| 摘要 |
PURPOSE: An SOC(State Of Charge) correction system of a multiple pack parallel structure is provided to prevent the induction of multi pack unbalanced and energy consumption which does not want due to a cell voltage sensing error. CONSTITUTION: Sub BMSs(Battery Management System)(110, 140, 170, 200) are connected to sub packs(10-100) and calculate SOC of the sub packs. A main BMS(300) is connected to the sub BMSs. The main BMS collects the SOC calculated in the sub BMSs and transfers a final SOC to a vehicle controller. The sub BMSs determines sensing error when a cell voltage created by a plurality of voltage sensor included in the sub packs is less than or equal to 0.5V. |
