Patent ID: 11872906
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. An electric propulsion system comprising:
a rotary electric machine having an output member connectable to a driven load, wherein the output member is configured to impart an output torque from the rotary electric machine to the driven load;
a rechargeable energy storage system (“RES S”) that is electrically connected to the rotary electric machine, including:
multiple battery modules; and
a switching circuit configured, in response to a respective first or second electronic switching control signal, to selectively interconnect the multiple battery modules in a parallel-connected (“P-connected”) configuration or a series-connected (“S-connected”) configuration;

a user interface device configured to receive an operator-requested drive mode request indicative of a desired drive mode of the electric propulsion system; and
a controller in communication with the user interface device and programmed with mode-specific electrical loss information associated with the desired drive mode, wherein the controller is configured to select and establish the P-connected configuration or the S-connected configuration, as a selected battery configuration via the first or second electronic switching control signal, in response to the operator-requested drive mode request, and to selectively present a drive mode recommendation via the user interface device when the mode-specific electrical loss information exceeds a calibrated loss threshold.