Lg Energy Solution, Ltd.

Lg Chem, Ltd

Yean Sik Choi

Seong Yeol Yang

Sang Hoon Lee

Chang Hyun Sung

Hyunki Cho

Chan Ha Park

Jung Hoon Lee

Ho Byung Yoon

Jaedong Park

Ji Won Hwang

Sung Gun Lee

Keunwook Lee

Hu Jun Lee

Jun Cheol Park

The present invention relates to a method of turning on an electric scooter by supplying power to the ECU when the interchangeable battery pack is driven by eliminating the auxiliary battery that always supplies power to the ECU that turns on the start of the electric scooter, providing an interchangeable battery packs using wireless communication type, and using a wireless communication signal received from a smart device as a driving signal of the interchangeable battery pack.

Method for starting electric scooter by using exchangeable battery pack employing wireless communication scheme

A master battery management system (BMS) used for a battery system in which a plurality of slave BMSs and the master BMS communicate wirelessly includes: a receiving unit configured to receive, from each slave BMS, data of the corresponding slave BMS and data transmission information of at least one other slave BMS except for the corresponding slave BMS among the plurality of slave BMS during one period in which each of the plurality of slave BMSs transmits data at least once; and a determination unit configured to determine a communication error or an abnormal slave BMS by using the data of the corresponding slave BMS and the at least one other slave BMS data received from each slave BMS during one period. The data transmission information of the at least one other slave BMS is information on a history that the other slave BMS transmits data.

Slave BMS inspection system and method

A battery system includes a battery pack having a metal housing capable of accommodating a plurality of battery modules, a plurality of slave battery management systems configured to manage the plurality of battery modules, and a master battery management system installed outside the metal housing to wirelessly communicate with a first battery management system among the plurality of slave battery management systems, wherein the first slave battery management system which communicates with the master battery management system is installed at a boundary of the metal housing so as not to be shielded with the metal housing.

Slave battery management system at a boundary of metal housing and battery system including the same

An energy hub apparatus includes a first communicator for receiving state of charge (SOC) information and state of health (SOH) information from a plurality of battery management systems (BMSs), each BMS monitors and controls an energy storage system (ESS) rack, a controller for determining at least one to perform discharging or charging using at least one of load output information, SOC information, and SOH information received from an external device among the plurality of ESS racks, and an energy storage for receiving power from the at least one ESS rack and transmitting the power to an external load.

Energy hub for energy storage system racks based on SOC and SOH

Discussed is an application that efficiently utilizes a vehicle battery by predicting performance of the vehicle battery and an available driving distance based on environmental condition of an area where a vehicle is parked and state information of the vehicle battery.

Apparatus and application for predicting performance of battery

A device and a method for equalizing and precharging a cell module, which may form a circuit for performing a corresponding operation by a converter unit by selectively connecting the converter unit and one or more cell modules by controlling a conduction state of a switching unit based on an operation which the converter intends to perform.

Cell module equalization and precharge device and method

A system of predicting a failure rate of a contactor before the generation of a failure by counting a lifespan index of the contactor based on normality of through-currents of a primary side and a secondary side of the contactor, and determining that a failure rate of the contactor increases when a count value for an abnormal through-current exceeds a predetermined threshold value.

Contactor failure rate prediction system and method

A relay diagnosis circuit capable of diagnosing whether a relay connected to a negative electrode of a battery pack normally operates using voltage applied from a positive electrode of the battery pack.

Growing community of inventors

Daejeon, South Korea

Yean Sik Choi