Hyundai Motor Company

Kia Motors Corporation

Sangjoon Kim

Joonyoung Park

Hoon Hee Han

Jeamun Lee

Yongkak Choi

Ilkwon Park

Namil Choi

Seongik Park

Yonghoon Lee

Kyungtaek Lee

Jaeyun Shim

Ineok Cho

Jaesung Bang

Sungdeox Kim

A control method of a hybrid vehicle may include performing a series of commands by a control portion including determining whether an accelerator pedal change amount detected by an accelerator pedal sensor is greater than a predetermined value, starting up an engine through a Hybrid Shaft Generator (HSG) during conversion into an HEV mode from an EV mode, controlling the engine to output constant torque, and synchronizing engine torque with motor torque to engage a clutch.

Control method of hybrid vehicle

A system and a method for controlling regenerative braking of an electric vehicle are provided. The system and method calculate an available torque considering a battery system and an available torque considering a motor system to improve an accuracy of regenerative braking amount. The method includes calculating an available torque considering a battery system and an available torque considering a motor system when regenerative braking of the electric vehicle is required and calculating a regenerative braking capacity based on the available torque considering the battery system and the available torque considering the motor system.

System and method for controlling regenerative braking of electric vehicle

An apparatus and a method for controlling mode change of a hybrid electric vehicle. For a system having an engine as a power source, a motor selectively connected to the engine via an engine clutch, and a transmission connected to the motor, a method includes determining whether coupling of the engine clutch during a mode change from EV to HEV mode and shifting of the transmission are required, comparing an input speed of a current gear of the transmission with an engine speed in an idle state when the coupling of the engine clutch and the shifting are required, determining whether a kick down shift is required when the input speed of the current gear of the transmission is greater than or equal to the engine speed in the idle state and simultaneously coupling the engine clutch and performing the kick down shift when the kick down shift is required.

Apparatus and method for controlling mode change of hybrid electric vehicle

An apparatus and a method for controlling an engine clutch of a hybrid electric vehicle control a torque of an input shaft of the engine clutch to 0 by using an integrated hybrid starter and generator (HSG) and releases the engine clutch. The method may include: determining whether a release of the engine clutch is required while the hybrid electric vehicle is operating with fuel cut off; calculating an engine friction torque; increasing an output torque of the HSG by an absolute value of the calculated engine friction torque; decreasing a motor torque corresponding to the output torque of the HSG; and releasing the engine clutch when the output torque of the HSG is equal to the engine friction torque.

Apparatus and method for controlling engine clutch of hybrid electric vehicle

A regenerative braking apparatus of a vehicle includes: an engine that supplies power to front wheels of the vehicle; a hybrid starting generator (HSG) that starts the engine; an engine clutch that is disposed between the engine and a transmission and selectively transmits power from the engine to the front wheels; a motor that supplies power to the rear wheels of the vehicle; a battery that stores electrical energy generated by the HSG and the motor; and a controller that generates friction braking torque on the front wheels when necessary braking torque of the front wheels is larger than regenerative braking torque of the front wheels, and that generates friction braking torque on the rear wheels when necessary braking torque of the rear wheels is larger than regenerative braking torque of the rear wheels, in braking of the vehicle.

Regenerative brake apparatus of hybrid vehicle and method thereof

Disclosed is a technique for calculating Distance to Empty (DTE) in an electric vehicle. In the disclosed technique, a learning DTE is calculated by blending an average fuel efficiency stored during a past charge cycle and an average fuel efficiency within a current single charge cycle. Also, a section DTE is calculated using an average fuel efficiency over the certain section within a current single charge cycle. Then, the learning DTE and the section DTE are simultaneously displayed on a cluster.

Technique for calculating distance to empty in electric vehicle

A vibration reduction algorithm for a vehicle having no torque converter includes: optimized feedforward logic in which a request torque is divided into two or more different types of torques depending on a driving state of the vehicle. One of the two torques is provided two times with a time difference therebetween to reduce vibration of a driving system of the vehicle, and is identified as the request torque. Then the identified request torque is outputted as a motor command torque of the driving system. Furthermore, heuristic logic in which feedback information from the driving system is processed through heuristic calibration, added to the motor command torque of the optimized feedforward logic, and then provided as a motor command torque of the driving system.

Growing community of inventors

Seoul, South Korea

Sangjoon Kim