Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Korea Advanced Institute of Science and Technology

Korea Institute of Science and Technology

Yura Corporation Co., Ltd.

Industry-academy Cooperation Foundation, Scnu

Tae Won Lim

Byung Ki Ahn

Sang Yeoul Ahn

Sae Hoon Kim

Jong Hyun Lee

Sung Keun Lee

Soo Whan Kim

Bo Ki Hong

Jae Jun Ko

Heung Yong Ha

Ki Chun Lee

Seong-Ahn Hong

Keun Je Lee

Ho Young Lee

Young Min Kim

Sung Ho Lee

Sang Wook Park

Jung Do Suh

In Hwan Oh

Ki Young Lee

Dai Gil Lee

Sang Hyun Cho

Dong Hoon Nam

Jong Myeon Lee

Ik Jae Son

Yong Sun Park

Sangbaek Park

Seong Su Kim

Jong Jin Yoon

Se Joon Im

Ha Na Yu

Hyoung Geun Kwon

Hyun Seung Lee

Seung Chan Oh

Kyu Taek Cho

Won Jin Jo

Hyun Young Kim

Je Hyun Kim

Sang-Yeoul Ahn

In Uk Hwang

Yong-Chul Lee

In-Whan Oh

Su Hyun Choi

Chang Won Jung

Kwon Pil Park

Jea Suk Park

Seokyoul Yang

Changjae Lee

A power supply system for an electric vehicle for autonomous driving may be capable of stabilizing power supply to power electric parts and indoor parts even when short circuit occurs in one or more nodes by variously configuring an architecture circuit for power supply to the PE parts and the indoor parts using one or more switching elements and a short-circuit detector associated with the one or more nodes.

Power supply system for electric vehicle

A solid-state hydrogen storage device includes a first storage for storing a reversible solid-state hydrogen storage material, a reactor disposed in the first storage to enable a hydrolysis reaction of a non-reversible solid-state hydrogen storage material to be performed therein, and a fuel cell stack, wherein the non-reversible solid-state hydrogen storage material is stored in the reactor, and wherein the non-reversible solid-state hydrogen storage material releases heat when the hydrolysis is performed.

Solid state hydrogen storage device

Autonomous diesel vehicles and control methods thereof are disclosed. An autonomous vehicle may include a peripheral information collecting unit configured to collect peripheral information necessary for autonomous travelling through an image camera and a laser scanner, a main control unit configured to control the autonomous travelling with reference to the peripheral information collected by the peripheral information collecting unit, a passenger monitoring unit configured to check whether a passenger exists inside the vehicle through a sensor and transmit a result of the check to the main control unit, and an engine control unit configured to control driving of an engine and injection of fuel of an injector according to a control instruction of the main control unit. When the passenger is inside the vehicle, the main control unit performs a pilot injection control, and when the passenger is not inside the vehicle, the main control unit omits the pilot injection control.

Autonomous vehicle and control method thereof

Disclosed herein is a method of detecting defects of a fuel cell membrane-electrode assembly which comprises a gas diffusion layer, a catalyst layer and an electrolyte membrane. The method includes steps of: supplying gas to a first side of the membrane-electrode assembly; deducing a pressure of the supplied gas and a permeation rate of the gas permeating to a second side of the membrane-electrode assembly and then deducing an interface pressure between the electrolyte membrane and the gas diffusion layer of the membrane-electrode assembly using the deduced pressure of the supplied gas and the permeation rate; calculating a gas permeability of the electrolyte membrane using the deduced values of the pressure of the supplied gas and the permeation rate and a predetermined outlet pressure at the second side of the membrane-electrode assembly; and determining a defect state of the electrolyte membrane using a variation in the calculated gas permeability according to a change in the pressure of the supplied gas.

Method and apparatus for detecting defects of fuel cell membrane-electrode assembly

A system for activating a fuel cell includes a flow meter for measuring the amount of water discharged from an outlet of the air electrode and an outlet of the fuel electrode; a pressure sensor for measuring the pressure at the respective outlets; and a back pressure regulator receiving flow values measured by the flow meters and pressure values measured by the pressure sensors, which are fed back from a controller, and regulating a pressure difference (&#x394;P=P&#x2212;P) to be a value greater than 0. With the system, the activation time of a fuel cell and the amount of hydrogen used for the activation can be reduced, thus improving the productivity and manufacturing cost.

System and method for activating fuel cells

A pinhole detection system of a fuel cell element unit including a density measurement module that calculates a density of a fuel cell element unit using weight and volume data measured from electronic weight balance and 3D scan type volume integrator. Photon energy ranges of X-ray beam and window species of the pinhole detection system automatically are selected from Groupor Groupaccording to the density reference point for a fuel cell element, and a stage on which a fuel cell element unit is disposed to be detected. A drive portion that moves the stage to rotate the fuel cell element unit. An X-ray source is disposed at one side of the stage to apply X-ray to the fuel cell element unit that rotates. An image detector detects an X-ray penetrating the fuel cell element unit, and a computer tomography that reconstructs a three dimensional tomogram.

Pinhole detection system of fuel cell

The present invention relates to a device and a method for detecting a pin hole in a part of a fuel cell stack part to accurately detect the presence of pin holes of stack parts thereby ensuring quality of a fuel cell stack. That is, the present invention provides a system for detecting a pin hole in parts of a fuel cell stack that allows for quality assurance of the fuel cell stack and prevents defective parts from being used, by examining each fuel stack part, which largely influence the quality of the fuel cell stack, using an X-ray device and a vision system, in order to determine the presence of a pin hole in the parts, and a method thereof.

System for detecting pin hole of fuel cell stack parts

System and method for activating fuel cell

The present invention provides an apparatus and method for determining deterioration of a fuel cell, the method including measuring in real time fluoride ion concentration or pH value of outflow water from a fuel cell stack during operation in a fuel cell vehicle, calculating a fluoride emission rate from the measured value and, if the calculated fluoride emission rate is out of a predetermined normal range, determining deterioration of an electrolyte membrane of the fuel cell stack.

Apparatus and method for determining deterioration of a fuel cell and method for preventing deterioration of the same

The present invention provides a fuel cell separator formed of a continuous carbon-fiber composite, and a method for manufacturing the same.

Fuel cell separator and method for manufacturing the same

A composite gasket for fuel cell stack comprises two rows of beads and a support which can improve mountability and sealing property and reduce the assembly pressure by using materials having low hardness with reduced volume. This invention also relates to a structure for the assembly of the composite gasket.

Unit cell structure comprising composite-gasket for fuel cell stack

A manufacturing method of Membrane-Electrode-Gasket Assemblies (MEGAs) used for polymer electrolyte fuel cells (PEFCs) is described wherein a polymer electrolyte membrane is formed directly on a electrode. A typical PEFC is constructed by assembling membrane-electrode assembly (MEA), gaskets, and separators. According to the invented method, PEFC is fabricated by assembling separators and MEGA, into which MEA and a gasket are integrated. Compared to the conventional MEA-gasket assemblies, MEGAs are easy to handle and can be mass-produced via a manufacturing process in a series. Moreover, employing MEGAs improves PEFC performance since the membrane thickness of MEGAs is lower than that of the conventional MEA-gasket assemblies.

Method of preparing membrane-electrode-gasket assemblies for polymer electrolyte fuel cells

A method for operating a polymer electrolyte membrane fuel cell at temperatures below the freezing point of water and an apparatus thereof are provided to prevent damage and performance degradation of the membrane-electrode assemblies. Non-humidified gas flows for several seconds before temperature of the polymer electrolyte membrane fuel cell falls below the freezing temperature of water when operation of the polymer electrolyte membrane fuel cell stops. Simultaneously, anode of the polymer electrolyte membrane fuel cell is filled with a solution having a low freezing point to prevent the temperature of a polymer electrolyte membrane fuel cell falling below the freezing point of water due to the lower ambient temperature in the winter. When the polymer electrolyte membrane fuel cell is restarted, the cell performance is not degraded reflecting that the present invention stably preserves the fuel cell.

Method and apparatus for operating polymer electrolyte membrane fuel cell below the freezing point of water

Growing community of inventors

Seoul, South Korea

Tae Won Lim