Model in the Loop (MiL) CT-AUT Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A test engineer is executing a MiL test for a suspension control model. The test harness is set up to provide road profile inputs and measure body acceleration. During the simulation, the model runs but the body acceleration output is always zero. What is the most likely cause?

   • AThe road profile input is not connected to the model
   • BThe simulation time step is too large
   • CThe model is not being executed at all
   • DThe model is functioning correctly and the body acceleration is truly zero
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which of the following is a typical component of a Model in the Loop (MiL) test environment?

   • AA physical test bench with actuators and sensors
   • BA real-time hardware controller
   • CA simulation platform that executes the model
   • DA target microcontroller with the compiled code
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   After running a MiL simulation for an engine control unit (ECU) model, the test engineer has a set of output signals. To evaluate the model's performance, which analysis is most appropriate?

   • AVerify that the model compiles without errors
   • BEnsure the model uses the minimum number of blocks
   • CCheck the model's execution time on the host PC
   • DCompare the model's outputs against reference values from a validated simulation or analytical solution
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   After running a MiL test for a transmission control model, the test engineer has a set of output signals. The engineer needs to determine if the model's shift schedule is correct. Which analysis is most appropriate?

   • AEnsure the model uses the minimum number of blocks
   • BVerify that the model compiles without errors
   • CCompare the shift points against the expected shift schedule from the requirements
   • DCheck the model's execution time on the host PC
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A project manager is deciding between MiL and HiL testing for a new steering system. The team has a tight budget and needs to test many edge cases early. Which statement correctly reflects a benefit of MiL over HiL?

   • AMiL allows testing without physical hardware, reducing cost and enabling earlier validation
   • BMiL eliminates the need for any further testing
   • CMiL is faster than real-time, so it can test more scenarios in less time
   • DMiL provides the highest fidelity of the real system
   Reveal Solution Discussion Select an answer first