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HOME > HSEA Technology > Vehicle Diagnostics

ANALYSIS
INTRODUCTION

Introduction to Analysis using the HSEA model

01

Vehicle Diagnostics

Input contribution

Visualization of the Input origin whether it is vibration or acoustic contribution, and what is the main contributor.

Input contribution 01

Above the red line: acoustic contribution

Input contribution 02

Below the red line: vibration contribution

Input contribution 03

Above the red line: acoustic contribution / Below the red line: vibration contribution

Output contribution

Visualization of where the sound can be heard in the car, and determine effective countermeasure areas.

Output contribution 01
Output contribution 02
Output contribution 03

Power flow

Visualization of where the sound can be heard in the car, and determine effective countermeasure areas.

Power flow 01

Main Power flow of engine noise (315Hz)

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Power flow 02

Energy Transmission Loss(ETL)

An evaluation metric for the performance of reducing the sound of a speaker excited in the sound source cavity before it reaches the sound receiving cavity.

Dismantle the vehicle into about 25 systems and evaluate their performance

Energy Transmission Loss(ETL)01
Energy Transmission Loss(ETL)02

Investigation of soundproof
materials performance

The performance of each soundproof material can be evaluated because information on soundproof materials is set.

It is possible to evaluate the Insertion loss and the Absorption coefficient:α,etc. of the soundproof materials because detailed material information is also set.

Investigation of soundproof materials performance 01
Investigation of soundproof materials performance 02
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