Battery control systems and methods based on derated state of vehicle

A battery system for a vehicle, comprising:

• a first positive terminal, a second positive terminal, and a negative terminal;
• switches;
• at least two battery modules, wherein each of the at least two battery modules includes at least three strings of battery cells that are configured to, at different times be:
• connected in series and to the first positive terminal via first ones of the switches;
• connected in parallel and to the second positive terminal via second ones of the switches;
• and
• disconnected from both of the first and second positive terminals;
• and
• a switch control module configured to:
• based on a derated state (DS) of the vehicle, determine a target temperature range for the battery strings and a target state of charge (SOC) for the battery strings;
• determine an order for the battery strings;
• and
• control switching of the switches thereby adjusting, in the order for the battery strings, the temperatures and the SOCs of the battery strings, respectively, toward the target temperature range and the target SOC.

A method for a vehicle, comprising:

• based on a derated state (DS) of the vehicle, adjusting at least one of (a) an upper limit for charging of battery strings of a battery and (b) a lower limit for discharging of the battery strings, the battery including:
• a first positive terminal, a second positive terminal, and a negative terminal;
• switches;
• at least two battery modules, wherein each of the at least two battery modules includes at least three strings of battery cells that are configured to, at different times be:
• connected in series and to the first positive terminal via first ones of the switches;
• connected in parallel and to the second positive terminal via second ones of the switches;
• and
• disconnected from both of the first and second positive terminals;
• and
• controlling switching of the switches thereby at least one of (a) limiting discharging of the battery strings to the adjusted lower limit and (b) limiting charging of the battery strings to the adjusted upper limit.