Hyundai Motor Company

Kia Motors Corporation

Samsung Electronics Co., Ltd.

Kia Corporation

Kiyoung Kwon

Kyoung Pyo Ha

You Sang Son

In Sang Ryu

Ingee Suh

Jin Kook Kong

Young Hong Kwak

Dongkyu Lee

Seung Jae Lee

Wootae Kim

Chulkwi Kim

Jimin Kim

Dongheon Park

Eun Ho Lee

Jin Woo Choung

Soo Hyung Woo

Joo Namkung

Minsoo Kim

Back Sik Kim

Yongwook Kim

Ki-Won Kim

Kiwon Kim

Jihoon Park

Ji-Hyun Park

Eun-Young Kim

Kyoung Joon Chang

Ki Uk Shin

Yongju Yu

Jinkook Kong

Soohyung Woo

Chanwon Lee

Won Geun Lee

Jaewoong Choi

Jei Choon Yang

Jungho Ahn

Saegee Oh

Young Nam Kim

Sihak Jang

Boram Namgoong

Sangeun Kim

Ja-Min Goo

Si-Hak Jang

Dongwon Jung

Hyung-Woo Kim

Yong-Ju Yu

Young Jin Won

Taeyoon An

Jinyoung Jung

Jamin Goo

Sae Gee Oh

Youngnam Kim

Gangheok Kim

Kyunghwan Kim

Taewon Um

Eunho Lee

Younghong Kwak

Yosub Lee

Imsung Lee

Seonghoon Yu

Im-Sung Lee

Inho Oh

Seong-Hoon You

Jinsoon Kim

Kyoungjoon Chang

Yonguk Kim

A continuous variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed and the camshaft is inserted, a guide bracket of which an upper guide boss is formed, an inner wheel transmitting the rotation of the camshaft to the cam unit, a wheel housing of which a guide shaft having a guide thread formed thereto to be movably inserted into the upper guide boss is formed thereto, and of which a tail guide guiding the relative movement of the guide bracket is formed thereto, and the wheel housing into which the inner wheel is rotatably inserted, a worm wheel of which an inner thread engaged with the guide thread is formed on inside thereof and of which an outer thread is formed on outside thereof, and a tolerance adjusting pin inserted into the tolerance adjusting portion.

Continuous variable valve duration apparatus and engine provided with the same

An electronic device includes a housing including a front surface plate, a rear surface plate facing a direction opposite the front surface plate, and a side surface member surrounding a space between the front surface plate and the rear surface plate; at least one attachment member coupled to the side surface member, and removably fastened to a human body, the at least one attachment member including a first attachment member coupled to at least part of the side surface member, and a second attachment member coupled to a position of the side surface member facing the first attachment member; a substrate arranged in the space in parallel with the front surface plate; at least one wireless communication circuit arranged on the substrate; a first conductive pattern electrically connected with the wireless communication circuit, and arranged on the side surface member in proximity to the first attachment member; a second conductive pattern arranged on the side surface member in proximity to the second attachment member; a first conductive member arranged in the first attachment member in proximity to the first conductive pattern to be capacitively coupled with the first conductive pattern; and a second conductive member arranged in the second attachment member in proximity to the second conductive pattern to be capacitively coupled with the second conductive pattern.

Antenna for detecting position of external electronic device and wearable electronic device including the same

According to an embodiment of the disclosure, an electronic device may include a communication interface, a dynamic vision sensor (DVS) to generate bit data for each of a plurality of image frames, based on change in illuminance, a processor electrically connected with the communication interface and the DVS, and a memory electrically connected with the processor. The memory may store instructions, and the instructions may cause the processor to filter out at least a partial frame of the plurality of image frames, based on a ratio of the number of a bit value, which is included in the bit data and corresponds to each pixel, to the number of total pixels constituting each of the plurality of image frames, and recognize a shape of a surrounding object of the electronic device, based on another frame of the plurality of image frames. Moreover, various embodiment found through the disclosure are possible.

Electronic device for recognizing object and method for controlling electronic device

Various embodiments of the present disclosure relate to an electronic device and a method for delivering a message by the same. The electronic device may comprise: a camera; at least one processor functionally connected to the camera; a driving circuitry configured to control moving of the electronic device; and a memory for storing at least one program configured to be executable by the at least one processor, wherein the program comprises instructions that are set to: in response to an input of a message from a sender, activate the camera and capture an image of the sender, analyze the image of the sender for an emotion of the sender, analyze the inputted message for a recipient, determine an output pattern based on the image, determine the recipient based on the inputted message, determine whether the determined recipient is located in a vicinity of the electronic device, and in response to the determined recipient not being located in the vicinity of the electronic device, identify a location of the determined recipient and control the driving circuitry to move the electronic device to the identified location.

Electronic device and method for delivering message by to recipient based on emotion of sender

An electronic apparatus for recognizing a user and a method therefor are provided. The electronic apparatus includes a communication interface, a dynamic vision sensor (DVS), a memory including a database in which one or more images are stored, and at least one processor. The at least one processor is configured to generate an image, in which a shape of an object is included, based on an event detected through the DVS, control the memory to store a plurality of images generated under a specified condition, in the database, identify shapes of the user included in each of the plurality of images stored in the database, and generate shape information for recognizing the user based on the identified shapes. The plurality of images may include a shape of a user.

Electronic apparatus for recognizing user and controlling method thereof

A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust two-stage variable valve duration device, current opening and closing timings of the intake valve and exhaust valve based on the target opening durations. In particular, the exhaust two-stage VVD device switches a current opening duration of the exhaust valve to a first exhaust opening duration or a second exhaust opening duration which is shorter than the first opening duration based on the target opening duration of the exhaust valve.

Method for controlling of valve timing of continuous variable valve duration engine

A system of controlling an engine includes: an engine including a combustion chamber, an intake valve, an ignition switch, and an exhaust valve; a dual continuously variable valve duration device to adjust an intake duration of the intake valve and an exhaust duration of the exhaust valve; and a controller for adjusting an ignition timing of the ignition switch, the intake duration, and the exhaust duration based on a driving condition of the vehicle. In particular, until the temperature of the exhaust gas reaches a predetermined temperature after the engine starts, the controller sets the ignition timing to an ignition timing within a predetermined ignition timing range, sets the intake duration of the intake valve to an intake duration within a predetermined intake duration range, and increases the exhaust duration of the exhaust valve to a limit exhaust duration according to the set intake duration.

System and method of controlling engine provided with dual continuously variable valve duration device

A system of controlling an engine provided with a dual continuously variable valve duration device may include the engine including a combustion chamber, an intake valve, an ignition switch provided in the combustion chamber, and an exhaust valve, the CVVD provided to adjust an intake duration of the intake valve and an exhaust duration of the exhaust valve, a warm-up catalytic converter (WCC) including a three-way catalyst (TWC) for purifying hydrocarbons, carbon monoxide, nitrogen oxides contained in the exhaust gas downstream of the engine, a Hydrocarbon (HC) trap disposed downstream of the warm-up catalytic converter for adsorbing and removing the hydrocarbons contained in the exhaust gas, an electrically heated catalyst disposed downstream of the HC trap and provided with a heating device, a three-way catalyst (TWC) disposed downstream of the electrically heated catalyst for purifying hydrocarbons, carbon monoxide, and nitrogen oxides contained in the exhaust gas, and a controller for adjusting an ignition timing of the ignition switch, the intake duration and the exhaust duration based on a driving condition of the vehicle.

A method of controlling oxygen purge of a three-way catalyst may include: performing a fuel cut-off; determining whether a fuel cut-in condition is satisfied after the fuel cut-off; calculating an optimum valve overlap according to an intake amount, an engine rotation speed, and an ignition timing if the fuel cut-in condition is satisfied after the fuel cut-off; controlling a CVVD apparatus to be at the optimum valve overlap; and performing the oxygen purge at the optimum valve overlap.

System and method of controlling oxygen purge of three-way catalyst

A continuous variable valve duration apparatus is provided. The apparatus includes a camshaft and a cam unit on which a cam is formed. The camshaft is inserted into the cam unit. An inner wheel transmits rotation of the camshaft to the cam unit. The inner wheel is rotatably inserted in a wheel housing a housing hinge aperture parallel to the camshaft is formed on the wheel housing. A slider hinge aperture and a slider control aperture parallel to the camshaft are formed through a slider. A hinge shaft is inserted into the housing hinge aperture and the slider hinge aperture. An eccentric cam is formed on a control shaft and is inserted into the slider control aperture. A controller selectively rotates the control shaft to move the wheel housing perpendicular to the camshaft via the slider.

A continuously variable valve lift apparatus may include a camshaft, a cam portion on which two cams are formed and on which a rotation member is formed between the cams, a slider housing into which the rotation member is rotatably inserted, and rotatable around a pivot shaft, a control portion configured to selectively change a position of the slider housing, an output portion contacting the cams, rotatable around the pivot shaft and on which a valve shoe is formed, and a valve device configured to be driven by the valve shoe.

Continuous variable valve lift apparatus and engine provided with the same and varying valve lift according to operation conditions of engine

A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve; controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve; determining, by a controller, a target opening duration of the intake valve and target opening or target closing timings of the intake valve based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration; and advancing or retarding, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding or advancing the current closing timing of the intake valve by a predetermined value based on the target opening duration of the intake valve.

System and method for controlling valve timing of continuous variable valve duration engine

A method for controlling intake and exhaust valves of an engine may include: determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration of the valves; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration.

A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, of which the camshaft is inserted thereto and of which a relative phase angle with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the cam unit, a wheel housing in which the inner bracket is rotatably inserted, on which a guide groove parallel to the camshaft is formed, and on which a guide hole vertical to the camshaft is formed, a guide portion including a guide shaft inserted into the guide hole for guiding movement of the wheel housing and a control portion including a control shaft disposed parallel to the camshaft and inserted into the guide groove, and the control portion selectively rotating the control shaft for the relative position of the wheel housing with respect to the camshaft to be changed.

A continuously variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing into which the inner wheel is rotatably inserted and movable perpendicular to the camshaft; a guide shaft on which a guide screw thread is formed and disposed perpendicular to the camshaft; a worm wheel formed with an inner screw thread for engaging with the guide screw thread, and the worm wheel disposed within the wheel housing; and a control shaft on which a control worm for engaging with the worm wheel is formed.

Continuously variable valve duration apparatus and engine provided with the same

Growing community of inventors

Yongin-si, South Korea

Kiyoung Kwon