Method and battery management system for estimating parameters of battery equivalent circuit model for a battery

摘要

Disclosed are a method for estimating a parameter of an equivalent circuit model for a battery, and a battery management system. The equivalent circuit model includes a first resistor, a second resistor connected in series with the first resistor, and a capacitor connected in parallel with the second resistor. According to one embodiment of the present invention, the method separately estimates a resistance value of the first resistor and a resistance value of the second resistor based on a first number of terminal voltages and the first number of currents sequentially measured for each time step within a sliding time window having a predetermined size, and stores data representing the result of the estimation in a memory.