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US 2019/0056015 A1Published application
Vehicular multi-stage transmission
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJae Chang Kook, Hyun Sik Kwon, Ki Tae Kim, Won Min Cho, Seong Wook Hwang, Seong Wook Ji
Life of this patent
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Abstract
A vehicular multi-stage transmission is provided. In particular, the transmission includes an input shaft and an output shaft. A first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and a fifth planetary gear set (PG5) are provided and each is disposed between the input shaft and the output shaft to transfer a rotational force and has three rotation elements. Additionally, at least six gear-shifting elements are connected to the rotation elements of the planetary gear sets.
Claims7
A vehicular multi-stage transmission, comprising:
- an input shaft (IN) and an output shaft (OUT);
- a first planetary gear set (PG1), a second planetary gear set (PG2), a third planetary gear set (PG3), a fourth planetary gear set (PG4), and a fifth planetary gear set (PG5), each of which is disposed between the input shaft (IN) and the output shaft (OUT) to transfer a rotational force, wherein each planetary gear set includes three rotation elements;
- and
- at least six gear-shifting elements connected to the rotation elements of the planetary gear sets,
- wherein a first rotation element of the first planetary gear set (PG1) is fixedly connected to a first rotation element of the second planetary gear set (PG2) and selectively connected to a transmission case (CS) by a first of the gear-shifting elements, a second rotation element of the first planetary gear set (PG1) is fixedly connected to a third rotation element of the fifth planetary gear set (PG5), and a third rotation element of the first planetary gear set (PG1) is selectively connected to the transmission case (CS) by a second of the gear-shifting elements;
- wherein a second rotation element of the second planetary gear set (PG2) is fixedly connected to the input shaft (IN) and selectively connected to a third rotation element of the third planetary gear set (PG3), and a third rotation element of the second planetary gear set (PG2) is selectively connected to each of a first rotation element and a second rotation element of the third planetary gear set (PG3);
- wherein a first rotation element of the third planetary gear set (PG3) is fixedly connected to a first rotation element of the fourth planetary gear set (PG4), and the second rotation element of the third planetary gear set (PG3) is fixedly connected to a second rotation element of the fourth planetary gear set (PG4) and selectively connected to the third rotation element of the fifth planetary gear set (PG5);
- wherein a third rotation element of the fourth planetary gear set (PG4) is fixedly connected to a first rotation element of the fifth planetary gear set (PG5), and
- wherein a second rotation element of the fifth planetary gear set (PG5) is fixedly connected to the output shaft (OUT).
6 more elements
A vehicular multi-stage transmission, comprising:
- a first planetary gear set (PG1), a second planetary gear set (PG2), a third planetary gear set (PG3), a fourth planetary gear set (PG4), and a fifth planetary gear set (PG5), each of which has three rotation elements;
- six gear-shifting elements configured to selectively provide a frictional force;
- and
- ten rotational shafts connected to the rotation elements of the planetary gear sets,
- wherein a first rotational shaft (A1) is directly connected to a first rotation element of the first planetary gear set (PG1) and a first rotation element of the second planetary gear set (PG2);
- wherein a second rotational shaft (A2) is directly connected to a second rotation element of the first planetary gear set (PG1) and a third rotation element of the fifth planetary gear set (PG5);
- wherein a third rotational shaft (A3) is directly connected to a third rotation element of the first planetary gear set (PG1);
- wherein a fourth rotational shaft (A4) is an input shaft (IN) directly connected to a second rotation element of the second planetary gear set (PG2);
- wherein a fifth rotational shaft (A5) is directly connected to a third rotation element of the second planetary gear set (PG2);
- wherein a sixth rotational shaft (A6) is directly connected to a first rotation element of the third planetary gear set (PG3) and a first rotation element of the fourth planetary gear set (PG4);
- wherein a seventh rotational shaft (A7) is directly connected to a second rotation element of the third planetary gear set (PG3) and a second rotation element of the fourth planetary gear set (PG4);
- wherein an eighth rotational shaft (A8) is directly connected to a third rotation element of the third planetary gear set (PG3);
- wherein a ninth rotational shaft (A9) is directly connected to a third rotation element of the fourth planetary gear set (PG4) and a first rotation element of the fifth planetary gear set (PG5);
- wherein a tenth rotational shaft (A10) is an output shaft (OUT) directly connected to a second rotation element of the fifth planetary gear set (PG5), and
- wherein a fast clutch (CL1) among the six gear-shifting elements is installed between the fourth rotational shaft (A4) and the eighth rotational shaft (A8), a second clutch (CL2) is installed between the fifth rotational shaft (A5) and the seventh rotational shaft (A7), a third clutch (CL3) is installed between the fifth rotational shaft (A5) and the sixth rotational shaft (A6), a fourth clutch (CL4) is installed between the second rotational shaft (A2) and the seventh rotational shaft (A7), a first brake (B1) is installed between the first rotational shaft (A1) and the transmission case (CS), and a second brake (B2) is installed between the third rotational shaft (A3) and the transmission case (CS).
12 more elements
Dependencies are inferred from the claim text.