Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Lg Display Co., Ltd.

Sun Sung Kwon

Chon Ok Kim

Yong Uk Shin

Minho Chae

Seong Wook Hwang

Soon Ki Eo

Soonki Eo

Ma Ru Kang

Min Ho Chae

Seongwook Ji

Ki Tae Kim

Wonmin Cho

Hyun Sik Kwon

Juhyeon Park

Woo Jin Chang

Ilhan Yoo

Yong Sug Choi

Dongwoo Kim

Woochurl Son

Kijong Park

Ki Dong Kim

Hye Jin Lim

Cheol Ho Jang

Baek Yu Kim

Sung Gon Byun

Chul Min Ahn

Su Hyeon Maeng

Dong Hui Cheon

Jin Yong Kim

Jieun Kim

Sueng Ho Lee

Won Seok Lee

Baekyu Kim

Chulmin Ahn

SungGon Byun

Ki Been Lim

Junyoung Ha

Sangwon Seo

Yohan Kim

Young Chan Gweon

Ki DOng Kim

Seong Wook Ji

Won Min Cho

Dae Young Kim

Ho Sung Kim

Kwang Hyun Won

Min Su Kim

Jihun Lee

Se Hee Lee

Il Han Yoo

Jun Hoi Huh

Kwang Min Choi

Seok Jong Lee

Woo Churl Son

Yoh Han Kim

Byung Hoon Yang

Yeo Hyeon Gwon

Dongwon Kim

Jeong Mo Jang

Jae Wan Choi

Donghui Cheon

Suhyeon Maeng

So Ra Roh

Chonok Kim

Ji Hwan Byun

A device for cooling a motor can improve motor cooling performance with multiple cooling channels formed in a stator core of the motor, allowing a coolant to flow in both directions therethrough. The device is capable of maximizing motor cooling performance in such a manner that two or more multiple cooling channels are formed in a stator core with a separate coolant inlet and outlet. The coolant moves in a straight line in different directions along each cooling channel to cool the stator core, and thus the temperature gradient of the coolant is minimized to cool the entire area of the motor evenly.

Device for cooling a motor

An embodiment motor cooling apparatus includes a stator core including a plurality of metal plates made in a predetermined shape by lamination, an inlet channel formed from one side of the stator core and extending therethrough to a predetermined depth therein, a plurality of cooling channels branched from an internal end of the inlet channel and extending therefrom to either an upper side or a lower side of the stator core, and a cooling fluid supply apparatus configured to circulate cooling fluid from the inlet channel to the plurality of cooling channels.

Motor cooling apparatus

A torque vectoring device for a vehicle is disclosed. The torque vectoring device includes: a differential; a first planetary gear set connected, at a first rotating element thereof, to a differential case of the differential; a second planetary gear set connected, at a first rotating element thereof, to a selected drive shaft that is one of two drive shafts coupled to the differential; a motor connected to a second rotating element of the first planetary gear set; and a selective fixing mechanism configured to selectively fix a second rotating element or a third rotating element of the second planetary gear set.

Torque vectoring device for a vehicle

A lubrication structure of a planetary gear set includes a hollow shaft on which the planetary gear set is disposed and forming an oil passage in an axial direction thereof and a plurality of oil holes in a radial direction thereof to supply a lubrication oil to the planetary gear set, and an internal pipe provided within the oil passage of the hollow shaft, wherein a gap chamber is formed between the internal pipe and the hollow shaft with a preset gap, where a plurality of oil supply holes are formed through the internal pipe in the radial direction to fluidically communicate the gap chamber and an internal space of the internal pipe.

Lubrication structure of planetary gear set utilizing inner pipe

A mobility hub is composed of a plurality of layers and serves as a terminal of a ground mobility and an air mobility. The mobility hub includes: a ground layer provided with an entrance of the ground mobility; a port layer provided with a taking-off and landing site of the air mobility; and a middle layer provided between the ground layer and the port layer. The middle layer has the ground mobility elevating in a space with the ground layer, is provided with a plurality of connection slots to which the ground mobility is connected, and provides an activity space through the ground mobility if the ground mobility is coupled to the connection slot.

Mobility hub

A planetary gear apparatus for a power transmission apparatus including a transmission housing includes a sun gear provided on a first shaft, first and second planet carriers rotatably supporting pinion gears gear-engaged with the sun gear, and a ring gear gear-engaged with the pinion gears, where an internal circumference of the sun gear is spline-engaged with an external circumference of the first shaft, where first and second support shafts are fixed to first and second side surfaces of the ring gear, respectively, where the first support shaft is rotatably supported by a supporting frame fixed to the transmission housing, interposing a first bearing, where the second support shaft is rotatably supported by the transmission housing, interposing a second bearing, where the first planet carrier is rotatably supported by the first support shaft interposing a third bearing, and where the second planet carrier is fixedly connected to a connection end portion of a second shaft.

Planetary gear set for power transmission apparatus

A gear shifting apparatus for a multi-speed transmission includes: a shifting unit controlling gear shifting by a torque of an actuator; and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to driven gears of the shifting and parking units through a drive gear, and the shifting unit includes: a fork slider slidably mounted on a fork rail; a shift fork integrally formed with the fork slider; a finger drum connected to a first driven gear engaged with the drive gear, and having a finger end; and a shift lug that rotates about a lug shaft and includes two lug ends having a different length from each other. The shift lug interacts with the finger end, and has a coupler end coupled with a pocket portion formed at the fork slider.

Gear shifting apparatus for multi-speed transmission for electric vehicles

A friction element latch device includes: a screw provided to be rotatable by receiving power from a driving source; a piston arranged to be movable by rotation of the screw; a guide arranged to selectively restrict movement of the piston; a guide pin protruding in a radial direction from an outer circumferential surface of the piston and guided by the guide; and a friction element arranged to be engaged as the piston moves.

Friction element latch device

An automatic transmission may include rotation shaft, sliding unit mounted on the rotation shaft and slidable up and down along the rotation shaft, diaphragm spring coupled to the sliding unit and deformed to be oriented toward first or second end of the rotation shaft along the rotation shaft according to position of the sliding unit, shift fork connected to the sliding unit or the diaphragm spring and configured to cause synchronizer to engage with speed change gear according to the position of the sliding unit, sliding-unit position adjuster connected to the sliding unit and adjusting the position of the sliding unit by causing the sliding unit to slide up or down along the rotation shaft, and controller for controlling the sliding-unit position adjuster to adjust elastic force of the diaphragm spring according to the vehicle speed by causing the sliding unit to slide upward or downward along the rotation shaft.

Automatic transmission for vehicle

A dual-clutch transmission may include: a first input shaft and a second input shaft mounted concentrically to the first input shaft; a first clutch mounted to the first input shaft to selectively transmit power to the first input shaft; a second clutch mounted to the second input shaft to selectively transmit power to the second input shaft; a first output shaft and a second output shaft mounted in parallel with the first input shaft and the second input shaft; an input shaft connection device provided to switch a power transmitting and a blocking state between the first input shaft and the second input shaft by use of a selection output shaft; a plurality of drive gears mounted on the first input shaft and the second input shaft; and a plurality of driven gears mounted on the first output shaft and the second output shaft engaged with the plurality of drive gears to form each shifting stage.

DCT for vehicle

A gear shifting apparatus for a multi-speed transmission includes: a shifting unit controlling gear shifting by a torque of an actuator; and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to a first driven gear of the shifting unit and a second driven gear of the parking unit through a drive gear externally gear-meshed with the driven gears, and the shifting unit includes: a fork slider slidably mounted on a fork rail, a shift fork integrally formed with the fork slider, a cam block connected to the first driven gear engaged with the drive gear and having a cam surface on an exterior circumference for shift-stages, a cam contact pin integrally formed with the fork slider and contacting the cam surface, and a return spring mounted around the fork rail.

A gear shifting apparatus for a multi-speed transmission for an electric vehicle includes a shifting unit controlling gear shifting by a torque of an actuator, and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to a first driven gear and a second driven gear through a drive gear externally gear-meshed with the driven gears, and the shifting unit includes: a shift fork slidably mounted on a fork rail and activating the gear shifting; a profile drum connected to the first driven gear externally engaged with the drive gear, and having a profile groove formed along an exterior circumference of the profile drum; and a shift lug integrally formed with the shift fork and coupled with the profile groove.

A powertrain for a vehicle may include a main shaft; a transmission unit provided to selectively supply power of a motor to the main shaft with different gear ratios; a differential connected to the main shaft; two driveshafts provided to output power in opposed directions from the differential; a rotating ring rotatably mounted on the main shaft through a first clutch; and a second clutch provided to select either a state where the rotating ring is connected to the transmission unit or a state where the rotating ring is connected to a selected driveshaft of the two driveshafts.

Powertrain for vehicle

A power transmission apparatus configured for a vehicle, may include a first input shaft selectively connectable to an engine output shaft, a second input shaft mounted coaxial with the first input shaft and selectively connectable to the engine output shaft, a third input shaft external to the second input shaft and selectively connectable to the engine output shaft, a torque mediating shaft mounted coaxial with the first input shaft, first and second intermediate shafts, an idle shaft, a first shifting section including five gear sets, the first and second intermediate shafts, the torque mediating shaft and the idle shaft, a second shifting section including a planetary gear set having a sun gear fixedly connected to the torque mediating shaft, and an output shaft mounted coaxial with and selectively connectable to the first intermediate shaft and outputting a torque from the first and second shifting sections.

Power transmission apparatus for vehicle

A double clutch transmission (DCT) may include a first input shaft and a second input shaft disposed to or not to receive power from the same power source, respectively; a first output shaft and a second output shaft each disposed in parallel with the first input shaft; a first drive gear disposed on and rotated with the first input shaft; a second drive gear disposed on and rotated with the second input shaft; a first driven gear engaged with the first drive gear and rotatably disposed on a selection output shaft which is one of the first output shaft and the second output shaft; a second driven gear engaged with the second drive gear and rotatably disposed on the selection output shaft; and a sleeve synchronizer selectively connecting between the first driven gear and the second driven gear.

Growing community of inventors

Anyang-si, South Korea

Sun Sung Kwon