Abstract: 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.

Abstract: An energy storage system for a vehicle is provided. The system includes a plurality of energy storage devices that are arranged to provide output power to a vehicle and are connected in parallel with each other. A plurality of sub-relays are connected to the plurality of energy storage devices, respectively. A controller then measures the degrees of deterioration of the respective energy storage devices and selectively opens or closes the sub-relays based on the amount of output power required for a vehicle and the measured degrees of deterioration such that a sub-relay connected to an energy storage device having a low degree of deterioration is closed first.

Abstract: 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.

Abstract: A system for managing the temperature of a battery, may include a battery configured to store electrical energy; a temperature-increase heater configured to convert the electrical energy stored in the battery into thermal energy to increase the temperature of the battery; a temperature-increase heater relay configured to connect or disconnect an electrical energy path provided from the battery to the temperature-increase heater; a thermal fuse configured to disconnect the electrical energy path when the temperature of the battery is equal to or higher than a predetermined reference temperature; and a controller configured to induce disconnection of the thermal fuse by increasing the temperature of the battery to the reference temperature or higher using the thermal energy converted by the temperature-increase heater, when the temperature-increase heater relay is fused.

Abstract: An energy storage system for a vehicle is provided. The system includes a plurality of energy storage devices that are arranged to provide output power to a vehicle and are connected in parallel with each other. A plurality of sub-relays are connected to the plurality of energy storage devices, respectively. A controller then measures the degrees of deterioration of the respective energy storage devices and selectively opens or closes the sub-relays based on the amount of output power required for a vehicle and the measured degrees of deterioration such that a sub-relay connected to an energy storage device having a low degree of deterioration is closed first.

Abstract: A system for managing the temperature of a battery, may include a battery configured to store electrical energy; a temperature-increase heater configured to convert the electrical energy stored in the battery into thermal energy to increase the temperature of the battery; a temperature-increase heater relay configured to connect or disconnect an electrical energy path provided from the battery to the temperature-increase heater; a thermal fuse configured to disconnect the electrical energy path when the temperature of the battery is equal to or higher than a predetermined reference temperature; and a controller configured to induce disconnection of the thermal fuse by increasing the temperature of the battery to the reference temperature or higher using the thermal energy converted by the temperature-increase heater, when the temperature-increase heater relay is fused.

Abstract: 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.

Abstract: An apparatus and a method for detecting a dielectric breakdown in an eco-friendly vehicle are provided. The apparatus includes a measurer that is configured to measure resistance values of insulation resistors disposed across a high voltage battery and a controller that is configured to measure a voltage applied to the insulation resistor using the measurer and analyze a pattern of the measured voltage to detect a dielectric breakdown portion.

Abstract: 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.

Abstract: A circuit for protecting a battery for an electric vehicle includes a high voltage battery configured to output a DC voltage, an inverter configured to selectively receive the DC voltage from the high voltage battery and invert the DC voltage into an AC voltage when the inverter receives the DC voltage, a relay disposed between the high voltage battery and the inverter and configured to selectively block the DC voltage from the high voltage battery to the inverter, and a battery management system including a microchip configured to output a main relay control signal for controlling the relay. The battery management system is configured to receive the DC voltage from the high voltage battery, and output a voltage relay control signal controlling the relay separately from the control by the microchip.

Abstract: A circuit for protecting a battery for an electric vehicle includes a high voltage battery configured to output a DC voltage, an inverter configured to selectively receive the DC voltage from the high voltage battery and invert the DC voltage into an AC voltage when the inverter receives the DC voltage, a relay disposed between the high voltage battery and the inverter and configured to selectively block the DC voltage from the high voltage battery to the inverter, and a battery management system including a microchip configured to output a main relay control signal for controlling the relay. The battery management system is configured to receive the DC voltage from the high voltage battery, and output a voltage relay control signal controlling the relay separately from the control by the microchip.

Abstract: An apparatus and a method for detecting a dielectric breakdown in an eco-friendly vehicle are provided. The apparatus includes a measurer that is configured to measure resistance values of insulation resistors disposed across a high voltage battery and a controller that is configured to measure a voltage applied to the insulation resistor using the measurer and analyze a pattern of the measured voltage to detect a dielectric breakdown portion.

Abstract: A circuit for protecting a battery for an electric vehicle includes a high voltage battery configured to output a DC voltage, an inverter configured to selectively receive the DC voltage from the high voltage battery and invert the DC voltage into an AC voltage when the inverter receives the DC voltage, a relay disposed between the high voltage battery and the inverter and configured to selectively block the DC voltage from the high voltage battery to the inverter, and a battery management system including a microchip configured to output a main relay control signal for controlling the relay. The battery management system is configured to receive the DC voltage from the high voltage battery, and output a voltage relay control signal controlling the relay separately from the control by the microchip.

Abstract: Disclosed is a method for setting sequential ID to a multi-slave BMS in a battery pack, the battery pack including N (N: natural number of 2 or more) slave BMSs having sequential physical locations to control a battery module containing at least one battery and a main BMS to control the N slave BMSs.

Abstract: There are provided an apparatus and method for charging and discharging a photovoltaic PCS integrated battery applied to a system that includes a first DC/DC converter 110 connected to a solar cell 10, a DC/AC inverter 120, a DC link unit 130 connected in common to output terminals of the first DC/DC converter 110 and the DC/AC inverter 120, and a second DC/DC converter 140 having a bidirectional DC/DC conversion function connected between the DC rink unit 130 and the battery 30. The present invention calculates the amount of photovoltaic power produced by the solar cell 10 based on voltage and current detected in the voltage/current detector 200, determines one of predetermined control modes according to the amount of photovoltaic power and the connection or not of the battery, and controls the first DC/DC converter 110, the second DC/DC converter, and the DC/AC inverter according to the determined control mode.

Abstract: Disclosed is a method for setting sequential ID to a multi-slave BMS in a battery pack, the battery pack including N (N: natural number of 2 or more) slave BMSs having sequential physical locations to control a battery module containing at least one battery and a main BMS to control the N slave BMSs.

Abstract: There is provided a photovoltaic and fuel cell hybrid generation system using dual converters and a single inverter and a method of controlling the same. A photovoltaic and fuel cell (PV-FC) hybrid generation system according to an aspect of the invention may include: a PV DC/DC converter unit converting a PV output voltage into a predetermined voltage; an FC DC/DC converter unit converting an FC output voltage into a predetermined voltage; a DC link unit commonly connecting an output terminal of the PV DC/DC converter unit and an output terminal of the FC DC/DC converter unit, and linking the converted PV output voltage from the PV DC/DC converter unit to the converted FC output voltage from the FC DC/DC converter unit to thereby generate a DC voltage; and a DC/AC inverter unit converting the DC voltage from the DC link unit into a predetermined AC voltage.

Abstract: An inorganic light emitting display including: a first electrode; a second electrode facing the first electrode; a light emitting layer disposed between the first electrode and the second electrode; and an field emission layer disposed between the light emitting layer and the second electrode.

Abstract: There are provided an apparatus and method for charging and discharging a photovoltaic PCS integrated battery applied to a system that includes a first DC/DC converter 110 connected to a solar cell 10, a DC/AC inverter 120, a DC link unit 130 connected in common to output terminals of the first DC/DC converter 110 and the DC/AC inverter 120, and a second DC/DC converter 140 having a bidirectional DC/DC conversion function connected between the DC rink unit 130 and the battery 30. The present invention calculates the amount of photovoltaic power produced by the solar cell 10 based on voltage and current detected in the voltage/current detector 200, determines one of predetermined control modes according to the amount of photovoltaic power and the connection or not of the battery, and controls the first DC/DC converter 110, the second DC/DC converter, and the DC/AC inverter according to the determined control mode.

Abstract: An electron emission device includes a base substrate, at least one isolation layer on the base substrate, the isolation layer having a first lateral side and a second lateral side opposite the first lateral side, first and second electrodes on the base substrate along the first and second lateral sides of the isolation layer, respectively, a first electron emission layer between the first electrode and the first lateral side of the isolation layer, and a second electron emission layer between the second electrode and the second lateral side of the isolation layer.