Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Ma Ru Kang

Chon Ok Kim

Sun Sung Kwon

Yong Uk Shin

Soon Ki Eo

Minho Chae

Soonki Eo

Seongwook Ji

Ki Tae Kim

Sueng Ho Lee

Ki Dong Kim

Min Ho Chae

Jihun Lee

Seong Wook Hwang

Woo Jin Chang

Woochurl Son

Yong Sug Choi

Wonmin Cho

Dongwoo Kim

Jin Yong Kim

Juhyeon Park

Ilhan Yoo

Kijong Park

Ki Been Lim

Hye Jin Lim

Woo Churl Son

Dongwon Kim

Sangwon Seo

Hyun Sik Kwon

Seong Wook Ji

Il Han Yoo

Ki Jong Park

Ki DOng Kim

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

An automatic transmission may include a rotating shaft; a slider portion provided on the rotating shaft; a first connecting member having one end hinged to the rotating shaft and the other end rising or falling by a centrifugal force as the rotating shaft rotates; a second connecting member having one end hinged to the first connecting member and the other end connected to a slider portion to vertically slide the slider as the first connecting member rises or falls; a diaphragm spring coupled to the slider portion and deformed in an axial direction of the rotating shaft depending on position of the slider portion; a shift fork connected to the slider portion or the diaphragm spring and engaging a synchronizer with a shift stage gear depending on position of the slider portion; an elastic regulator controlling an elastic force of the diaphragm spring; and a controller controlling the elastic regulator.

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 gear shifting apparatus for a multi-speed transmission includes: a shifting unit controlling gear shifting by an actuator, and a parking unit controlling parking by the actuator. In particular, the actuator includes a control motor driving a driven gear through a drive gear externally gear-meshed with the driven gear, and the shifting and parking units are operated by a force received from a cam block fixed to the driven gear. The shifting unit includes a fork slider slidably mounted on a fork rail, a shift fork integrally formed with the fork slider, and a cam contact pin integrally formed with the fork slider and contacting the cam block.

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. The actuator includes a control motor transmitting a driving torque to driven gears of the shifting and parking units through a drive gear externally gear-meshed with the driven gears. The shifting unit includes a cam block connected to a first driven gear engaged with the drive gear and having a cam surface on an exterior circumference for shift-stages for controlling gear shifting. In addition, the parking unit includes a parking gear and a parking sprag having an engagement end for controlling engagement and disengagement of a parking state.

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.

Power transmission apparatus for a vehicle

A transmission for an electric vehicle, may include a concentric deceleration device for receiving power from a motor shaft and for decelerating; an output shaft disposed in parallel with the input shaft; a hollow shaft rotatably provided on the input shaft; a clutch device provided to switch the transmission state of power from the input shaft to the hollow shaft; a first synchronizer having a hub fixed to the input shaft; a second synchronizer having a hub fixed to the hollow shaft; a plurality of driving gears having different sizes and provided on the input shaft and the hollow shaft to be engaged with at least one of the first synchronizer and the second synchronizer; and a plurality of driven gears provided on the output shaft to be engaged with the plurality of driving gears to form different shift ratios, respectively.

Transmission for electric vehicle

A transmission includes: a pre-engaging mechanism including a plurality of pre-engaging gear pairs engaged with a second input shaft, a first countershaft, and a second countershaft so that the pre-engaging gear pairs are appropriately selected by a clutch unit; a synchro-engaging mechanism including a plurality of synchro-engaging gear pairs engaged with a third input shaft, the first countershaft, and the second countershaft so that the synchro-engaging gear pairs are appropriately selected by a clutch unit; a one-way clutch positioned on a corresponding power transmission path so that power transmitted through the first input shaft from the engine is transmitted only to the third input shaft; and a main shifting mechanism including a plurality of main gear pairs engaged with the first countershaft, the second countershaft, and an output shaft so that the main gear pairs are appropriately selected by a clutch.

Transmission for vehicle

A transmission for electric vehicle may include first input shaft connected to motor, first planetary gear set including first rotation element selectively connectable to the first input shaft and third rotation element which is fixed, second planetary gear set including first rotation element directly connected to the first input shaft and third rotation element directly connected to second rotation element of the first planetary gear set, first clutch selectively connecting the first input shaft and second rotation element of the second planetary gear set, output shaft, driving gear rotating with the second rotation element of the second planetary gear set, driven gear engaged with the driving gear, second clutch selectively connecting the first rotation element of the first planetary gear set to the first input shaft, and third clutch disposed to fix or engage the third rotation element of the second planetary gear set with the driving gear.

A transmission for an electric vehicle may include an input shaft connect with a motor; a planetary gear set having a first rotation element directly connected to the input shaft, a second rotation element and a third rotation element; an output shaft having an output gear; a first drive gear provided in the third rotation element of the planetary gear set; a first driven gear disposed at the output shaft to be rotatable to engage with the first drive gear; a second drive gear connected to or disconnected from the input shaft; a second driven gear engaged with the second drive gear and directly connected to the first driven gear; a third drive gear directly connected to the second rotation element of the planetary gear set; and a third driven gear engaged with the third drive gear and directly connected to the output shaft.

An apparatus for automatic shifting of a vehicle may include a rotation shaft connected to an output shaft to rotate together; first connecting members each having a first end portion to which a first link disposed on the rotation shaft is hinged and a second end portion to which a centrifugal weight is disposed, to pivot about the first end portions by centrifugal force; second connecting members each having a first end portion hinged to the middle portion of the first connecting member and a second end portion hinged to a second link disposed on the rotation shaft; a slider disposed on the rotation shaft to be coupled to any one of the first link and the second link and sliding in an axial direction of the rotation shaft; and a shift fork connected to the slider to engage a synchronizer with a shift stage gear.

Apparatus for auto shifting of vehicle

A transmission may include a first input shaft and a second input shaft receiving power from an engine continuously or through a clutch; a sub-shifting mechanism and a main shifting mechanism including a plurality of sub-shifting gear pairs and main shifting gear pairs, which have different gear ratios and are respectively engaged with two shafts of the first and second input shafts, first and second countershafts, and first and second output shafts to select the sub-shifting gear pairs and the main shifting gear pairs, a one-way clutch that transmits power from the engine only from the first countershaft to the first output shaft; a second one-way clutch that transmits power from the engine only from the second countershaft to the second output shaft; and a power transmission gear set engaged between the first output shaft and the second output shaft.

Growing community of inventors

Yongin-si, South Korea

Ma Ru Kang