A novel lead-acid battery management system based on generator voltage regulation algorithm

In this paper, a novel algorithm which optimally regulates the generator voltage was proposed. With this method, terminal voltage that applied on the battery was limited and optimized to an ideal range to save the electrical energy and protect the lead-acid battery from damages such as sharp charging pulse or over charging (discharging). This generator regulation model is implemented in Matlab/Simulink. Simulations performed on the dSPACE^® AutoBox™ workbench verifies the logic functions of the algorithm, and the results of experiments on vehicle show that this new algorithm, compared with traditional generator control method, has more voltage set points, and it has certain contribution to the fuel economy of vehicle and battery state-of-health (SOH).