Transmission for hybrid electric vehicle
AssigneeHyundai Motor Company
InventorsJongsool Park, Changwook Lee
Life of this patent
Estimating the term…
Abstract
A transmission for a hybrid electric vehicle may include an input element where rotation power may be inputted and an output element from which the rotation power may be outputted, a first motor generator and a second motor generator, a first planetary gear set where the input element, the output element, and the first motor generator may be connected, a second planetary gear set that may be a multiple planetary gear set where the output element and the second motor generator may be connected and that includes at least four or more rotary elements, and a first clutch and a second clutch.
Claims16
A transmission for a hybrid electric vehicle, comprising:
- an input element where rotation power is inputted and an output element from which the rotation power is outputted;
- a first motor generator and a second motor generator;
- a first planetary gear set where the input element, the output element, and the first motor generator are connected;
- a second planetary gear set that is a multiple planetary gear set where the output element and the second motor generator are connected and that includes at least four or more rotary elements;
- a first clutch and a second clutch;
- a third clutch that switches one rotary element to be rotatable, which is not connected with the output element, the first clutch, and the second clutch, in rotary elements of the second planetary gear set, in order to make a fixed gear stage when the second clutch operates,
- wherein a first rotary element of the first planetary gear set and a first rotary element of the second planetary gear set are kept connected with the output element,
- a second rotary element and a third rotary element of the first planetary gear set are connected with the input element and the first motor generator, respectively,
- a second rotary element of the second planetary gear set is connected with the second motor generator,
- a third rotary element of the second planetary gear set is switched to be rotatable by the first clutch, and
- the third rotary element of the first planetary gear set and a fourth rotary element of the second planetary gear set are switched to be selectively connected by the second clutch.
A transmission for a hybrid electric vehicle, comprising:
- a first planetary gear set including three rotary elements connected with an input element, an output element, and a first motor generator, respectively;
- a second planetary gear set including at least four or more rotary elements having a rotary element connected to the output element, a rotary element having a same rotation speed as the rotation speed of the rotary element connected to the first motor generator of the first planetary gear set, and a rotary element connected to a second motor generator;
- a second clutch connecting/disconnecting the rotary element of the second planetary gear set which has the same rotation speed as the rotation speed of the rotary element connected to the first motor generator of the first planetary gear set with/from the rotary element connected to the first motor generator of the first planetary gear set;
- a first clutch that switches the rotatable state of one rotary element that is not connected to the output element, the second motor generator, and the second clutch, in the rotary elements of the second planetary gear set;
- and
- a third clutch that switches the rotary element of the second planetary gear set which is connected with the second motor generator to be rotatable.
Dependencies are inferred from the claim text.