HiL testing involves connecting a system under development, such as electronic control for a vehicle or an industrial control system, to a real-time simulator. The simulator replicates the behavior of the surrounding system and provides realistic inputs to the development system.

It enables testing in a controlled and repeatable environment, reproducing complex scenarios and operating conditions challenging to achieve in real-world tests. In addition, it allows to minimize the need for expensive hardware prototypes to test software, allowing the identification and resolution of issues during the development phase.

HIL testing has become a crucial element in the development of complex systems, providing a more efficient and reliable approach to verifying the functionality and performance of embedded systems.

The aim of this first activity was to calibrate the bench at best.

Then, starting from this calibration of the EPSiL bench, a new steering rack has been developed and fine-tuned. The calibration was performed using numerical evaluation and the human perception of a real professional driver.

The aim of the second study was to model and test an innovative AEB control logic that will increase system reliability by compensating for the non-immediate response of brake system to brake requests.

The effectiveness of the control logic has been tested on two different braking system:

     1. Two CBAs ,installed on an experimental vehicle, were directly integrated into the simulation loop

     2. A stock brake system unit integrated into the static simulator

Hardware in the loop technique has been fundamental to reproduce as accurately as possible the response of the braking system to AEB triggering.

The developed controller demonstrates high reliability as it guarantees the same performance acting on two different brake systems without the need of tuning activities.