Slave BMS for diagnosing an error of a battery module and battery pack comprising same slave BMS
AssigneeLG Energy Solution, Ltd.
InventorsYe Seul Lee, Hyun Ki Cho
Life of this patent
Estimating the term…
Abstract
A battery pack comprising a slave BMS which diagnoses an error in a battery module. The battery pack includes a master BMS and a first slave BMS. The first slave BMS, when an error has occurred in a first battery module, determines whether or not the error is critical. The first slave BMS communicates with the master BMS in a time segment corresponding to the Identification (ID) of the first slave BMS, changes the ID based on whether or not the error is critical, then outputs information on the error to the master BMS in a time segment corresponding to the changed ID.
Claims15
A battery pack comprising:
- a master battery management system (BMS);
- and
- a first slave BMS configured to monitor a first battery module, wherein the first slave BMS is configured to:
- in response to an error in a first battery module, determine whether or not the error is critical;
- communicate with the master BMS in a first time segment corresponding to an ID a first identification (ID) of the first slave BMS;
- change the first ID to a second ID, wherein a timing of the change is based on whether or not the error is critical;
- and
- after the first ID is changed to the second ID, output information on the error to the master BMS in a second time segment corresponding to the second ID.
A first slave BMS configured to communicate with a master BMS in a time segment corresponding to an identification (ID) of the first slave BMS, the first slave BMS comprising:
- a controller configured to, in response to an error in a battery module, determine whether or not the error is critical, and if the error is determined to be critical, change the first ID to a second ID, wherein the first time segment corresponds to the first ID and is after a second time segment corresponding to the second ID and after occurrence of the error, and
- wherein the first slave BMS is configured to, after the first ID is changed to the second ID, output information on the error to the master BMS during the second time segment.
Dependencies are inferred from the claim text.