Regenerative Braking
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
When the vehicle is coasting or braking the HPCM may operate the drive motor generators in an electrical generation mode. Operating as electrical generators, the drive motor generators exert a driveline load that helps to slow the vehicle. The electrical energy that the drive motor generators create is transferred by the drive motor generator power inverter module (PIM) to the drive motor generator battery assembly (hybrid batteries). Constant communication between the HPCM and the electronic brake control module (EBCM) allows the blending of regenerative braking force with hydraulic braking force.