Gm Global Technolgoy Operations, Inc.

Jeffrey Wentz Yambor

Scott E Parrish

Wei Zeng

Steven Lee Hayslett

Young J Kim

A method for predicting a rotor temperature of an electric motor for an electric vehicle. The method includes measuring at least one of an operating parameter of the electric motor; inputting the at least one of the operating parameter of the electric motor into a predetermined regression model to predict a rotor temperature of the electric motor; and communicating the rotor temperature of the electric motor to a vehicle control module for managing the electric motor. The operating parameters includes a measured stator temperature, a torque level output, a rotor speed, and a coolant flowrate of the fixture electric motor. The electric motor may be that of an induction motor.

Method of rotor temperature prediction for an electric motor

A number of variations may include a cable movement detector for determining a movement of a cable. A light source may be directed at the cable. A light detector may receive a reflection of the light source from the cable.

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Clawson, MI, United States of America

Jeffrey Wentz Yambor