Road load data acquisition pdf

  • Accelerometers, Force Sensors, Strain Sensors, Load Cells, and Signal Conditioners.
  • Road load data acquisition (RLDA) is an excellent method for measuring the precise vehicle response either on public roads in the anticipated market or on proving grounds by replicating specific driving profiles.
    And as such is a critical starting point for successful vehicle durability engineering.
Road Load Data Acquisition (RLDA). Typical steps. Instrumentation. Test engineer. Test • Manual data clean-up is time-consuming and sensitive to human 

How is Road Load Data constructed?

For each selected road load event, a much shorter duration load data is then constructed, by iteratively searching and truncating a segment from the original measured load time history, based on the proposed technique.

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How TEDs Data Acquisition System Works?

The data acquisition systems implement TEDS sensor technology.
Connected sensors equipped with TEDS will be automatically recognized and configured.
R8rt system and SIRIUS modular can be used to record the data on the real roads or proving ground and also in the lab to replay the recorded data on the road simulator.

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What is the frequency spectrum of road load events?

The frequency spectrum and statistical characteristics of each road load event are first established from the measured proving ground data, by using the fast Fourier transform and power spectral density techniques.

Road surface term

Road surface textures are deviations from a planar and smooth surface, affecting the vehicle/tyre interaction.
Pavement texture is divided into: microtexture with wavelengths from 0 mm to 0.5 millimetres (0.020 in), macrotexture with wavelengths from 0.5 millimetres (0.020 in) to 50 millimetres (2.0 in) and megatexture with wavelengths from 50 millimetres (2.0 in) to 500 millimetres (20 in).

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