Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Other

Coway Co., Ltd

Sambo Motors Co Ltd

Cupix, Inc.

Yuhan Corporation

Gachon University of Industry-Academic Cooperation Foundation

Soosan Int Co., Ltd.

Rudacure Corporation

Cat Beam Tech Co., Ltd.

Jun Young Park

Seong Cheol Jeong

Dae Jong Kim

Jae Won Jung

In Tae Park

Jong Gyun Kim

Hak Yoon Kim

Dong Woo Kim

SeockHoon Bae

Hyun Jin Choi

Nari Lee

Jun Young Kim

Soon Woo Kwon

Kyu Il Lee

Ki Hong Kim

Sung Gone Yoon

Min Su Kang

Moo Young Song

Ji In Hong

Hyoung Bae Park

Byung Hyun Choi

Jun Hwan Kim

Ka Ram Shin

Jun Won Park

In Hwan Lim

Sung Jean Park

Young Hyon Park

Seung Hyun Seo

Hoi Chan Jeong

Hae Yong Jo

Dongwoo Khang

Jehwang Ryu

Seung Jun Yeo

Jong Min Lim

Woo Seob Kim

Jeung Sun Ahn

Moonkyoo Kong

Jin Hyoung Lee

Jae Ik Jung

Hee Mang Lee

Sang Hyeok Jeong

Myung Ki Chung

Ji Gyeon Kim

Jun-Young Park

Proposed are a fuel cell system and a method of controlling the fuel cell system. The fuel cell system may comprise a discharge valve configured to adjust a flow rate between an inlet and an outlet, connected at the inlet to a water trap connected to an anode of a fuel cell stack, and connected at the outlet to an external exhaust line, and a controller configured to derive an error value on the basis of a difference between condensate water production amount and discharge amount of the anode of the fuel cell stack when the discharge valve is in an open state, configured to correct the condensate water production amount of the anode on the basis of the error value when the discharge valve is in a closed state, and configured to open the discharge valve when the corrected condensate water production amount exceeds a predetermined first reference value.

Fuel cell system and method of controlling same

Disclosed are a device and a method for controlling a fuel cell system, in which during operation of the fuel cell system, the device and method determine a minimum motoring current limit value applied to a motor for driving a fuel cell vehicle by varying an output current limit threshold value of the fuel cell stack by determining an available output current of the stack and by varying an available voltage lower limit threshold value of the stack by determining an available operating voltage of the stack, thereby preventing the fuel cell vehicle from rattling due to excessive limitation of output current of the stack. They also control the pressures of an anode and a cathode of the stack by monitoring whether the performance of the stack is degraded as limitation of output current of the stack is suppressed, thereby suppressing degradation of the performance of the stack.

Device and method for controlling fuel cell system

Provided is a composite nanoparticle in which an immunogenic plasma protein is coated on the surface of the nanoparticle due to the enhanced immune activity function caused by structural changes in immunogenic protein coronas.

Drug delivery system with enhanced immune active function

In an embodiment a vehicle body structure includes a front pillar tube positioned inside of each of a pair of front pillars in a vehicle and a center pillar tube positioned inside of each of pair of center pillars of the vehicle, wherein the front pillar tube and the center pillar tube cross each other.

Vehicle body structure

Disclosed is a multi-fuel cell system and control method thereof in which when a plurality of fuel cell units electrically connected to each other, each including a fuel cell, an air compressor, and a humidifier, is cold-started, a first fuel cell unit, one of the plurality of fuel cell units, generates power in a defrost mode, an air compressor of a second fuel cell unit, another fuel cell unit, is driven by providing the power generated by the first fuel cell unit to the second fuel cell unit, and the first fuel cell unit generates power in a heating mode and the second fuel cell unit generates power in the defrost mode when the defrosting of the first fuel cell unit is completed.

Multi-fuel cell system and control method thereof

Disclosed is a field emission-type tomosynthesis system including a vacuum body having a space therein; a plurality of sources provided inside the body, wherein each of the sources emits a plurality of electrons; and a plurality of anodes disposed inside the body to face the sources and responsible for emitting a plurality of X-rays, wherein each of the anodes faces a corresponding source among the sources, and the electrons collide with each of the anodes to generate X-rays, wherein the X-ray emission angle of each of the anodes is capable of being independently adjusted so as to focus the X-rays emitted toward an object located outside the body. With this configuration, a plurality of X-rays is focused on an object and is emitted to the object to obtain information, and the information is synthesized, thereby improving the reliability of information about the object.

Field emission-type tomosynthesis system, emitter for field emission-type tomosynthesis system, and method of manufacturing emitter

Provided are a method and apparatus for identifying the presence of a 3D object using an image. According to the method and the apparatus, two-dimensional images are used to identify whether a 3D object exists in the images. According to the method and apparatus for identifying the presence of a 3D object by using an image, the presence of a 3D object in space can be accurately and quickly identified by using two-dimensional images, leading to higher productivity.

Method and device for identifying presence of three-dimensional objects using images

Water purifier

A solenoid valve includes a plunger configured to be movable in two opposite directions, a damper member inserted into the plunger and having at least a part protruding outward from the plunger, and a pilot member disposed in a lower region of the plunger and having a pilot flow path formed therein, in which the damper member comes into close contact with the pilot member and closes the pilot flow path when the plunger moves downward by a predetermined distance toward the pilot member.

Solenoid valve

The present disclosure relates to a solenoid valve including: a valve seat having a valve flow path; a plunger; a support member disposed at an end of the plunger facing the valve flow path, the support member having an insertion hole into which the valve seat is inserted, and the support member being connected to a spring member configured to elastically support a movement of the plunger; a valve member seated in the support member; an inclined guide surface provided along a periphery of the valve seat; and an inclined recess provided in an inner wall surface of the insertion hole facing the inclined guide surface, in which the inclined recess and the inclined guide surface collectively define a movement path that communicates with the valve flow path, thereby obtaining an advantageous effect of improving stability and reliability.

Proposed are a fuel cell system and a method of controlling the fuel cell system. The fuel cell system includes: a hydrogen supply unit connected to a hydrogen inlet side of a fuel cell stack, with a supply valve and a sensor being provided in the hydrogen supply unit; a hydrogen discharge unit connected to a hydrogen outlet side of the fuel cell stack, with a water trap and a purge valve being provided in the hydrogen discharge unit; and a controller configured to calculate an amount of hydrogen discharged through the purge valve from an amount of hydrogen supplied to the fuel cell stack and an amount of hydrogen consumed therein, and to perform compensation control of the supply valve when the amount of the discharged hydrogen is at or above a reference value.

Provided are a method and system for correcting an offset of a hydrogen pressure sensor. The method includes constantly supplying the hydrogen to the fuel cell stack, determining whether an offset of the hydrogen pressure sensor needs to be corrected based on a stop time before the fuel cell stack starts and a magnitude of an output voltage of the fuel cell stack, calculating an offset correction value when the offset of the hydrogen pressure sensor needs to be corrected, and correcting the offset of the hydrogen pressure sensor and performing the starting of the fuel cell stack.

Method and system for correcting offset of hydrogen pressure sensor

A method and system of controlling hydrogen purge are provided. The method includes estimating an air supply rate supplied to a fuel cell stack and then executing hydrogen purge based on the estimated air supply rate.

Method and system for controlling hydrogen purge

A sound source playback apparatus includes a mounting unit, to which a sound source device may be attached and detached, and a control unit that recognizes tag information of the sound source device and performs authentication when the sound source is attached to the mounting unit, requests sound source data from the sound sources server according to a result of the tag information is authenticated, and playback the received sound source data. Accordingly, the sound source playback apparatus and the sound source playback method using the same allows permanently keep the high quality album and images of a favorite artist on a single purchase and playback a high quality sound source.

Apparatus for playback sound source and method for playback sound source using the same

Disclosed are a deterioration estimation system for the fuel cell, a hydrogen supply system for a fuel cell including the same, and a hydrogen supply method for a fuel cell, the deterioration estimation system including a fuel cell which receives hydrogen gas and oxidizing gas respectively supplied to an anode side and a cathode side thereof to generate electrical power, a hydrogen supply line which is connected to the anode side of the fuel cell and supplies gas containing hydrogen gas to the fuel cell, a hydrogen supply valve which is located between the hydrogen supply line and a hydrogen tank, supplies, when opened, hydrogen gas stored in the hydrogen tank to the hydrogen supply line, and blocks the supply of the hydrogen gas when closed, and a deterioration estimating unit which estimates the deterioration state of the fuel cell, based on the opening and closing control of the hydrogen supply valve or a change in the pressure in the hydrogen supply line.

Deterioration estimation system for fuel cell, hydrogen supply system for fuel cell including same, and hydrogen supply method for fuel cell

Growing community of inventors

Suwon-si, South Korea

Jun Young Park