Hyundai Motor Company

Kia Motors Corporation

Moon Kyung Joo

Ji Hyun Park

Jin Kuk Cho

A control method for controlling gear-shifting and lock-up of an engine clutch in a hybrid vehicle includes: detecting a kickdown shift by a driver while the hybrid vehicle is driving in an electric vehicle mode; starting gear-shifting when the kickdown shift is detected; controlling a difference between an engine speed and a motor speed to be equal to or less than a first reference value; synchronizing the engine speed and the motor speed through an engine speed control; performing torque blending by locking up the engine clutch when the synchronization is completed; and ending the gear-shifting when a target required torque is reached through the torque blending.

Method and apparatus for controlling gear-shifting and engine clutch connection in hybrid vehicle

A device for controlling sudden unintended acceleration according to an embodiment of the present disclosure includes a sensor for detecting a current acceleration of a vehicle, a first controller that calculates a motor torque command value for driving a motor, calculates an expected acceleration of the vehicle based on the motor torque command value, and compares the expected acceleration with the current acceleration, and a second controller that compares the motor torque command value with a preset value. Therefore, the device may determine a cause of the sudden unintended acceleration and block the sudden unintended acceleration based on the determination result to improve safety of a driver.

Device and method for controlling sudden unintended acceleration

A launch control method for a hybrid vehicle includes: determining an intent of a driver to execute a launch control mode in a state in which an engine is turned-off; when the intent of the driver is to execute the launch control mode, starting the engine and controlling an engine speed; performing a slip control on a slip element of a transmission input terminal; when the engine speed is synchronized with a motor speed or a difference between the engine speed and the motor speed is less than a predetermined range, locking up an engine clutch; when the engine clutch is locked up, performing an engine pre-boosting control to raise an engine torque to a torque at which battery charging is available due to a motor; performing a take-up control on the slip element; and when the take-up control is terminated, locking up the slip element.

Growing community of inventors

Seoul, South Korea

Moon Kyung Joo