Battery pack management device
AssigneeLG Energy Solution, Ltd.
InventorsChang-Hyun Sung, Jae-Dong Park, Sang-Hoon Lee, Yean-Sik Choi
Life of this patent
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Abstract
A battery pack management device capable of reducing power consumption while transmitting and receiving data between a master BMS and a slave BMS by using a wireless communication method. The battery pack management device according to the present disclosure includes: a master BMS including an external communicator, an internal communicator, and a master controller and a slave BMS including a power supply, a state measurement sensor, a slave wireless communicator, and a slave controller.
Claims11
A battery pack management device including a battery pack having a battery module including a plurality of secondary batteries and mountable on a vehicle, the battery pack management device comprising:
- a master battery management system (BMS) including an external communication unit configured to transmit and receive a signal to and from an external device of the battery pack, an internal communication unit configured to transmit and receive a wireless communication signal to and from one or more slave BMSs provided in the battery pack, and a control unit programmed to process data received through the external communication unit and the internal communication unit;
- and
- a slave BMS including a power supply module configured to receive power from the battery module and transmit the received power, a state measurement module configured to measure state information of at least one of a voltage and a temperature of the battery module, a wireless communication module configured to transmit and receive a wireless communication signal to and from the master BMS, and a control module configured to control an on/off time of the wireless communication module,
- wherein the control module is programmed to control the on/off time of the wireless communication module according to at least one selected from a parking time of the vehicle, a voltage of the battery module that is measured by the state measurement module, a temperature of the battery module that is measured by the state measurement module or a traveling time pattern of the vehicle.
Dependencies are inferred from the claim text.