PASSIVE DYNAMIC CELL BALANCING TECHNIQUES FOR ELECTRIFIED VEHICLES

A passive dynamic cell balancing system for an electrified vehicle includes a dynamic load system configured to vary a balancing current output to a battery system of the electrified vehicle, wherein the battery system comprises a plurality of battery cells, and a control system configured to estimate a charge imbalance across the plurality of battery cells by estimating a state of charge (SOC) of each of the plurality of battery cells, estimate a balancing current for each of the plurality of battery cells based on their respective estimated SOCs, and controlling the variable load system based on the estimated balancing currents to dissipate a desired amount of electrical energy from each of the plurality of battery cells to resolve the estimated charge imbalance.