| 摘要 |
Disclosed is a method of estimating a maximum output of a battery for a hybrid electric vehicle (HEV) . The method comprises steps of : extracting maximum charge/discharge outputs of the battery depending on a plurality of charged states (SOC) of the battery under which the vehicle is able to be driven and calculating an interrelation between them; extracting maximum charge/discharge outputs of the battery at plural temperatures under which the vehicle is able to be driven, and calculating an interrelation between them; extracting degradations of outputs of the battery as a capacity of the battery is discharged during the traveling, and calculating an interrelation between them; and based on the interrelations obtained from each of the steps, estimating a maximum output (Power<SUB>max</SUB>) of the battery through a following function. Powermax - F (SOC, temp, accumulated discharge Ah) = F (SOC, temp) x F (accumulated discharge Ah) |
