Hybrid power train

Patent metadata

Field	Value
Publication number	US-9676265-B2
Application number	US-201514729391-A
Country	US
Kind code	B2
Filing date	Jun 3, 2015
Priority date	Dec 16, 2014
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A hybrid power train may include a first friction element installed between an engine and a motor, a second friction element installed between the motor and the output shaft, and a planetary gear set including a plurality of rotating elements, in which the second friction element comprises a brake connected to any one rotating element of the planetary gear set.

First claim

What is claimed is:

1. A hybrid power train, comprising:
a first friction element installed between an engine and a motor;
a second friction element installed between the motor and an output shaft; and
a planetary gear set including a plurality of rotating elements,
wherein the second friction element comprises a brake connected to a rotating element of the planetary gear set,
wherein the planetary gear set includes a sun gear, a carrier, and a ring gear and the second friction element is a brake which is installed between the sun gear of the planetary gear set and a transmission housing, and
wherein the motor is connected to an input shaft through the carrier of the planetary gear set.

2. The hybrid power train according to claim 1 , wherein the planetary gear set is installed at an inner diameter side of the motor.

3. The hybrid power train according to claim 1 , wherein the brake is configured to selectively perform a coupling operation, a releasing operation, and a slip operation.

4. The hybrid power train according to claim 1 , wherein the first friction element comprises a dual clutch.

5. A hybrid power train, comprising:
an input shaft connected to an engine;
a first friction element installed in a middle of the input shaft;
a motor installed in a transmission housing;
a planetary gear set including a plurality of rotating elements; and
a second friction element installed between the motor and an output shaft,
wherein the second friction element comprises a brake connected to a rotating element of the planetary gear set,
wherein the planetary gear set includes a sun gear, a carrier, and a ring gear and the second friction element is a brake which is installed between the sun gear of the planetary gear set and the transmission housing, and
wherein the motor is connected to the input shaft through the carrier of the planetary gear set.

6. The hybrid power train according to claim 5 , wherein the planetary gear set is installed at an inner diameter side of the motor.

7. The hybrid power train according to claim 5 , wherein the brake is configured to selectively perform a coupling operation, a releasing operation, and a slip operation.

8. The hybrid power train according to claim 5 , wherein the first friction element comprises a dual clutch.

9. The hybrid power train according to claim 8 , wherein the dual clutch is installed at one side of the input shaft.

10. The hybrid power train according to claim 5 , wherein the ring gear of the planetary gear set is connected to an input gear and the input gear is meshed with an output gear.

11. The hybrid power train according to claim 10 , wherein the output gear is installed at an intermediate shaft and the intermediate shaft is disposed to be parallel with the output shaft.

12. The hybrid power train according to claim 10 , wherein a speed synchronization mechanism is installed at one side of the intermediate shaft, and adjacent to the output gear.

13. The hybrid power train according to claim 12 , wherein the speed synchronization mechanism comprises a synchronizer.

14. The hybrid power train according to claim 12 , wherein the speed synchronization mechanism comprises a dog clutch.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Choi Kum Lim

Classifications

• F16H3/006

  power being selectively transmitted by parallel flow paths, e.g. dual clutch transmissions · CPC title

• B60K6/48

  Parallel type · CPC title

• F16H3/093

  with two or more countershafts · CPC title

• F16H3/74 Primary

  Complexes, not using actuatable speed-changing or regulating members, e.g. with gear ratio determined by free play of frictional or other forces · CPC title

• Y10S903/912

  Drive line clutch · CPC title