On-board charging system for an electric vehicle

An on-board charging system for an electric vehicle, the on-board charging system comprising:

• a direct current (DC) battery;
• a bidirectional inverter configured to convert AC power to DC power and to convert DC power to AC power, the bidirectional inverter is selectively connected to the DC battery by propulsion switches;
• an AC motor connected to the bidirectional inverter and selectively connected to a charging port by a first charging switch, wherein the charging port receives AC power during a charging mode;
• an isolated DC/DC converter motor selectively connected to the DC battery via a second charging switch and a third charging switch;
• and
• a processor configured to control operation of the propulsion switches, the first charging switch, the second charging switch, and the third charging switch based on an operational mode of the electric vehicle.

An electric vehicle comprising:

• a charging port configured to receive an alternating current (AC) power;
• a direct current (DC) battery;
• a bidirectional inverter configured to convert AC power to DC power and to convert DC power to AC power, the bidirectional inverter is selectively connected to the DC battery by propulsion switches;
• an AC motor connected to the bidirectional inverter and selectively connected to the charging port by a first charging switch;
• an isolated DC/DC converter motor selectively connected to the DC battery via a second charging switch and a third charging switch;
• and
• a processor configured to control operation of the propulsion switches, the first charging switch, the second charging switch, and the third charging switch based on an operational mode of the electric vehicle,
• wherein during an active state of the electric vehicle, the processor causes the propulsion switches to be in a closed position and the first charging switch, the second charging switch, and the third charging switch to be in an open position, and
• wherein during a charging state of the electric vehicle, the processor causes the propulsion switches to be in an open position and the first charging switch, the second charging switch, and the third charging switch to be in a closed position.