Motor Power Inverter (MPI) Module
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
The MPI module converts 100 V DC power into 3-phase AC power to run the electric motor during assist.
During regeneration, the MPI module converts AC voltage to DC.
The MPI module is air cooled. The heat from the heat sink is exhausted to the cargo area by the IPU module fan.