Samsung Electronics Co., Ltd.

Yura Corporation Co., Ltd.

Hyundai Motor Company

Kia Motors Corporation

Samsung Sdi Co., Inc.

Snu Rdb Foundation

Pusan National University

Ho Kyung Kim

Young Shin Kim

Jae-Han Lee

Jae-chul Park

Sang Ho Shin

Chae-hun Lee

Dae-kun Yoon

Jae-Hyun Shim

Ki-Soo Lee

Joo-Han Song

Se-Hee Lee

Hyeon-Ah Ju

Dae Hwan Kwon

Jin W Seo

Myoung Su Cho

Won Kyu Lee

Bum Kyo Jung

Sang Ryong Lee

Dong Kyun Jeong

Yoon-Hee Lee

Yeong Gil Shin

Hae Sung Nam

A high-voltage relay system for a vehicle is provided. The system includes a relay, a first contact part positioned between a battery and a power converter, a voltage application unit, and a second contact part positioned between the voltage application unit and the ground. A first resistor is connected, at a first end thereof, in series to a second end of the second contact part and connected, at a second end thereof, to the ground. A controller operates the relay in response to an ON/OFF control signal to short-circuit or open the contacts at both ends of the first contact part or the contacts at both ends of the second and determines whether the relay fails based on the type of the ON/OFF control signal and the voltage value between both ends of the first resistor.

High-voltage relay system for vehicle and diagnostic method therefor

A power relay assembly for an electric vehicle and a driving method thereof according to an embodiment of the present invention connect the first switching unit and the second switching unit connected in series with each other in parallel with the relay switch, and by allowing the first switching unit and the second switching unit to include semiconductor switching elements and diodes therein, not only when power is supplied from the battery to the load side, but also when charging is performed by supplying a charging current to the battery, it is possible to supply or cut off power while preventing sparks and arcs at the relay contact point.

Power relay assembly for an electric vehicle and driving method thereof

A positive active material for a rechargeable lithium battery includes a lithium intercalation compound; and lithium titanium oxide represented by Chemical Formula 1 on the surface of the lithium intercalation compound surface.LiMTiO.&#x2003;&#x2003;Chemical Formula 1In the Chemical Formula 1,

Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same

A power relay assembly driving apparatus includes a relay unit which switches a connection between a terminal of a battery unit and a terminal of an inverter unit, a switching unit connected in parallel to the relay unit between the terminal of the battery unit and the terminal of the inverter unit, and a battery management system (BMS) which controls the switching unit upon a power cutoff of the battery unit in order to form an equipotential between the relay unit and the terminal of the inverter unit, and controls the relay unit in order to electrically separate the terminal of the battery unit and the terminal of the inverter unit from each other.

Power relay assembly driving apparatus and driving method thereof

Provided are a method and apparatus of filtering geographical data. The method may include selecting a map region to be retrieved, receiving a retrieval object and a retrieval condition, outputting a trapezoidal interface, verifying a threshold corresponding to a height of the trapezoidal interface for each position of the map region, filtering the retrieval object satisfying the threshold or more or less in each position of the map region to extract the filtered object, and displaying the filtered object on the map region to output the displayed object.

Apparatus and method of filtering geographical data

A method of calibrating a first threshold voltage that is a reference of X-ray detection for each unit cell of a plurality of unit cells of an X-ray detector may comprise detecting an X-ray by using a plurality of second threshold voltages for each of a plurality of X-rays having spectra at different energy levels; determining a correspondence relationship between energies having a maximum intensity in the spectra of X-rays and third threshold voltages at which a maximum number of photons having a same energy intensity are detected; and/or calibrating the first threshold voltage based on the determined correspondence relationship.

Methods of calibrating X-ray detectors

Sealing structure for use in creating a seal between an elevator drive shaft and a loadlock chamber includes a base fastened over a hole in the bottom wall of the loadlock chamber, a fixed member fastened to an upper part of the base, a seal housing spaced above the fixed member, a cap in the form of a flexible bellows having a first end adhered to an upper surface of the fixed member and a second end adhered to a lower surface of the seal housing, one or more support shafts having upper and lower ends pivotally connected to the seal housing and the fixed member outside the cap, a seal seated in the seal housing and having an inner circumferential surface contacting the outer circumferential surface of the elevator drive shaft, and a seal cover fixed to an upper part of the seal housing. According to the present invention, uniform pressure is maintained between the shaft and the seal during assembly and operation of the apparatus. Thus, a seal is always maintained between the elevator drive shaft and the bottom wall of the loadlock chamber.

Loadlock apparatus and structure for creating a seal between an elevator drive shaft and the loadlock chamber thereof

Growing community of inventors

Yongin-si, South Korea

Ho Kyung Kim