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

Claim 18:
19. A motor vehicle comprising:
a set of road wheels;
a vehicle body connected to the set of road wheels; and
an electric propulsion system connected to the set of road wheels and the vehicle body, including:
a polyphase rotary electric machine having a set of phase leads and an output member, the output member being connected to the set of road wheels and configured to impart a motor torque to the set of road wheels;
a rechargeable energy storage system (“RESS”) that is electrically connected to the polyphase rotary electric machine, including:
a plurality of battery modules; and
a switching circuit having a plurality of switches and configured, in response to first or second electronic switching control signals, respectively, to selectively connect the plurality of 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 and programmed with mode-specific electrical loss information associated with the desired drive mode, wherein the controller is configured to receive the operator-requested drive mode request via the user interface device during the desired drive mode, to select one of the P-connected configuration or the S-connected configuration via control of the switching circuit in response to the operator-requested drive mode request, and to present a drive mode recommendation and an expected electric range and power penalty or bonus for the drive mode recommendation based on the mode-specific electrical loss information via the user interface device when the mode-specific electrical loss information exceeds a calibrated loss threshold.