Hyundai Motor Company

Korea Research Institute of Chemical Technology

Kia Motors Corporation

Kia Corporation

Sungkyunkwan University

Samsung Total Petrochemicals Co., Ltd.

Sk-materials Co., Ltd.

Zeobuilder Co., Ltd.

Nf Co.,ltd

Beom Sik Kim

Sang Cheol Shin

Ji Woong Jang

Jong Hu Yoon

Tae Sun Chang

Mi Ok Kim

Kang Ho Jeong

Jong Kyong Lim

Suk Hyun Lim

Jeong Kwon Suh

Jae Hyun Park

Ji Hoon Park

Jong Wook Bae

Ki Young Jang

Jin Hwan Jung

Chul Ung Kim

Yun Ho Jeong

Kwang Joo Kim

Choong Kyun Yeom

Kyung Ho Kim

Jae Hoon Choi

Suk Hyung Kim

Jung Min Lee

Ki Jong Lee

Kyung In Min

Yu Seok Kim

Do Sung Hwang

Iljeong Heo

Tae Hwan Chung

Beom Joo Kwon

Jung Hyun Park

Hyun Soo Park

Woo Sung Kim

Jung-Min Lee

Hee Tae Yang

Jong Hyun Yoon

So Jin Lee

Won Young Kim

Jin Suk Lee

Hak Jun Kim

Ho Sik Chang

Young Woo You

Soo Min Kim

Bo Ram Yang

Dong Gil Ha

Won Wook So

Hui Tae Yang

Ho Jeong Chae

Soon Yong Jeong

Hyo Sik Moon

Hee Sung Moon

Soo Bok Lee

Jung Je Woo

Hyun Ku Park

Hyung Ju Kim

Eung Joo Kim

Byung Ki Park

Jeong-Rang Kim

Taeg Young Ahn

Tae Hwan Park

In Joon Park

Shin Hong Yook

Ji Na Choi

Eun-ho Sohn

Myeong Seob Choi

Jin Hee Lee

Ji Sook Hong

You In Park

Ha Rin Lee

Hong Suk Kang

Il Jeong Heo

Ji Soo Nam

Junghun Kwak

Sang Bong Oh

Byunghyang Kwon

Jeehoon Han

Hong Chan Ahn

Hyo Sang Yun

Jong An Kim

Won Young Lee

A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.

Motor-driving apparatus

Proposed is a carbon dioxide reforming (CDR) reactor having a multilayered catalyst layer arrangement for preventing catalyst deactivation, wherein, in the reactor in which a CDR reaction for reacting methane (CH) with carbon dioxide (CO) to reform the methane into a synthesis gas including carbon monoxide (CO) and hydrogen (H) is performed, in order to prevent a case where an endothermic reaction between a catalyst and heated reactant gas supplied to the reactor gradually causes the temperature of the reactant gas to decrease and the catalyst is deactivated by cokes generated due to the decrease in temperature of the reactant gas, CDR catalysts in the reactor are arranged in multiple layers in a multilayered structure to allow the reactant gas temperature that has decreased due to the endothermic reaction to be restored in spaces between the catalyst layers.

CDR reactor having multilayered catalyst layer arrangement for preventing catalyst deactivation

A communication error diagnosis apparatus for a vehicle, a system including the same and a method thereof may provide a communication error diagnosis apparatus including: a processor configured to transmit a request message including diagnostic identifiers for diagnosing a plurality of controllers that perform vehicle functions and sequence identifiers of the controllers to the controllers depending on a sequence to receive response messages, and configured to analyze vehicle communication errors based on the response messages received from the controllers; and a storage configured to store data and algorithms driven by the processor.

Apparatus for diagnostics communication error of vehicle, system having the same, and method thereof

The present invention provides an integrated system comprising: an electrocatalysis device, in which an oxidation reaction is carried out at an anode by an electrocatalysis of glycerol, and at a cathode hydrogen is produced through a reduction reaction; and a chemical catalysis device for producing butene oligomers from lignocellulosic biomass through a hydrogenation process, wherein the hydrogen produced by the electrocatalysis device is used for the production of the butene oligomers by the chemical catalysis device, and a thermal energy of the electrocatalysis device and the chemical catalysis device is exchanged with each other. The integrated system according to the present invention can reduce the cost of materials of a process for preparing butene oligomers by using hydrogen, which is a byproduct of a process for preparing glycerol derivatives, as a material of a process for preparing the butene oligomers through the integration of materials and energy from the processes for preparing glycerol derivatives and butene oligomers, and can obtain an effect of reducing energy costs by greatly reducing energy required in an integrated process by supplying, as a part of a thermal energy required at the process for preparing glycerol derivatives, the waste heat of the process for preparing the butene oligomers through the construction of a thermal energy integration network.

Integrated system comprising electrocatalysis device of glycerol and chemical catalysis device of biomass

A method and system for diagnosing a communication channel state in an in-vehicle network includes requesting information on devices connected to a controller, receiving the information on the connected devices from the controller, requesting channel state diagnostics for a channel to which, among the devices connected to the controller, a diagnostics target device is connected, and receiving channel state diagnostics result from the controller, where the channel state diagnostics result includes diagnostic results of some of the devices connected to the controller.

Method and system for diagnosing communication channel state in in-vehicle network

The present disclosure relates to an in-vehicle communication device and a time synchronization method thereof. The in-vehicle communication device includes a clock generator for generating a clock signal, a local counter for counting the number of pulses of the clock signal, a transceiver for receiving a message via an in-vehicle communication network, and a processor that determines whether the message received via the transceiver is a synchronization message, extracts synchronization time information from the synchronization message, and adjusts a count value of the local counter based on the synchronization time information to perform time synchronization.

In-vehicle communication device and time synchronization method thereof

The present invention relates to a preparation method of trifluoroamine oxide comprising the steps of producing an intermediate product by reacting nitrogen trifluoride and nitrous oxide in the presence of a reaction catalyst; and producing trifluoroamine oxide by reacting the intermediate product with sodium fluoride in vacuum condition up to 100 mmHg.

Preparation method of trifluoroamine oxide

An inverter system for a vehicle includes: an energy storage device configured to store electrical energy, a first inverter including a plurality of first switching elements and configured to convert the electrical energy stored in the energy storage device into alternating-current (AC) electric power, a second inverter including a plurality of second switching elements different from the plurality of first switching elements, a motor configured to be driven by receiving the AC power converted by the first inverter and the second inverter, current sensors disposed between the first inverter and the motor and the second inverters and the motor, respectively, and configured to detect a current input to the motor, and a controller configured to generate a pulse width modulation (PWM) signal for controlling driving of the motor.

Inverter system for vehicle

The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.

Solid-phase catalyst for decomposing hydrogen peroxide and method for producing same

An inverter system for a vehicle may include an energy storage device configured to store electrical energy; a first inverter including a plurality of first switching elements, and converting the energy into AC power; a second inverter including a plurality of second switching elements different from the first switching elements, being connected to the energy storage device in parallel with the first inverter, and converting the energy into AC power; a motor driven by receiving the AC power; a PWM signal generating device configured to generate a reference Pulse-width modulation (PWM) signal for controlling driving of the motor; and a PWM signal converting device configured to convert the reference PWM signal into both a first PWM signal input into the first inverter to drive the first switching elements, and a second PWM signal input into the second inverter to drive the second switching elements.

An inverter system for vehicles according to the present disclosure may include: an energy storage storing electrical energy; a first inverter which includes a plurality of first switches and converts the energy stored in the energy storage into AC power; a second inverter which includes a plurality of second switches, which are different from the first switches, is connected in parallel with the first inverter to the energy storage and converts the energy stored in the energy storage into AC power; a motor driven by receiving the AC power converted through the first inverter and the second inverter; and a controller for controlling operations of the first inverter and the second inverter based on power requirements of the motor.

Inverter system for vehicle and control method thereof

Growing community of inventors

Gyeonggi-do, South Korea

Beom Sik Kim