System for battery module balancing via variable voltage DC-DC converter in a hybrid-electric powertrain

摘要

An apparatus for balancing a battery module in a vehicle including a plurality of batteries in the battery module, the plurality of batteries connected in series, the plurality of batteries each having a battery voltage, and at least one battery providing power to an electrical system of the vehicle, an electric generator producing a generator voltage to charge the plurality of batteries, and a DCDC converter coupled to the electrical generator and receiving power from the electrical generator, the DCDC converter monitoring at least one of the battery voltages of at least one of the plurality of batteries and controlling the battery voltage of the battery providing power to the electrical system of the vehicle with reference to the monitored battery voltage.