Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: An embodiment system for controlling a battery temperature for vehicle-to-vehicle charging includes an info controller provided in a power receiving electric vehicle and configured to receive information on a power transmitting electric vehicle and charging schedule information from a vehicle-to-vehicle charging service server, a vehicle controller configured to receive the information on the power transmitting electric vehicle and the charging schedule information from the info controller, to receive battery temperature information of the power receiving electric vehicle from a battery controller, and to calculate an estimated charging time of vehicle-to-vehicle charging by the power transmitting electric vehicle, and a battery temperature controller configured to control the battery temperature of the power receiving electric vehicle by controlling operation of a battery heater or a battery chiller, wherein the vehicle controller is configured to control the battery temperature controller in consideration o

Abstract: A delivery method for a traveling vehicle using a drone includes: transmitting, by an orderer, first information including position information of a vehicle to a server and providing, by the server, a position and an inventory of service providers, which correspond to the first information including the position information of the vehicle, to the orderer; requesting, by the server, service provision to the service provider; transmitting, by the service provider, second information including article preparation information to the server; transmitting, by the server, third information including a plurality pieces of receipt position information, which corresponds to the first information including the position information of the vehicle and the second information including the article preparation information, to the orderer; transmitting, by the orderer, a value selected by receiving the third information including the plurality pieces of receipt position information to the server; transmitting, by the server,

Abstract: An urban air mobility power supply system includes an urban air mobility (UAM) device and a power supply drone docked with the UAM device using electromagnetic force to supply external power, and a power supply method, in which the UAM device 200 and the power supply drone are accurately aligned with each other using electromagnets provided in the UAM device and the power supply drone to supply power, and the UAM device and the power supply drone can be easily separated from each other using electromagnetic force.

Abstract: Provided are an apparatus and a method for controlling test charging and discharging based on vehicle to grid (V2G) technology. The apparatus comprises a vehicle controller selecting a control command for charging, discharging, or charging/discharging a battery and a charge/discharge controller charging, discharging, or charging/discharging the battery according to the selected control command, wherein an operation of the vehicle controller and an operation of the charge/discharge controller are performed for a standby time in which calculation is performed on a charge profile.

Abstract: Disclosed is a gas fuel-based moving object capable of checking the amount of gas filling according to filling specification and method therefor. The moving object includes: a transceiver configured to receive filling specification information of a gas charger; and a processor configured to estimate, based on the filling specification information, a maximum possible filling amount of gas injected to a fuel tank of the moving object and to provide the maximum possible filling amount through a user interface.

Abstract: A power supply system for an urban air mobility (UAM) device includes a charging station provided on the ground and including a power cable for supplying power, a UAM power supply mobility device configured to be anchored at the charging station and provided with the power to charge a battery therein or to supply the power to the UAM device separated from the charging station using the power cable while flying with the UAM device, and an auxiliary mobility device configured to control a path of the power cable to keep the power cable in a preset space while flying between the charging station and the UAM power supply mobility device.

Abstract: An urban air mobility (UAM) power supply system includes a UAM power supply mobility device physically connected to or disconnected from an UAM device, and a charging station including a power cable for supplying power to the UAM device. The UAM power supply mobility device is equipped with the power cable to supply the power from the charging station to the UAM device through the power cable while flying along with the UAM device until the UAM device separated from the charging station reaches an overhead position in a preset space from the charging station.

Abstract: A hybrid electric vehicle and a method for compensating a motor torque thereof, may include a hybrid control unit (HCU) including a processor and a non-transitory storage medium containing instructions executed by the processor. The processor is configured to start motor torque intervention upon entering a predetermined shift phase during shifting, to determine a motor torque compensation amount by reflecting engine torque according to engine torque reduction control, and to perform motor torque compensation control based on the motor torque compensation amount.

Abstract: A device and a method for controlling an SOC of a battery of a hybrid vehicle are provided. The device includes at least one processor, and the processor sets a battery SOC at a time of terminating operation of the vehicle by activating a SOC setting function when a destination is set. The processor further determines whether the set battery SOC is equal to or less than a SOC chargeable with a high efficiency, and performs battery SOC control such that a battery SOC reaches the set battery SOC at a time of arrival at the destination of the vehicle when the set battery SOC is equal to or less than the SOC chargeable with the high efficiency.

Abstract: A delivery method for a traveling vehicle using a drone includes: transmitting, by an orderer, first information including position information of a vehicle to a server and providing, by the server, a position and an inventory of service providers, which correspond to the first information including the position information of the vehicle, to the orderer; requesting, by the server, service provision to the service provider; transmitting, by the service provider, second information including article preparation information to the server; transmitting, by the server, third information including a plurality pieces of receipt position information, which corresponds to the first information including the position information of the vehicle and the second information including the article preparation information, to the orderer; transmitting, by the orderer, a value selected by receiving the third information including the plurality pieces of receipt position information to the server; transmitting, by the server,

Abstract: A hybrid electric vehicle and a method for compensating a motor torque thereof, may include a hybrid control unit (HCU) including a processor and a non-transitory storage medium containing instructions executed by the processor. The processor is configured to start motor torque intervention upon entering a predetermined shift phase during shifting, to determine a motor torque compensation amount by reflecting engine torque according to engine torque reduction control, and to perform motor torque compensation control based on the motor torque compensation amount.

Abstract: An apparatus for controlling an electric oil pump (EOP) includes a controller calculating first revolutions per minute (RPM), second RPM and third RPM, the first RPM being EOP RPM required for control of a brake in a transmission, the second RPM being EOP RPM required for cooling of a plurality of motors, and the third RPM being EOP RPM required for lubrication of the plurality of motors, the controller comparing the second RPM with the third RPM and driving the EOP at an RPM obtained by adding the first RPM to the greater of the second RPM and the third RPM.

Abstract: An apparatus for controlling an electric oil pump (EOP) includes a controller calculating first revolutions per minute (RPM), second RPM and third RPM, the first RPM being EOP RPM required for control of a brake in a transmission, the second RPM being EOP RPM required for cooling of a plurality of motors, and the third RPM being EOP RPM required for lubrication of the plurality of motors, the controller comparing the second RPM with the third RPM and driving the EOP at an RPM obtained by adding the first RPM to the greater of the second RPM and the third RPM.

Abstract: A method for monitoring a torque in a hybrid electric vehicle includes calculating an output torque of a motor based on a discharging power of a high voltage battery, a consumption power of a plurality of electric loads, and a motor speed. A first difference value between a motor torque command and the calculated output torque of the motor is calculated. The first difference value is compared with a first reference value. When the first difference value is larger than the first reference value, the hybrid electric vehicle is entered in a fail safe mode.

Abstract: An apparatus for estimating a crank angle when an engine stops includes a crank sensor generating an output signal indicating a rotational angle of a crankshaft. A resolver generates an output signal indicating a rotor absolute angular position of a motor which is connected to the engine to transmit power. A controller is configured to store output signal data of a crank sensor and output signal data of the resolver until the engine stops, and determines the crank angle based on motor reverse rotation information from the stored crank sensor output signal data and the stored resolver output signal data when the engine stops completely.

Abstract: A transmission system for a hybrid electric vehicle includes an input shaft connected to an output side of an engine, first and second motors/generators having a function of a motor and a generator and disposed in a transmission housing, a planetary gear set disposed on the input shaft and including three rotating elements, in which among three rotating elements, a first rotating element is directly connected to the first motor/generator and selectively connected to the input shaft and the transmission housing, a second rotating element is directly connected to the input shaft, and a third rotating element is connected to an output gear and connected to the second motor/generator, and a connection unit disposed at the selective connection part.

Abstract: A transmission system for a four wheel drive hybrid electric vehicle includes: an input shaft selectively connected to a front wheel transmission housing while being connected to an output shaft of an engine; a first motor/generator having disposed in the front wheel transmission housing; a second motor/generator having a function of the motor and the generator and connected to a rear wheel output gear disposed in a rear wheel transmission housing; a planetary gear set on the input shaft and including three rotating elements, in which among three rotating elements, a first rotating element is directly connected to the first motor/generator and selectively connected to the input shaft, a second rotating element is directly connected to the input shaft, and a third rotating element is selectively connected to a front wheel output gear; and a connection unit disposed at a selective connection part.

Abstract: A method for monitoring a torque in a hybrid electric vehicle includes calculating an output torque of a motor based on a discharging power of a high voltage battery, a consumption power of a plurality of electric loads, and a motor speed. A first difference value between a motor torque command and the calculated output torque of the motor is calculated. The first difference value is compared with a first reference value. When the first difference value is larger than the first reference value, the hybrid electric vehicle is entered in a fail safe mode.

Abstract: A transmission system for a four wheel drive hybrid electric vehicle includes: an input shaft selectively connected to a front wheel transmission housing while being connected to an output shaft of an engine; a first motor/generator having disposed in the front wheel transmission housing; a second motor/generator having a function of the motor and the generator and connected to a rear wheel output gear disposed in a rear wheel transmission housing; a planetary gear set on the input shaft and including three rotating elements, in which among three rotating elements, a first rotating element is directly connected to the first motor/generator and selectively connected to the input shaft, a second rotating element is directly connected to the input shaft, and a third rotating element is selectively connected to a front wheel output gear; and a connection unit disposed at a selective connection part.