Operating Functions
WARNING: This page is about a different car, the 2009 GMC Yukon, 2009 Chevrolet Tahoe, and 2009 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Each MCM operates the applicable electric motor generator based upon HPCM commands. Each MCM controls the speed, direction and output torque of its respective traction motor through the sequencing actuation of high current switching transistors called insulated gate bipolar transistors (IGBTs).