A Model in the Loop (MIL) test system enables the engineer to build a realistic model and replace an ideal model in the simulation with his own more realistic build and afterwards test it and improve it continuously.
To complete a realistic Model, the following is required:
Vehicle Dynamics Software to simulate dynamics of the vehicle, as well as sensor locations and driving behavior
Scenario Simulation Software to simulate the environment of Road, Traffic, Obstacles, and other environmental influences
High performance processing power
Test Automation
MIL test is only one of the steps in the developing process and once the Model is successfully tested the next step is to integrate some real Hardware and continue testing it with selected hardware components