Hyundai Motor Company

Kia Motors Corporation

Sungkyunkwan University

Kia Corporation

Yonsei University

Korea Institute of Science and Technology

Electronics and Telecommunications Research Institute

Hynix Semiconductor Inc.

Korea Advanced Institute of Science and Technology

Lg Innotek Co., Ltd.

Hyundai Electronics Industries Co. Ltd.

Hanwha Solutions Corporation

Myongji University Industry and Academia Cooperation Foundation

Kia Motor Corporation

Shin Sung C&t Co., Ltd.

Woo Young Lee

Gyu Yeong Choe

Dae Woo Lee

Jin Young Yang

Jin Myeong Yang

Jong Pil Kim

Byoung Kuk Lee

In Yong Yeo

Sihun Yang

Jae Eun Cha

Si Hun Yang

Min Kook Kim

Min Jung Kim

Byeong Cheol Song

Jong Eun Byun

Sang Joon Ann

Byeong Seob Song

Jongpil Kim

Inyong Yeo

Hyun Wook Seong

Young Jin Kim

Jun Ho Kim

Tae Jong Ha

Gyu Hyeong Choe

JongPil Kim

Min Woo Kang

Jin Woo Kwak

Hoon Ki Lee

Byung Wook Kim

Dong Gyun Woo

Suk Hee Han

Youngjin Kim

Jin Hwan Jung

Joon Yeon Chang

Uk Il Yang

Youn Sik Lee

Min Seong Choi

Ji Eun Won

JinYoung Yang

In Woong Lyo

Ju Han Kim

Jaehyuk Choi

Seok Joon Kim

Han Saem Lee

Min Kyun Yoo

Sang Bok Won

Jung Hong Joo

Seul Ki Han

Ji Han Lee

Jae Han Lee

Jae Pil Hwang

Hyung Sun Jang

Bo Young Yun

Dong Hun Lee

Tae Young Kim

Minjung Kim

Won Hee Lee

Hyun Kyu Chung

Jin Won Kim

Jin Kyeong Kim

Hyun Soo Kim

Young Keun Kim

Kyong Hwa Song

Gun Woo Moon

Jung Do Suh

Soo Min Lee

Heon Ju Lee

Sam Yong Kim

Seung Joon Lee

Jong Kook Lee

Jeong Yun Lee

Kyung Ho Shin

Kyoung Jun Lee

Kyu Won Lee

Sung Geun Jin

Dong Gu Kim

Dong Gu Lee

Seung Hyun Lee

Hyung Bin Ihm

Su Jung Noh

Gun-Woo Moon

Hee Kwang Lee

Seung Min Park

Ki Wook Ohm

Han Shin Youn

Eun Yeong Lee

Boung Ho Min

Il Seon Yoo

Ki Chul Han

Won Suk Jung

Se Young Park

Seung Jun Yeon

Jang Hyeon Lee

Ho Tae Chun

Han Geun Jang

Kwang Yong Lee

Sang Chan Jeong

Woong Hwang

Yun Ho An

Il Gon Park

A power conversion apparatus may include a main converter including a main housing and at least one transformer disposed in an interior of the main housing, a sub-converter including a sub-housing coupled to an upper portion of the main housing and a voltage boost assembly disposed in an interior of the sub-housing, a lower cooling unit provided in a lower portion of the main housing to support the at least one transformer, and an upper cooling unit provided in a lower portion of the sub-housing to support the voltage boost assembly.

Power conversion apparatus

A power supply system for an aircraft and a control method thereof are provided. The power supply system of the aircraft includes a fuel cell configured to generate electrical energy, a converter device configured to supply a voltage generated by the fuel cell to a first motor device for driving the aircraft through a first output terminal and switch a connection with the fuel cell depending on a predetermined driving mode, a battery configured to supply the voltage to a second motor device for driving the aircraft through a second output terminal, the second output terminal being connected with an output node of the fuel cell, and a processor configure to control a connection between the fuel cell and the converter device depending on the driving mode.

Power supply system of aircraft and control method thereof

An embodiment fuel cell device includes a fuel cell, a power controller configured to convert a magnitude of a stack voltage output from the fuel cell and to output the stack voltage having the converted magnitude to a load, and a junction box including a bypass diode that includes an anode coupled to the stack voltage and to a voltage input terminal of the power controller and a cathode coupled to a voltage output terminal of the power controller and to the load, wherein the voltage output terminal of the power controller is configured to carry a voltage having the converted magnitude.

Fuel cell device

A fuel cell system includes a fuel cell connected to a main bus through a converter, an auxiliary power supply connected in parallel to the main bus at an output side of the converter, and a controller electrically connected to the converter and configured to control the converter to adjust output of the fuel cell by changing a target input voltage of the converter, configured to increase the target input voltage of the converter when an output voltage of the converter is a set maximum value or more than the set maximum value, and configured to decrease the target input voltage of the converter when the output voltage of the converter is a set minimum value or less the set minimum value. Furthermore, a method of controlling the fuel cell system is disclosed.

Fuel cell system and control method thereof

A method of processing sensor information of the present disclosure includes generating, based on location information of a target object and low-level sensor information detected from the target object at the corresponding location, a ground truth for each of sensor beam sections detecting the target object, and generating, based on the ground truth, a sensor performance map containing information on accuracy of low-level sensor information detected in the corresponding sensor beam section.

Method and apparatus for processing sensor information and recording medium storing program to execute the method

A fuel cell vehicle includes a cell stack, a DC level converter, an output unit, a first switching unit disposed between a positive output terminal of the DC level converter and a positive input terminal of the output unit, a second switching unit disposed between a negative output terminal of the DC level converter and a negative input terminal of the output unit, a resistor and a third switching unit connected to each other in series between the positive output terminal of the DC level converter and the negative output terminal of the DC level converter, a fourth switching unit disposed between a contact point between the resistor and the third switching unit and the positive input terminal of the output unit, and a controller for controlling switching operation of the first, second, third and fourth switching units according to an operation mode.

Fuel cell vehicle

An embodiment sensor information fusion method includes estimating, by a host vehicle, reliability of shared sensor fusion information received from a neighboring vehicle, the shared sensor fusion information being generated by the neighboring vehicle, and generating, based on the estimated reliability, fusion track information of an object located near the host vehicle or the neighboring vehicle using host vehicle sensor fusion information generated by the host vehicle and the shared sensor fusion information.

Method and apparatus for fusing sensor information and recording medium storing program to execute the method

Disclosed herein is a method for manufacturing a hydrogen sensor, the method comprising the steps of: disposing a thin film made of a transition metal or an alloy thereof on a surface of elastic substrate; applying a tensile force in a repetitive manner to the elastic substrate to form a nanocrack on the thin film disposed on the surface of the elastic substrate; and injecting hydrogen gas into the formed nanocrack and then removing the hydrogen gas to form a nanogap, wherein the tensile force in the step of forming a nanocrack is applied to an extent that the elastic substrate has a tensile strain of 25% to 100%.

Hydrogen sensor and hydrogen sensor manufacturing method

A fuel cell system power supply includes: a fuel cell stack configured to react hydrogen and oxygen in air with each other in order to generate electricity; a high-voltage converter configured to boost output power of the fuel cell stack; and a high-voltage junction unit configured to transmit the output power of the fuel cell stack to the high-voltage converter and to receive high-voltage power from the high-voltage converter. The high-voltage junction unit has a structure configured to simultaneously accommodate an output terminal of the fuel cell stack and an input terminal of the high-voltage converter. Consequently, the assembly structure of the high-voltage junction unit may be simplified, whereby productivity may be improved. In addition, maintainability may be improved, whereby it is possible to efficiently maintain a fuel cell vehicle.

High-voltage junction unit of fuel cell system and power supply of fuel cell system including the same

Provided is a method for preparing a chlorinated polyvinyl chloride resin, and more particularly, a method for preparing a chlorinated polyvinyl chloride resin including a neutralization process for neutralizing to pH of 2 to 5 using metal hydroxide as a first neutralizing agent a), and completing neutralization using a carbonate-based compound as a second neutralizing agent b), wherein residual hydrochloric acid in pores of the chlorinated polyvinyl chloride resin obtained by chlorination of a polyvinyl chloride or a vinyl chloride-based copolymer may be efficiently removed, and thermal stability and extrusion appearance of processed articles may be improved.

Method for preparing chlorinated polyvinyl chloride resin

A vehicle includes a boost converter configured to bypass or to convert a stack voltage and output the bypassed or converted stack voltage as a first voltage in response to a first control signal, a first switching unit configured to be switched in response to a first switching signal to form a main path to supply the first voltage to a battery, a buck converter configured to convert and output a level of the first voltage to the battery as a second voltage in response to a second control signal, a second switching unit configured to be switched in response to a second switching signal to form a bypass path to supply the second voltage to the battery, and a controller configured to inspect a level of voltage charged in the battery and generate the first and second control signals and the first and second switching signals based thereon.

Vehicle including fuel cell, battery-charging method for the vehicle, and recording medium having recorded therein program for executing the method

A fuel cell vehicle includes a fuel cell, an air compressor configured to draw in and discharge air, a cooler configured to cool air discharged from the air compressor, a humidifier configured to humidify air cooled by the cooler and to supply the humidified air to the fuel cell, and a system frame on which the fuel cell is disposed. The system frame accommodates at least a portion of each of the cooler and the humidifier therein.

Fuel cell vehicle having small space occupied by humidifier and cooler

Disclosed herein is a battery charger for electric vehicle includes a motor configured to generate power for driving the electric vehicle, an inverter configured to provide the power to the motor, an AC power input terminal configured to be input at least one AC power of single phase AC power and polyphaser AC power from a slow charger, a power factor corrector configured to include a plurality of full bridge circuits through which the AC power is input through the AC power input terminal, a link capacitor configured to connect in parallel with the power factor corrector, a switch network configured to include a first switch SW A provided to connect any one of a plurality of AC power input lines and a neutral line constituting the AC power input terminal with the power factor corrector, and a second switch provided to transfer one of a direct current power input from a quick charger and an alternating current power input from a slow charger to a high voltage battery and a controller configured to control the power factor corrector and the switch network according to the conditions of the AC power and the DC power.

Battery charger for electric vehicle

Disclosed are an occupancy distance map (ODM) information reliability determination system and method and a vehicle using the same. The system includes a signal conversion unit configured to receive a plurality of sensing signals and to perform signal processing, a calculation unit configured to calculate state information of a nearby vehicle detected from processed signals, a sensor fusion track output unit configured to output sensor fusion track information based on the calculated state information of the nearby vehicle, an ODM output unit configured to output ODM information based on the calculated state information of the nearby vehicle, an ODM fusion unit configured to generate sensor fusion ODM information by performing sensor fusion with respect to the ODM information, and an ODM information reliability determination unit configured to determine reliability of the sensor fusion ODM information by confirming association between the sensor fusion track information and the sensor fusion ODM information.

ODM information reliability determination system and method and vehicle using the same

A method for performing switching synchronization of a bridgeless rectifier in an electric vehicle (EV) wireless power transfer system may include receiving, by an EV control module, an input voltage of a transmission-side resonance circuit from a transmission-side of the EV wireless power transfer system; calculating, by the EV control module, a phase difference between the received input voltage and a voltage or a current selected in the bridgeless rectifier and a reception-side resonance circuit; and controlling, by an EV control module, switching time points of switches included in the bridgeless rectifier to decrease the calculated phase difference. The reception-side resonance circuit may be electromagnetically coupled to the transmission-side resonance circuit, and the bridgeless rectifier may be configured to rectify an output of the reception-side resonance circuit and to output the rectified output.

Method and apparatus for performing switching synchronization for bridgeless rectifier in electric vehicle wireless power transfer system

Growing community of inventors

Yongin-si, South Korea

Woo Young Lee