SLIP DETECTION AND MITIGATION FOR AN ELECTRIC DRIVE POWERTRAIN HAVING A HIGH RATIO TRACTION DRIVE TRANSMISSION

A method of controlling a continuously variable electric drivetrain (CVED) including a high ratio traction drive transmission and at least one of a first motor-generator and a second motor-generator is disclosed. The method includes the steps of receiving an output speed, determining a kinematic output speed, and determining a slip state of the high ratio traction drive transmission based on a comparison of the output speed to the kinematic output speed.