Hyundai Motor Company

Kia Motors Corporation

Other

Kia Corporation

Kia Motors Cjorporation

Woo Jin Chang

Seong Wook Hwang

Seongwook Ji

Wonmin Cho

Hyun Sik Kwon

Jae Chang Kook

Chon Ok Kim

Woochurl Son

Ki Tae Kim

Dong Hwan Hwang

Jong Soo Kim

Jong Sool Park

Jinseok Kim

Tae Whan Kim

Yong Uk Shin

Kyeong Hun Lee

Jin Ho Kim

Ki Been Lim

Juhyeon Park

Ilhan Yoo

Kijong Park

Sun Sung Kwon

Ki Dong Kim

Dongwoo Kim

Minho Chae

Soonki Eo

Hye Jin Lim

Cheol Ho Jang

Yong Sug Choi

Wookjin Jang

Ma Ru Kang

Young Chan Gweon

Jin Yong Kim

Seong Wook Ji

Hyu Tae Shim

Sueng Ho Lee

Won Min Cho

Soon Ki Eo

Jihun Lee

Woo Churl Son

Sangwon Seo

Ki DOng Kim

JongSool Park

Dong Hee Han

Jung Woo Kim

KyeongHun Lee

Yeongseop Park

Wootae Kim

Jae Hyuk Choi

Yong Woo Shin

Hwan Hur

Hyun Ku Lee

Choung Wan Son

Hyun Chul Kim

Sang Bum Baek

Han Ki Hong

Chang Yeon Cho

Dong Hyup Kang

Bo Hee Lee

Changgi Yeo

Hyeonjin Kim

Chong Tae Yang

Jin Won Seok

Wang Kweon Lee

Jin San Kim

Young Chul Jeong

Yong Beom Kim

Jihwan Byun

Hwangbok Lee

Nag Geun Song

Ki Jung Han

Seock Chan Kang

Kisoo Huh

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 power transmission apparatus for a vehicle may include a first input shaft directly connected to a motor/generator, a second and third input shafts coaxial and selectively connectable to the first input shaft, a torque mediating shaft coaxial with the first input shaft, an intermediate shaft and output shaft disposed in parallel with the first input shaft, a first shifting section receiving torque from the third input shaft and outputting a modified torque to the torque mediating shaft, a second shifting section including first planetary gear set, shifting torque of the first input shaft to output the shifted torque to the torque mediating shaft, and selectively stopping the torque mediating shaft, and a third shifting section including second planetary gear set, forming an output torque in combination of torques from the first and second shifting sections and the second input shaft, and outputting the output torque to the output shaft.

Power transmission apparatus for a vehicle

A synchronizer apparatus for a transmission includes: first and second shifting gears rotatable on an output shaft; a hub spline-coupled with the output shaft and having a slope portion having slanted surfaces; a sleeve spline-coupled with the hub; a key coupled with a recess of a slope portion; first and second clutch gears disposed between the hub and shifting gears; first and second outer rings and first and second inner rings disposed between the hub and clutch gears; first and second synchronizer cones disposed between the first inner and outer rings and the second inner and outer rings; a poppet ball unit disposed at the sleeve and contacting the key through a poppet ball; first and second push blocks disposed at the slanted surfaces; and first and second push springs inserted in spring holes formed at the push blocks to force push blocks to the slanted surfaces.

Synchronizer apparatus for transmission

A power transmission apparatus for a hybrid electric vehicle includes: a planetary gear set including first, second and third rotary elements; a first shaft fixedly connected to an output shaft of an engine; a second shaft fixedly connected to the first rotary element and a first motor/generator; a third shaft receiving rotational power from the first shaft; a fourth shaft selectively connected with the first shaft, and the fourth shaft selectively receiving rotational power from the first shaft or from the third rotary element; a fifth shaft fixedly connected to a second motor/generator; and a sixth shaft transmitting rotational power transmitted from the fifth shaft to a final reduction gear of the differential gear. In particular, the six shafts are connected to external gears mutually by four gear sets so that rotational power is transmitted.

Power transmission apparatus of hybrid electric vehicle

A vehicle transmission system may include an engine outputting power from fuel combustion, a transmission coupled to the engine and including at least one clutch to control torque input from the engine, an supercharger compressing an intake air and supplying the compressed intake air to the engine, and a control unit, where, when a predetermined acceleration condition is satisfied, the control unit is configured to operate the supercharger and to control the transmission according to a transmission clutch stroke operation map corresponding to the operation of the electric supercharger, to vary an engagement speed of the clutch when the supercharger is operated.

Vehicle transmission system and a method thereof

A power transmission apparatus may include a motor/generator having a rotor selectively connectable to an engine output shaft, a first input shaft mounted coaxial with the engine output shaft and selectively connectable to the rotor, a second input shaft external to the first input shaft and fixedly connected to the rotor, an intermediate shaft parallel with the input shafts, first and second output shafts receiving torques from the first and second input shafts, and outputting a shifted torque based on the received torques, a planetary gear set mounted on the first output shaft, having a sun gear fixedly connected to the first output shaft, selectively receiving torques from the first and second input shafts and the intermediate shaft, and outputting a shifted torque based on the received torques to the first output shaft, and a plurality of gear sets allowing torque flows between the various shafts.

Power transmission apparatus for hybrid electric vehicle

A power transmission apparatus may include a motor/generator having a rotor selectively connectable to an engine output shaft, a first input shaft mounted along an axis of the engine output shaft and fixedly connected to the rotor, a second input shaft external and selectively connectable to the first input shaft, first and second intermediate shafts and an output shaft mounted in parallel with the input shafts, a planetary gear set mounted on the output shaft, having a sun gear fixedly connected to the output shaft, selectively receiving torques from the first and second input shafts and the first and second intermediate shafts, and outputting the shifted torque based on the received torques to the output shaft, and a plurality of gear sets allowing torque flows between the first and second input shafts, the first and second intermediate shafts, and the output shaft.

A power transmission apparatus of a hybrid electric vehicle using an engine and first and second motor/generators as power sources, may include a first shaft, a second shaft which is selectively connectable to the first shaft and fixedly connected to the first motor/generator, a third shaft selectively connectable to the first shaft, a fourth shaft coaxially mounted with the third shaft, a fifth shaft transferring rotational power transmitted from the third and fourth shafts to a final reduction gear, a sixth shaft fixedly connected to the second motor/generator, a seventh shaft transferring rotational power transmitted from the sixth shaft to the final reduction gear and a planetary gear set including first, second, and third rotation elements wherein the first to seventh shafts are externally gear-meshed with each other by four gear sets so that rotational power is transmitted.

A power transmission apparatus may include a motor/generator having a rotor selectively connectable to an engine output shaft, a first input shaft mounted coaxial with the engine output shaft and fixedly connected to the rotor, a second input shaft external and selectively connectable to the first input shaft, first and second intermediate shafts and an output shaft mounted in parallel with input shafts, a planetary gear set mounted on the output shaft, having a sun gear fixedly connected to the output shaft, selectively receiving torques from the first and second input shafts and the first and second intermediate shafts, and outputting a shifted torque based on the received torques to the output shaft, and a plurality of external gear sets forming external engagements among the various shafts.

A power transmission apparatus includes: a first input shaft always receiving an input torque from an engine; second and third input shafts coaxially disposed and selectively connected with the first input shaft; a torque mediating shaft selectively connected with the first input shaft or a transmission housing; first and second intermediate shafts and an output shaft respectively disposed in parallel with the first input shaft; a first preliminary shifting section receiving a torque through a first input gear set, selectively shifting the received torque, and outputting the shifted torque; a second preliminary shifting section including a second shifting gear set which outputs a torque from the first input shaft and stops; and a compound shifting section forming an output torque by the input torque and the first and second shifted torques.

Power transmission apparatus for vehicle

A power transmission apparatus includes a first input shaft receiving an input torque, second and third input shafts coaxially disposed and selectively connected with the first input shaft, first and second torque mediating shafts coaxially disposed with the first input shaft, first and second intermediate shafts and an output shaft disposed in parallel with the first input shaft, a first shifting section receiving a torque from the third input shaft and outputting a plurality of first shifted torques, a second shifting section including a first planetary gear set selectively connected with the first input shaft and outputting a plurality of second shifted torques, and a compound shifting section forming an output torque by the input torque and the first and second shifted torques.

A power transmission apparatus for a vehicle may include a first input shaft directly connected with a motor/generator, second and third input shafts and torque mediating shaft coaxial and selectively connected with the first input shaft, a first intermediate shaft and first and second idle shafts in parallel with the first input shaft, a second intermediate shaft in parallel with the first input shaft, and selectively connected with a transmission housing, an output shaft in parallel with the first input shaft, and coaxial and selectively connected with the second intermediate shaft, a first shifting section including six gear sets, selectively receiving torque through the first and third input shafts, and outputting intermediate shift-stages, and a second shifting section including a planetary gear set, forming an output torque by combination torques from the first shifting section and the second input shaft, and outputting the output torque to the output shaft.

A power transmission apparatus configured for a vehicle, may include a motor/generator including a motor shaft a first input shaft selectively connectable to the motor shaft, a second input shaft externally disposed with the first input shaft and selectively connectable to the motor shaft, a third input shaft externally disposed with the second input shaft and selectively connectable to the motor shaft, a first torque mediating shaft formed as a hollow shaft and coaxially and externally disposed with the first input shaft without rotational interference therebetween, an intermediate shaft parallel with the first input shaft, a first shifting section receiving a torque and outputting the shifted torque, and a second shifting section including a first planetary gear set selectively receiving the torques from the first shifting section and the third input shaft, respectively, and outputting shifted torque through one gear set.

A vehicle transmission is provided that improves fuel efficiency through multiple speed stages and enhances silent drivability of a vehicle using an operating point in a low RPM range of an engine. The vehicle transmission combines three simple planetary gear units with a single compound planetary gear set or combines five simple planetary gear units to shift gears while changing rotational speeds and directions by a selective intermittence operation using rotation elements of the planetary gear units and a plurality of friction elements. Through such a shift operation, it is possible to form at least forward 10-speed or more and reverse 1-speed gear ratios for driving of the vehicle.

Vehicle transmission

A transmission of a motor driving vehicle, may include an input shaft connected to a driving motor and including a first clutch and a second clutch, a planetary gear set including a first rotation element directly connected to the input shaft, a second rotation element connected to the input shaft through the first clutch, and a third rotation element being able to be restrained from rotation, a gear pair configured to transmit power to the output shaft through the planetary gear set, a gear pair configured to transmit power to the input shaft without change, and additional clutches configured to control connection of the gear pairs and connection of rotation elements of the planetary gear set.

Transmission of motor driving vehicle

Growing community of inventors

Suwon-si, South Korea

Woo Jin Chang