Battery management system and driving method thereof
AssigneeSamsung SDI Co., Ltd.
InventorsSe-Wook Seo, Soo-Seok Choi, Young-Jo Lee, Yong-Jun Tae, Han-Seok Yun, Gye-Jong Lim, Beom-Gyu Kim, Ho-Young Park, Kyu-Nam Han
Life of this patent
Estimating the term…
Abstract
Battery management system and a driving method thereof including a sensing unit and an MCU. The sensing unit measures a battery current and a battery voltage. The MCU sets an OCV during a no-load state period at time increments measured from the beginning of the no-load state period, and estimates an SOC corresponding to the set OCV.
Claims23
A battery management system for a vehicle, comprising:
- a main control unit (MCU) to set an open circuit voltage (OCV) setting and estimate a state of charge (SOC) therefrom;
- and
- a sensing unit to measure a battery current of a battery and a battery voltage of the battery and to transmit at least the battery voltage to the MCU;
- wherein the MCU sets the battery voltage to the OCV setting according to a length of time of a no-load state period, with respect to a stop point, and a length of time of a determining period, with respect to the stop point.
A driving method of a battery management system for a vehicle, the driving method comprising:
- measuring a length of time of a no-load state period with respect to a stop point;
- during the no-load state period, setting a battery voltage to an open circuit voltage (OCV) setting according to the length of time of the no-load state period and a length of time of a determining period with respect to the stop point;
- and
- estimating a state of charge (SOC) from the OCV setting.
A battery management system for a vehicle, comprising:
- a main control unit (MCU) to set an open circuit voltage (OCV) setting;
- and
- a sensing unit to measure a battery current of a battery and a battery voltage of the battery and to transmit at least the battery voltage to the MCU;
- wherein, the MCU sets the battery voltage to the OCV setting and estimates a state of charge (SOC) therefrom upon expiration of increments of time during a no-load period.
Dependencies are inferred from the claim text.