BrakeOBSERVER – Mobile detection of brake noise

BrakeOBSERVER – Mobile detection of brake noise

The BrakeOBSERVER software detects brake noise and records and evaluates it. This allows... 

The BrakeOBSERVER software detects brake noise and records and evaluates it. This allows eliminating undesirable background noise in the development stage already. The MMF III recording hardware acquires all necessary data for brake examination while driving. The hardware system is automatically initiated when starting the vehicle. The recording starts as soon as noise occurs. Required sensors can be connected to the MMF III via individually configurable interfaces.

The number of channels can also be increased via the following HEADlab modules:

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The BrakeOBSERVER software detects brake noise and records and evaluates it. This allows eliminating undesirable background noise in the development stage already. The MMF III recording hardware acquires all necessary data for brake examination while driving. The hardware system is... 

The BrakeOBSERVER software detects brake noise and records and evaluates it. This allows eliminating undesirable background noise in the development stage already. The MMF III recording hardware acquires all necessary data for brake examination while driving. The hardware system is automatically initiated when starting the vehicle. The recording starts as soon as noise occurs. Required sensors can be connected to the MMF III via individually configurable interfaces.

The number of channels can also be increased via the following HEADlab modules:

More Less

Psychoacoustic analyses facilitate reliable detection

Psychoacoustic analyses provide the basis for detection algorithms in the BrakeOBSERVER software. These analyses are level independent and consider human hearing. The advantage of this approach is that BrakeOBSERVER reliably detects even low, yet easily perceptible brake noise. Different analysis algorithms make sure to detect various types of sound events:

  • The Relative Approach algorithm is suitable for detecting tonal sound – such as tonal brake squealing – irrespective of the level, even when embedded in ambient noise.
  • Using the Impulsiveness vs. Time analysis, the system detects impulsive sounds such as creaking, clattering and crackling.

Alongside the targeted recording of background noise, the system also continually charts all relevant parameter data such as temperature, brake pressure, air humidity and acceleration. This data is available for the subsequent assessment of sound results. The Noise Event Manager software is suitable for evaluating the measured data and compiling corresponding reports.

Highlights

  • Software and hardware combination for the comprehensive examination of brake noise
  • Detection of tonal and impulsive sound samples including off-brake noise
  • BrakeOBSERVER provides initial feedback already during test driving
  • Flexible storage options: non-critical brake recordings can be optionally backed up

Applications

  • Brake development and brake testing both in test driving and on test bench
  • Optimizing brake noise

Features

BrakeOBSERVER software:

  • Detection of brake noise using special algorithms
  • Extremely flexible thanks to freely configurable software interface
  • Various trigger options including off-brake noise trigger
  • Easy operation: Clear and intuitive
  • Evaluation of brake noise during measurement
  • Charting of GPS data together with brake results and associated parameters
  • Evaluating results with Noise Event Manager software

MMF III hardware:

  • Mobile measurement system for BrakeOBSERVER
  • Ignition interface (starting and stopping via ignition or switch)
  • HCP or HCP II mini display: control panel for interacting with system while driving
  • Integrated docking station for Toughbook Panasonic CF-33

Variants

Channel expansion

  • BrakeOBSERVER tool pack BOTP 01 (code 4965) for connecting HEADlab modules
 

MMF III.0-V1

  • Multi-channel front end with assembly platform for connecting own computer
 

Relevant Products

Sound & Vibration
Noise Event Manager
(4963)
Modular & Scalable
HEADlab Modules
(3702-3742)
Sound & Vibration
HEAD Companion
(4906)
Modular & Scalable
HEADlab
(3700)