DEVELOPED FOR THE BRAKE SPECIALIST, BUT AVAILABLETODAY FOR EVERYONE
WHO IS RESPONSIBLE FOR VEHICLE TESTING
Measuring and analysing test data is becoming a full days work for many
engineers working in the automotive world. Storing of all this data is more
and more common.
Data which is required can be consulted or re-printed at all times. VLT
Brake DataŽ is available in different modules just for storing the test
results of cars, light goods vehicles and buses. For these vehicles which
mainly have no large difference in unladen and laden condition, we offer the
VLT Brake DataŽ Windows, a simple solution giving all the information you
need.
For those vehicles which have a greater difference in unladen and laden
weight, like heavy goods vehicles, trailers, etc. we have the VLT Brake
DataŽ Corridor Windows. This program measures the brake efficiency as tested
normally unladen.
The air pressure in the brake cylinder is measured at the locking point of
the wheelbrakes. The axle weight is stored and the computer makes the
calculation from the measured values still in unladen condition of the
vehicle. But we also need to calculate the brake efficiency in laden
condition without having the vehicle laden.
This calculation is made by the computer by extrapolation of the air
pressure value mostly up to 6 BAR = 85 PSI. At this point we calculate the
relation between the air pressure at unladen weight in the brake cylinders
at 6 BAR.
The computer calculates the total available brake force divided by the gross
vehicle weight. This is the total weight of the vehicle in fully laden
condition. The outcome is the brake efficiency in percentage of the gross
vehicle weight.
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