Circuit/System Description
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Each drive motor generator is controlled by a motor control module (MCM). The drive motor generators utilize 3 phase alternating current (AC) electricity. The drive motor generator stator coil is comprised of three phase circuits. The phase circuits are identified as phase U, phase V and phase W. The U-V-W phase circuits are connected in a wye configuration. This means each phase is connected at a single, central point. The MCM monitors a current sensor connected to each drive motor generator phase.