Patent 10315643 was granted and assigned to Oshkosh Defense on June, 2019 by the United States Patent and Trademark Office.
A method of operating a first electric machine and a second electric machine in a vehicle drive includes operating the vehicle drive in: a first operating mode by operating the first electric machine in a voltage mode and the second electric machine in a torque mode; and a second operating mode by operating the first electric machine in the torque mode and the second electric machine in the voltage mode.