Hyundai Motor Company

Kia Motors Corporation

Jangmi Lee

Yeonho Kim

Baekyu Kim

Kyungha Kim

Sungik Bae

Wansoo Kim

Haksung Lee

Jaeshin Yi

Youngchul Kim

Sanghyun Jeong

Sanglok Song

Seungki Kong

An exemplary embodiment of the present invention provides a power train for a hybrid vehicle can achieve three or more fixed gear ratio modes where a vehicle is driven at a fixed gear ratio, such as shift stages of common transmission, only by the driving force of an engine without driving a motor generator, as well as an electric vehicle mode, which is the basic drive modes of a hybrid vehicle, and two or more power division modes including an input division mode and a composite mode, thereby driving the vehicle with high efficiency in accordance with traveling conditions of the vehicle and improving fuel efficiency.

Power train for hybrid vehicle

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

Hwaseong-si, South Korea

Jangmi Lee