SURFACE STATE OF CHARGE BASED TRACTION BATTERY POWER CAPABILITY

A traction battery is charged or discharged according to power limits that are based on generated state of charge values for the traction battery such that, for a 1C discharge rate of the traction battery at a temperature of 0° C., measured terminal voltage values of the traction battery continue to track terminal voltage values that are a function of the generated state of charge values as current throughput of the traction battery increases.