Hyundai Motor Company

Kia Motors Corporation

Changgi Yeo

Dong Hee Han

Sueng Ho Lee

Ki Been Lim

Han Ki Hong

Ki Tae Kim

Jung Woo Kim

Woo Jin Chang

Woochurl Son

Seungwoo Hong

Yeongseop Park

Wootae Kim

Kijong Park

Jihun Lee

Cheol Ho Jang

Hwan Hur

Yong Woo Shin

Choung Wan Son

Dong Hyup Kang

Bo Hee Lee

Young Chan Gweon

Chong Tae Yang

Jihwan Byun

Hwangbok Lee

Nag Geun Song

Jin San Kim

Young Chul Jeong

Yunsung So

Jekee Lee

A vehicle supercharging system may include: an engine; a transmission; a dual-turbine electric supercharger that compresses air and has a first turbine and a second turbine; an engine-side supercharging path part that branches out from an air supplying line configured to supply air to the engine, passes through the first turbine and then joins into the air supplying line; a transmission-side supercharging path part that sucks air separately from the engine-side air supplying line, passes through the second turbine, and then supplies compressed air to the transmission; and a controller that operates the dual-turbine electric supercharger according to a driving state of a vehicle and that individually controls valves provided in the engine-side supercharging path part and the transmission-side supercharging path part.

Vehicle supercharging system and control method thereof

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

An apparatus and method for controlling line pressure of an automatic transmission. A driving information detection unit obtains information. A shift control unit determines if a power-on downshift is requested based on the information of the driving information detection unit, and controls the line pressure based on if the power-on downshift is requested. An actuator forms the line pressure according to a control signal of the shift control unit. A pressure supply control unit controls supply of the line pressure to on-coming and off-going frictional elements of the transmission. The method outputs a first value of a line pressure control duty if the power-on downshift is requested; subsequently outputs a second, lower value of the line pressure control duty if a first shifting is started during outputting of the first value; and subsequently outputs the first value if a turbine speed is greater than or equal to a predetermined speed.

Method and apparatus for controlling a line pressure of an automatic transmission

Growing community of inventors

Suwon-si, South Korea

Changgi Yeo