Software in the Loop (SiL) CT-AUT Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A team is testing a new infotainment system software. They have a SiL environment with a model of the display and audio system. They also have a HiL environment with the physical infotainment unit. The team needs to run a test that checks the software's response to a rapid sequence of user inputs, such as button presses, with realistic timing. Which environment is more appropriate for this test, and what is the key reason?

   • ASiL, because it does not require the physical unit, so it is safer
   • BHiL, because it is always cheaper than SiL
   • CHiL, because it uses the real infotainment unit and can accurately reproduce the timing of user input processing
   • DSiL, because it is faster and can run more test cases in the same time
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   How does SiL testing support the verification of automotive software functions?

   • ABy testing the software's resistance to physical stress.
   • BBy running the software on the target ECU and measuring its performance.
   • CBy simulating the software's behavior in a virtual environment to check if it meets requirements.
   • DBy installing the software in a prototype vehicle.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What is the purpose of the simulation model in a SiL test environment?

   • ATo compile the software under test.
   • BTo replace the software under test.
   • CTo store test results.
   • DTo simulate the behavior of the vehicle and its environment.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A team is developing a new electronic stability control (ESC) system. They have a SiL environment that runs the full test suite in 20 minutes. They are considering moving to a HiL environment with the physical ESC unit. The team's main goal is to find software logic defects as early as possible in the development cycle. Which environment is more appropriate for this goal, and why?

   • AHiL, because it provides more realistic sensor signals
   • BHiL, because it is faster than SiL
   • CSiL, because it is always more accurate than HiL
   • DSiL, because it can be used early in development when hardware is not yet available
   Reveal Solution Discussion Select an answer first
6. 20application · medium

   During the V-model development of an automotive software component, a team wants to verify the software function logic as soon as the code is compiled, before integrating it with other components or hardware. Which phase of the development lifecycle is the most appropriate for applying SiL testing?

   • ASoftware component testing on the left side of the V-model
   • BField testing with beta customers
   • CSystem integration testing on the right side of the V-model with full vehicle hardware
   • DProduction release validation after the vehicle is manufactured
   Reveal Solution Discussion Select an answer first