CONTROL AND MONITORING OF VEHICLE BATTERY BASED ON COULOMBIC EFFICIENCY RATIO

A method for monitoring a battery module in a vehicle includes selecting an upper cut-off voltage and a lower cut-off voltage for the battery module. The method includes charging the battery cell from an original state to a first benchmark voltage greater than an upper cut-off voltage, via a first charging process. The method includes discharging the battery cell from the first benchmark voltage to a second benchmark voltage less than a lower cut-off voltage, via a first discharging process. The battery module is then charged from the second benchmark voltage to the first benchmark voltage, via a second charging process. The method includes obtaining a ratio of a discharging capacity to a charging capacity of the battery module. Operation of the vehicle is controlled based in part on the ratio, including taking at least one remedial action if the ratio is less than a predefined threshold.