CONTROL TECHNIQUES FOR ACTIVE DISCHARGE OF HIGH VOLTAGE CAPACITOR THROUGH VEHICLE ELECTRIC MOTOR WINDINGS

An active discharge control method for an electrified vehicle includes providing an electric drive module (EDM) configured to generate drive torque for propulsion of the electrified vehicle, the EDM comprising a power inverter module (PIM) and an electric motor having a plurality of windings, wherein the PIM comprises a capacitor connected between the electric motor and an energy storage system (ESS) of the electrified vehicle, generating, by a control system of the electrified vehicle, direct and quadrature current commands, for controlling the EDM, using an unmodified maximum torque per amperage (MTPA) look-up table (LUT) and a torque command based on a driver torque request, and, in response to a discharge request for the capacitor, modifying, by the control system, at least one of the direct and quadrature current commands to cause a voltage of the capacitor to discharge through the plurality of windings of the electric motor.