish the functional structure.

Master Cylinder Relationships

Related Component	Relationship Type	Description	Actions
Brake Lines COMP-1012	Provides Input To	Master cylinder provides hydraulic pressure to brake lines
Brake Fluid Reservoir COMP-1013	Receives Input From	Master cylinder receives brake fluid from reservoir

Component Relationship Tips

Define relationships between components to better understand system interactions and potential failure modes.

Component Details

Master Cylinder

COMP-1011

Component Type

Mechanical Component

Description

The master cylinder converts mechanical force from the brake pedal into hydraulic pressure to activate the brake system.

Critical Characteristics

Safety Critical High Pressure

Component Properties

Material

Operating Temperature Range

Maximum Pressure

Notes

AIAG-VDA FMEA Process

Step 1: Planning & Preparation

Define scope, assemble team, and prepare for FMEA

Step 2: Structure Analysis

Identify and analyze system structure and components

Step 3: Function Analysis

Define functions of components and system

Step 4: Failure Analysis

Identify potential failure modes and effects

Step 5: Risk Analysis

Evaluate severity, occurrence, and detection

Step 6: Optimization

Define actions to reduce risk

Step 7: Documentation

Document results and prepare final report