software testing
the layout of components, wiring and
connectors. This setup permits an in-depth
examination of the entire system with all
components under realistic conditions.
There are also two smaller test systems,
the Functional Integration Bench (FIB) and
the Integration Test Rig (ITR). Unlike the
STR, the FIB contains far fewer original
CIDS components. Instead, it focuses on the
connections to CIDS external systems. In
the third test system, the ITR, the focus is
on integration tests of new, individual
hardware components in a system
environment that is nearly fully simulated.
In the third test system, the ITR, the focus
is on integration tests of new, individual
hardware components in a system
environment that is nearly fully simulated.
All test benches follow the same
philosophy in their design, layout and user
control. Most of the test equipment is
identical, as are the user control software
2
94 SHOWCASE 2020 \\ AEROSPACETESTINGINTERNATIONAL.COM
and simulation software. This enables
uniform handling, user control and
programing. It also saves time and expense
in introducing employees to the system
and training them. The relatively large
number of shared parts even made it
possible to set up small-lot production of
components for FFT that are used
regularly. A total length of 20 kilometers
of electrical wiring was installed in
this project.
STARTING POINT
Vector’s CANoe software is used as the test
and simulation software. CANoe serves as
a platform for executing the tests,
displaying test reports as well as for
implementing the remaining bus
simulation and FFT environment
simulation for the system under test. The
VT System is ideally tailored for this,
providing the measurement hardware,
interfaces and switching units. This tool
makes it possible to artificially generate
fault situations such as short circuit, line
break or power failure. The tool
vTESTstudio assists in creating the test
cases, and it offers various methods for
doing this. Testing personnel can create
the test cases conventionally using a
programming language like C#, or they can
code via a graphical user interface, or they
can set up the test procedure in
spreadsheet format.
These tools are standard products that
have proven themselves in numerous
development projects in the automotive,
aerospace, rail and commercial vehicle
industries. However, by themselves they
cannot solve the problem of dealing with
the numerous different variants of cabin
systems. In the effort to attain a high level
of test automation and wide-ranging
re-usability, it should be possible to apply
1 // Caption here xxx
xxxxx xxx xxxxxxx
2 // System test rig with
cabin ceiling and control
desk (Photo: Airbus /
Michael Bahlo)
/AEROSPACETESTINGINTERNATIONAL.COM