Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Samsung Electro-mechanics Co., Ltd.

Erae Ams Co., Ltd.

Korea Institute of Industrial Technology

Korea Meteorological Administration

Hyundai Motor Corporation

Korea E & S Co., Ltd.

Jae Won Jung

Kyu Il Lee

Young Bok Yoon

Nam Ki Park

Dae Jong Kim

Sung Gone Yoon

Seong Cheol Jeong

Sang Uk Kwon

Nam Woo Lee

Young Hwan Kwon

Jong Gyun Kim

Kang Sik Jeon

Seong Pil Ryu

Sun Soon Park

Soon Seok Kang

Moo Young Park

Hwan Gong Moon

Ho Cheol Son

Do Hoon Lee

Sang Wook Han

Jong Jin Lee

Jun Young Park

Young Hwan Shin

Jin Ku Cho

Bo Ra Kim

Yong Hwan Kim

Sang Yong Kim

Baek Jin Kim

Jae Yeong Yoo

Dong Kyu Lee

Seung Heon Lee

Se-Hun Jung

Ja Ho Koo

Seong Kyu Seo

Hyung Gi Ha

Young-Kwang Kim

Sang Hyeup Lee

Duck-Moo Jung

Min Young Choi

Jae Soung Lee

Chul Kyu Lee

Dong Hun Lee

Hyun Jae Lee

Soon Woo Kwon

Dong Hoon Kang

Bo Sung Seo

Jae Jun Ko

Soon Il Jeon

Oh Byoung Kwon

Seung Yoon Lee

Dong Yeon Shin

Sung Ho Yang

Ji Tae Kim

Sung Jin Chung

Jae Young Shim

Hyo Jin Park

Byung Gi An

Jun Sup Shin

Hak Yoon Kim

Sung Ho Yoon

Kyuil Lee

Ji Buem Chun

Sae Kwon Chang

Sun Heum Baek

Joung Ho Son

Jae Ho Han

Young Jean Choi

Suk Young Oh

Jai Hyun Ahn

Young Kwang Kim

Sang Hee Chae

Soo Yeon Oh

Cheol Jeon

Ji Sang Park

Young Kyu Shim

Duck Moo Jung

Kyu Ii Lee

Se Hun Jung

Jin Yim Jeong

Kyung Yeub Nam

Seong Ho Son

Ki Ho Chang

Ha Young Yang

Hyeon Seob Kim

Kyung Sik Kim

Se Hyeun Yun

Joo Sub Maeng

Baek Jo Kim

Dong Ryul Kim

Jin Young Bae

Han Na Lee

Kyu-Il Lee

Sung-Gone Yoon

Seong Woong Suh

Min Gon Kim

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

A camera module includes a housing having an internal space, and a first lens module and a second lens module disposed in the internal space and each configured to be movable in an optical axis direction, wherein a first shaft and a first ball member are disposed between the first lens module and the housing, wherein a second shaft and a second ball member are disposed between the second lens module and the housing, and wherein, when moving in the optical axis direction, rolling friction occurs on one of both sides of each lens module, and sliding friction occurs on the other of both sides.

Camera module and mobile device including the same

A device for controlling compensation for an air flow rate upon discharge of hydrogen off-gas and a method for controlling compensation for an air flow rate using the same is an air flow rate control device configured to control a flow rate of air supplied to a fuel cell cathode through an air supply unit of a fuel cell system, wherein the air flow rate control device is configured to determine whether a fuel discharge valve of the fuel cell system is opened and determine a fuel diffusion amount per unit time, wherein the fuel diffusion amount corresponds to an amount of the hydrogen off-gas discharged through the fuel discharge valve and diffused into an air supply unit through a humidifier, and compensate a target air flow rate depending on an oxygen concentration reduction proportion, determined according to the determined fuel diffusion amount per unit time and flow rate information of the air supply unit.

Method for controlling compensation for air flow rate during discharge of hydrogen off-gas in fuel cell system and apparatus using the same

An operation controller of a fuel cell and an operation control method thereof in a system for generating a drive output through a fuel cell and a battery includes a processor for selectively performing a driving stop control of the fuel cell through an operation variable including a required drive output and a load weight.

Operation controller of fuel cell and operation control method thereof

A camera module includes a housing, a reflective member positioned in the housing and changing a direction of light to a direction of an optical axis, a carrier carrying the reflective member and rotatable about a first axis with respect to the housing, and a first ball group disposed between the housing and the carrier, wherein the first ball group includes a main ball member providing the first axis of the carrier, and an auxiliary ball member disposed away from the first axis, and one or both of the housing and the carrier partially accommodates the auxiliary ball member, and includes an auxiliary guide groove extended in a circumferential direction of the first axis.

Folded module and camera module including folded module

A control system for a fuel cell vehicle includes a driving motor of the fuel cell vehicle, a brake system of the fuel cell vehicle, and a controller configured to derive a required target regenerative braking torque when the fuel cell vehicle rolls in an opposite direction to a traveling direction on a slope and, when an available regenerative braking torque of the driving motor is less than the required target regenerative braking torque, control the brake system to generate braking torque by as much as a difference between the required target regenerative braking torque and the available regenerative braking torque.

Control system and method for fuel cell vehicle

An apparatus and method for controlling driving of a vehicle are provided and the apparatus includes a lamp that projects a lamp light onto one of a left floor surface or a right floor surface of the vehicle, a camera that obtains an image of an area onto which the lamp light is projected, and a controller that determines whether to output a warning based on the image of the area onto which the lamp light is projected when the lamp light is projected onto a boundary stone located around at least one of the left floor surface or the right floor surface of the vehicle.

Apparatus and method for controlling driving of vehicle

An apparatus of operating an OTA update for a vehicle includes an input device receiving approval information for approving an OTA update process of a vehicle from a user and an execution device executing one of a first process or a second process in response to the approval information being entered. Each of the first process and the second process includes at least one of a battery charging process of a battery in the vehicle or the OTA update process of the vehicle.

Apparatus for operating OTA update for vehicle, and method thereof

Camera module and reflective member

A reflective module assembly include a housing having an internal space, a first reflective module provided in the housing to change a path of incident light, and a second reflective module provided in the housing to change a path of light emitted from the first reflective module. The first reflective module includes a first reflective member rotatable about a first axis formed by at least two first ball members. The second reflective module includes a second reflective member rotatable about a second axis, perpendicular to the first axis and passing through a rotation axis ball provided at the second reflective module.

Reflective module assembly and camera module including the same

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.

Fuel cell system and method of controlling same

Disclosed are a system and a method for fuel supply control for a fuel cell. The system includes a fuel supply line, a fuel supply valve, a base duty calculator configured to estimate a required supply amount of a fuel gas required for the fuel supply line on the basis of a power generation state of the fuel cell and to calculate a base duty instruction to open the fuel supply valve on the basis of the estimated required supply amount, and a valve controller.

System and method for controlling fuel supply for fuel cell

A device and a method for controlling updates of ECUs of a vehicle are provided. A communication device receives a request for associated software updates of electronic control units (ECUs) arranged within a vehicle, and a controller determines whether to start the vehicle based on a state of charge (SOC) of a battery. The controller performs updates of ECUs in a first group in a start on state of the vehicle, and performs updates of ECUs in a second group in a start off state of the vehicle to complete a software update for a function involving the plurality of ECUs.

Device and method for controlling updates of ECUs of vehicle

A control system and method for preventing a fuel cell from overheating are disclosed. The system includes: a fuel cell that generates electric power through reaction of fuel gas and oxidation gas; a cooling line in which a cooling medium flows and performs heat exchange with the fuel cell; a cooling pump installed on the cooling line and configured to circulate the cooling medium through the cooling line; a cooling controller that controls an operating state of the cooling pump on the basis of the temperature of the fuel cell or the cooling medium; and a power generation controller that limits power generation of the fuel cell on the basis of the operating state of the cooling pump.

Control system and method for preventing overheating of a fuel cell

The present disclosure relates to a method of recovering performance of a fuel cell stack in a fuel cell system of a vehicle. The method includes determining whether the fuel cell stack is in a state in which a stack performance recovery operation is possible based on information collected from the vehicle using a predetermined stack state determination criterion, determining whether the vehicle is in a state in which the stack performance recovery operation is possible based on operation information of a fuel cell system, and performing the stack performance recovery operation upon determining that the fuel cell stack is in the state in which the stack performance recovery operation is possible and that the vehicle is in the state in which the stack performance recovery operation is possible.

Method of recovering performance of fuel cell stack

Growing community of inventors

Gyeonggi-do, South Korea

Jae Won Jung