Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Sanghyun Jeong

Jaeshin Yi

Haksung Lee

Yeonho Kim

Jong Hyun Kim

Seung Ki Kong

Youngchul Kim

Sang Lok Song

Seunghyun Yang

Jang Mi Lee

Sanglok Song

Jangmi Lee

Seungjae Kang

SanLok Song

Seungki Kong

Yeahn Yoon

Joomi Park

A vehicle includes a battery, a first motor configured to provide a first wheel and a second wheel with a driving force, and a second motor configured to provide the first wheel and the second wheel with different rotational forces. The vehicle also includes a controller configured to output a first torque command and a second torque command, a first motor driver and a second motor driver configured to convert power output from the battery in response to, respectively, the first torque command for the first motor and the second torque command for the second motor. The controller is configured to determine a torque limit of the first motor based on a state of charge (SoC) of the battery and a rotational speed of the first motor and a torque limit of the second motor based on the SoC of the battery and a rotational speed of the second motor.

Vehicle and control method thereof

An oil pump control apparatus of a hybrid vehicle is provided that controls an oil pump according to a demand of an output torque and oil temperature. In particular, hydraulic line pressure is controlled by operating an oil pump at maximum power if a starting demand for a hybrid vehicle is detected. Viscosity is calculated as well to correspond to an oil temperature in an engine stop mode and a rotation speed of the oil pump is controlled at a low power. Additionally, viscosity is also calculated according to a variation of a line pressure in a driving mode and the rotation speed of the electric oil pump is controlled in either a low power, a middle power, and a high power state as well.

Oil pump controlling system of hybrid vehicle and method thereof

A system and method for diagnosing and controlling an unusual hydraulic state of an electric variable transmission of a hybrid vehicle achieving multi modes including a first mode and a second mode, the method may include determining whether the first mode is converted into the second mode, determining whether a hydraulic pressure is generated in a clutch which is engaged and the generated hydraulic pressure is higher than a predetermined hydraulic pressure when the first mode is converted into the second mode, and determining that the hybrid vehicle is in an unusual condition if the hydraulic pressure is not generated in the clutch or the generated hydraulic pressure is higher than the predetermined hydraulic pressure.

Method for diagnosing and controlling an unusual hydraulic state of hybrid vehicle transmission

A method for determining an operating state of elements of a transmission may include acquiring rotational speeds of both members constituting the elements, determining whether the rotational speeds of the members may be the same, and determining that the elements may be directly connected when the rotational speeds of the members may be the same, and that the elements may be disconnected or slip when the rotational speeds of the members may be different.

Method for determining operating state of element of transmission

Growing community of inventors

Gyeonggi-do, South Korea

Sanghyun Jeong