Power train for hybrid vehicle
AssigneeHyundai Motor Company
InventorsBaekyu Kim, Kyungha Kim, Jangmi Lee, Sungik Bae, Yeonho Kim, Wansoo Kim
Life of this patent
Estimating the term…
Abstract
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.
Claims35
A power train for a hybrid vehicle, comprising:
- two single planetary gear sets having one rotary element, respectively, in which the rotary members are consistently connected;
- a first motor generator connected to a rotary element of a first planetary gear set, one of the single two planetary gear sets;
- a second motor generator connected to a rotary element of a second planetary gear set, the other of the two single planetary gear sets;
- an input element connected to any one of the rotary elements of the first planetary gear set;
- an output element connected to any one of the rotary elements not connected with the second motor generator, in the rotary elements of the second planetary gear set;
- and
- four torque transmission mechanisms connected to the rotary elements of the first planetary gear set and the second planetary gear set.
(canceled)
A power train for a hybrid vehicle, comprising:
- a first planetary gear set that is a single planetary gear set;
- a second planetary gear set having one rotary element consistently connected with one rotary element of the first planetary gear set;
- a first motor generator connected to one rotary element of the first planetary gear set,
- a second motor generator connected with one rotary element of the second planetary gear set,
- an input element connected to any one of rotary elements of first planetary gear set;
- an output element connected to any one of rotary elements not connected with the second motor generator, in rotary elements of the second planetary gear set;
- a first clutch and a second clutch respectively connecting/disconnecting one rotary element of the first planetary gear set and one rotary element of the second planetary gear set;
- and
- a first brake and a second brake of which at least one is connected with any one of the other rotary elements not connected with the output element of the secondary planetary gear set.
(canceled)
A power train for a hybrid vehicle, comprising:
- a first planetary gear set that is a single planetary gear set;
- a second planetary gear set having one rotary element consistently connected with one rotary element of the first planetary gear set;
- a first motor generator connected to one rotary element of the first planetary gear set;
- a second motor generator connected with one rotary element of the second planetary gear set;
- an input element connected to any one of rotary elements of first planetary gear set;
- an output element connected to any one of rotary elements not connected with the second motor generator, in rotary elements of the second planetary gear set;
- a first clutch connecting/disconnecting one rotary element of the first planetary gear set and one rotary element of the second planetary gear set;
- a second clutch connecting/disconnecting two rotary elements of the first planetary gear set;
- and
- a first brake and a second brake of which at least one is connected with any one of the other rotary elements not connected with the output element of the secondary planetary gear set.
35-36. (canceled)
Dependencies are inferred from the claim text.