Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Kia Motor Company

Kyung In Min

Suk Hyung Kim

Jae Hoon Choi

Yu Seok Kim

Yoon Jun Lee

Dong Il Kim

Woo Sung Kim

Do Sung Hwang

Kyung Ho Kim

Hyun Soo Park

Bo Ram Yang

Hyo Sik Moon

Young Woo Lee

Ik Kyu Kim

Sung Il Lee

Ki Seung Baek

Jae Shin Yi

Dae Gun Jin

Ki Chul Hong

Soo Yang Jin

Jin Wook Kim

Dong Gun Kim

Hee Tae Yang

Jun Ho Bang

Beom Joo Kwon

Jin Ho Park

Beom Sik Kim

Jong Hu Yoon

Jun Seok Choi

Jeong Hun Seo

Hyun Jin Park

Do Kyoung Lim

Hui Tae Yang

Hee Sung Moon

Jung Je Woo

Kyun Young Ahn

Yun Ho Kim

Hae Kyu Lim

Yong Hwan Choi

Yoon Cheol Jeon

Woo Sub Kim

Mi Ok Kim

Byung Su Kim

Yong Jae Kim

Dong Gil Ha

Dong Ii Kim

Ji Won Nam

Sung Keun Song

The present invention relates to a battery diagnosis system and method, and disclosed is a battery diagnosis system including a receiving unit that receives information on a high voltage battery and charge state information of the high voltage battery of a vehicle being charged; a control unit that controls a current of the high voltage battery; a measurement unit that measures a voltage change amount of the high voltage battery in which the current is controlled; and a determination unit that determines the battery having the voltage change amount of an abnormal battery among the voltage change amounts of the battery measured in the measurement unit.

Battery diagnosis system and method

A system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor is disclosed. The system for managing a vehicle battery as disclosed includes a controller that receives a voltage of each of a plurality of battery cells in a vehicle battery, a temperature of the vehicle battery, and an insulation resistance of the vehicle battery, determines a reference value based on a deviation between voltages of the plurality of battery cells and the temperature of the vehicle battery, and determines whether the vehicle battery is abnormal by comparing the determined reference value with the insulation resistance.

System and method for managing vehicle battery

A system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor is disclosed. The system for managing a vehicle battery as disclosed includes a controller that measures a voltage of each of a plurality of battery cells in a vehicle battery when a voltage applied to the vehicle battery is constant, and determines whether the plurality of battery cells is abnormal based on a deviation between the measured voltages of the plurality of battery cells.

Disclosed is a system for managing a vehicle battery that is chargeable/dischargeable and stores energy for driving a vehicle driving motor. The system for managing the vehicle battery as disclosed includes a controller that measures a polarization voltage of each of a plurality of battery cells in a vehicle battery after charging of the vehicle battery is terminated, and determines whether each of the plurality of battery cells is abnormal based on the measured polarization voltage.

System and method for diagnosing abnormality of vehicle battery

The disclosure relates to a battery management apparatus, a vehicle having the same, and a method of controlling the vehicle. A method of controlling the vehicle having a motor, an engine, and a battery includes detecting respective voltage values of the plurality of cells provided in the battery; identifying a maximum voltage value and a minimum voltage value among the voltage values of the plurality of cells; obtaining a voltage deviation value between the identified maximum voltage value and the minimum voltage value; obtaining a deterioration rate of the battery; obtaining a power limit value of the battery based on at least one of the voltage deviation value or the deterioration rate of the battery; obtaining a final power limit value based on the obtained power limit value and a preset weight; and controlling a discharge of the battery based on the obtained final power limit value.

Battery management apparatus, vehicle having the same, and method of controlling vehicle

A braking control system for a vehicle is provided. The system includes a motor providing rotational force to wheels of the vehicle and a first battery storing electric energy for driving the motor. An inverter is connected to the first battery via a DC link terminal and performs a bidirectional power conversion between the DC link terminal and the motor. A DC converter is connected to the DC link terminal to down-convert a voltage of the DC link terminal and output the down-converted voltage. A second battery is supplied with the voltage converted by the DC converter and has a voltage lower than that of the first battery. A controller operates the inverter and the DC converter to charge regenerative braking energy generated from the motor during braking of the vehicle in the first battery and the second battery.

Braking control system and method for vehicle

A battery management system (BMS) may include a battery, a relay configured to electrically connect and disconnect the battery for supplying a voltage (an electric power) to an electric load to and from the electric load, the electric load configured to receive the voltage (the electric power) from the battery, to compare the received voltage (the electric power) with a reference value and to output a wakeup signal according to the compared result, when the relay is electrically connected, and a controller configured to wake up by the wakeup signal, to monitor a state of the battery and to control a state of the relay. It is possible to prevent overdischarge and overcharge of the battery by monitoring the battery through the electric load in a state in which a vehicle is turned off and switching the BSM to a wakeup state only if necessary.

Battery management system and method of controlling the same

A method and system for detecting fusion of a relay are provided to more accurately diagnose fusion of a relay by adjusting relay OFF order when a vehicle engine is turned off using data regarding whether fusion of a relay was detected when the vehicle engine was turned on. The method includes detecting whether first and second relays have been fused when a vehicle engine was turned on and adjusting OFF order of the first and second relays when the vehicle engine is turned off based on whether the first and second relays have been fused.

Method and system for detecting fusion of relay

A battery system for a vehicle includes: a battery assembly including at least one first battery module and at least one second battery module; a first relay being closed/opened between a first node and one of a first end of the first battery module and a first end of the second battery module being connected to a second end of the first battery module; a second relay being closed/opened between a second node and a second end of the second battery module; a converter converting a voltage between the nodes; a third relay being closed/opened between the converter and the first end of the first battery module; a fourth relay being closed/opened between the first end of the first battery module and a ground; and a battery manager controlling the relays based on a driving condition of the vehicle and energy storage amounts of the modules.

Battery system for vehicle

A system for charging a vehicle battery includes a relay configured to establish/interrupt electrical connection between the vehicle battery and a vehicle system supplied with power from the vehicle battery, and a controller. The controller is configured to monitor a voltage of the battery, control the relay to interrupt the electrical connection when a voltage of the battery is less than or equal to a first predetermined reference value, and control the relay to establish the electrical connection when a predetermined condition is satisfied while the relay is electrically disconnected. The controller controls the relay to be electrically connected to charge the battery through an external power source while the electrical connection is interrupted, and then control a connection state of the relay based on the voltage of the battery, a voltage and current of the relay at a side of the vehicle system, and whether a vehicle is started.

System and method for charging a vehicle battery by controlling a relay between the battery and a vehicle system

A battery management system for a vehicle is provided. The system is capable of preventing vehicle malfunction by preventing overcharge and over-discharge of a low-voltage battery by providing a controller that is configured to receive power transmitted from a first connection line and power transmitted from a second connection line. The battery management system includes a relay configured to electrically connect and disconnect power that is supplied from a battery to loads. The system also includes a controller configured to receive a first regular power transmitted through a connection line between the battery and the relay and a second regular power transmitted through a connection line between the relay and the loads. The controller is further configured to turn the relay on and off.

Battery management system for vehicle

A battery cooling system includes: a housing in which an inlet duct from which air is introduced and an outlet duct through which the air is discharged are mounted; a first battery mounted in the housing and disposed between the inlet duct and the outlet duct; and a low voltage battery disposed between the first battery and the inlet duct.

Battery cooling system

A battery management system for a vehicle is provided to prevent current consumption of a battery by operating a relay connected between the battery and electronic loads to prevent an over-discharge of the battery. The battery management system includes a sensing unit that is configured to measure a current and a voltage of a battery for a vehicle and a relay that is connected between the battery for the vehicle and electronic units of the vehicle. Additionally, a controller is configured to receive data from the sensing unit to turn off the relay.

Battery management system for vehicle and controlling method thereof

A method for resetting an SOC of a battery in a hybrid vehicle includes calculating a first SOC value of the battery after the hybrid vehicle starts. A second SOC value of the battery is calculated using an open circuit voltage (OCV) of the battery. The second SOC value of the battery and a third SOC value for vehicle start-up are compared with each other, an SOC value of a battery management system is reset to the third SOC value when the second SOC value of the battery is smaller than the third SOC value, and the SOC value of the battery management system is reset to the second SOC value of the battery when the second SOC value of the battery is larger than the third SOC value.

Method for resetting state of charge of battery in hybrid vehicle

A stable power supply device for a high voltage battery system in a vehicle enables the voltage of a capacitor in a high voltage component to be gradually increased at an initial stage of ignition, using a heat generating resistor of a temperature raising system mounted to raise the temperature of a battery in the vehicle. Further, the stable power supply device enables a capacitor in a high voltage component to be discharged using a heat generating resistor of a temperature raising system after the ignition of the vehicle is off, thereby ensuring the stability of the system.

Stable power supply device for high voltage battery system

Growing community of inventors

Gyeonngi-do, South Korea

Kyung In Min