Multi-port multi-battery pack charging for vehicles

A vehicle comprising:

• a first battery pack chargeable by at least one of a first charging port or a second charging port;
• a second battery pack chargeable by at least one of the first charging port or the second charging port;
• an auxiliary device generating an accessory load;
• a plurality of switches comprising:
• a first switch electrically connected to the first charging port;
• a second switch electrically connected to the second charging port;
• a third switch electrically connected between the first switch and the second switch;
• a fourth switch electrically connected between the first battery pack and the auxiliary device generating the accessory load;
• and
• a fifth switch electrically connected between the second battery pack and the auxiliary device generating the accessory load;
• and
• a controller to:
• determine a charging mode of the vehicle, wherein the charging mode is selected from a group consisting of a dynamic balancing during independent multi-port charging mode, a dynamic balancing during independent port charging mode, or a dynamic balancing during parallel charging mode;
• and
• configure the plurality of switches based at least in part on the determined charging mode,
• wherein the controller balances the accessory load of the auxiliary device between the first battery pack and the second battery pack by selectively opening the fourth switch and closing the fifth switch for a first period of time and selectively opening the fifth switch and closing the fourth switch for a second period of time.

A method comprising:

• determining, by a controller of a vehicle, a charging mode of the vehicle, wherein the charging mode is selected from a group consisting of a dynamic balancing during independent multi-port charging mode, a dynamic balancing during independent port charging mode, or a dynamic balancing during parallel charging mode, wherein the vehicle comprises a first battery pack and a second battery pack, wherein at least one of the first battery pack and the second battery pack are chargeable by at least one of a first charging station via a first charging port or a second charging station via a second charging port;
• configuring, by the controller of the vehicle, a plurality of switches of a rechargeable energy storage system of the vehicle based at least in part on the determined charging mode, wherein the plurality of switches comprise:
• a first switch electrically connected to the first charging port;
• a second switch electrically connected to the second charging port;
• a third switch electrically connected between the first switch and the second switch;
• a fourth switch electrically connected between the first battery pack and an auxiliary device generating an accessory load;
• and
• a fifth switch electrically connected between the second battery pack and the auxiliary device generating the accessory load;
• diagnosing a problem with a switch of the plurality of switches of the rechargeable energy storage system of the vehicle,
• wherein, during the dynamic balancing during parallel charging mode, the first switch, the second switch, and the third switch are closed, and wherein the controller selectively controls the fourth switch and the fifth switch based at least in part on a first current of the first battery pack and a second current of the second battery pack.