A growing trend in the automotive market is the addition of advanced driver assistance systems (ADAS) to new vehicles. These ADAS features could be technologies such as lane departure warnings, emergency braking, or adaptive cruise control, all aimed at making vehicles safer and more comfortable to drive.
In addition to making vehicles safer and more comfortable, vehicle manufacturers are striving to make their vehicles more fuel efficient. We have seen that these two trends are causing a shift in the typical design process, where powertrain and vehicle departments are working more closely together than ever.
At the system level, even forecasting fuel economy demands an integrated, collaborative approach between powertrain and vehicle teams. To explore how this approach might work, we teamed up with Mechanical Simulation Corporation, the developers of CarSim.
Through open-source co-simulation provided by the Functional Mockup Interface (FMI), we were able to implement a workflow to couple powertrain and vehicle models in GT-SUITE and CarSim, respectively.
This allows engineers to predict complex phenomena, such as how a calibration of adaptive cruise control or traffic conditions might affect fuel economy, in a repeatable fashion, all virtually.