Patent ID: 11870302
Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 5:
6. A method for an electric motor with two or more sections, comprising:
in response to a transition of operation of the electric motor from one region of an efficiency map to another region of the efficiency map,, transitioning from operating the electric motor with each section of the two or more sections active to operating the electric motor with at least one section inactive by first mechanically decoupling the at least one section from remaining sections of one or more sections and then electrically decoupling the at least one section from the remaining sections, the one region of the efficiency map calibrated as one function of speed and torque of the electric motor, and the other region of the efficiency map calibrated as another function of speed and torque of the electric motor.