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NVH Consulting - Overview
  Consulting    NVH Division    Methods/ Tools     Brake Noise Detection and Analysis
NVH Consulting - Brake Noise Detection and Analysis
Due to the fact that high warranty costs may be caused by the occurrence of brake noise like brake squeal (>1 kHz) and moan (<1 kHz) the noise performance plays a significant role in the development process of brake systems.
Reproducing these typical annoying brake noise phenomena is often extremely difficult since the noise occurrence depends on a wide variety of ambient conditions. This leads to test procedures that consume a lot of time and are thus very expensive. However, with the    HEAD BrakeOBSERVER test system and the    HEAD Noise Event Manager evaluation and documentation software, HEAD Consult NVH is able to provide and use powerful tools that can help to efficiently solve the described test tasks.
Both, the complete execution of the brake test procedure for any customer vehicle as well as extensive support for users of the
  HEAD BrakeOBSERVER test system in order to assist with
 
  BrakeOBSERVER
Test system for brake noise
brake tests, can be provided as consulting services from our experienced brake noise consulting team.
Screenshot    HEAD Noise Event Manager
Summarized presentation of test results
 
During the test procedures the relevant sections of the long term recordings that include typical annoying brake noise patterns are identified and extracted using an automatic detection algorithm based on a psychoacoustic approach.
The fast feedback of the detection process allows optimizing the test drives with respect to the annoying patterns. At the end of the test drives, the results of all relevant brake incidents may be summarized and classified using the    HEAD Noise Event Manager; achieving a fast overview about the acoustic quality of the investigated brake system and the dependency of brake noise patterns on all measured ambient conditions.
Also listening of the recordings and deeper analysis of the results is easily possible.
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