Damper device

Patent metadata

Field	Value
Publication number	US-12006997-B2
Application number	US-201917413620-A
Country	US
Kind code	B2
Filing date	Dec 26, 2019
Priority date	Dec 26, 2018
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A damper device including an input element to which a torque from an engine is transmitted; an output element; an elastic body to transmit torque between the input element and the output element; and rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element. The output element is coupled to a rotor of an electric motor, which is coupled to an input shaft of a transmission. The rotary inertia mass damper includes a planetary gear mechanism having a carrier that supports pinion gears, the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body.

First claim

The invention claimed is:

1. A damper device comprising:
an input element to which a torque from an engine is transmitted;
an output element;
an elastic body that transmits a torque between the input element and the output element; and
a rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element, wherein
the output element is coupled to a rotor of an electric motor,
the rotor of the electric motor is coupled to an input shaft of a transmission,
the rotary inertia mass damper includes a planetary gear mechanism having a sun gear, a ring gear, a plurality of pinion gears, and a carrier that supports the plurality of pinion gears, and
the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body,
wherein
the ring gear is a part of the output element,
the sun gear functions as the mass body, and
the elastic body is disposed on an outer side of the plurality of pinion gears in a radial direction of the damper device.

2. The damper device according to claim 1 , wherein the input element including the carrier is formed so as to surround the elastic body, the ring gear, and the plurality of pinion gears.

3. The damper device according to claim 2 , wherein
the carrier is formed in an annular shape, and
the sun gear includes a gear member having external teeth that mesh with gear teeth of the plurality of pinion gears, and an annular member that is disposed on an outer side of the carrier in an axial direction of the damper device and that is coupled to the gear member on an inner side of the carrier in a radial direction of the damper device.

4. The damper device according to claim 2 , wherein the carrier includes a torque transmitting and receiving portion that transmits and receives a torque to and from the corresponding elastic body, and supports one end of a plurality of pinion shafts each inserted through the pinion gear on an inner side of the torque transmitting and receiving portion in the radial direction of the damper device.

5. The damper device according to claim 1 , wherein the damper device is a dry damper.

6. The damper device according to claim 1 , wherein a clutch is disposed between the damper device and the electric motor, and between the electric motor and the transmission.

7. The damper device according to claim 1 , wherein a moment of inertia of the mass body, a moment of inertia of the plurality of pinion gears, and a gear ratio of the planetary gear mechanism are set such that a moment of inertia distributed to the output element by the planetary gear mechanism is a negative value.

8. A damper device comprising:
an input element to which a torque from an engine is transmitted;
an output element;
an elastic body that transmits a torque between the input element and the output element; and
a rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element, wherein
the output element is coupled to a rotor of an electric motor,
the rotor of the electric motor is coupled to an input shaft of a transmission,
the rotary inertia mass damper includes a planetary gear mechanism having a sun gear, a ring gear, a plurality of pinion gears, and a carrier that supports the plurality of pinion gears, and
the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body, wherein
the sun gear is a part of the output element,
the ring gear functions as the mass body, and
the elastic body is disposed on an inner side of the plurality of pinion gears in a radial direction of the damper device.

9. The damper device according to claim 8 , wherein the input element including the carrier is formed so as to surround the elastic body, the ring gear, and the plurality of pinion gears.

10. The damper device according to claim 8 , wherein
the damper device further has an intermediate element, and
the elastic body includes an input side elastic body that transmits a torque between the input element and the intermediate element, and an output side elastic body that transmits a torque between the intermediate element and the output element.

11. The damper device according to claim 8 , wherein the damper device further includes a second elastic body that acts in parallel with the elastic body when a torque transmitted between the input element and the output element is equal to or more than a predetermined value.

12. The damper device according to claim 11 , wherein the second elastic body is disposed on an outer side of the elastic body in a radial direction of the damper device.

13. The damper device according to claim 12 , wherein the second elastic body is disposed so as to be adjacent to the plurality of pinion gears in a circumferential direction.

14. The damper device according to claim 11 , wherein the second elastic body is disposed on an inner side of the elastic body in a radial direction of the damper device.

15. The damper device according to claim 14 , wherein the second elastic body is disposed so as to be adjacent to the plurality of pinion gears in a circumferential direction.

16. The damper device according to claim 11 , wherein the second elastic body is disposed so as to at least partially overlap with the elastic body when viewed in a radial direction of the damper device.

17. The damper device according to claim 16 , wherein the elastic body is a coil spring, and the second elastic body is disposed inside the elastic body coaxially with the elastic body.

18. The damper device according to claim 8 , wherein the damper device is a dry damper.

19. The damper device according to claim 8 , wherein a clutch is disposed between the damper device and the electric motor, and between the electric motor and the transmission.

20. The damper device according to claim 8 , wherein a moment of inertia of the mass body, a moment of inertia of the plurality of pinion gears, and a gear ratio of the planetary gear mechanism are set such that a moment of inertia distributed to the output element by the planetary gear mechanism is a negative value.

Assignees

• Aisin Corp
• Aisin Aw Ind Co Ltd

Inventors

• Yoshikawa Takuya
• Kinoshita Tomonori
• Kato Akiyoshi
• Otsuka Ryosuke
• Oi Yoichi
• Mizukami Yu
• Ogawa Aki

Classifications

• F16F15/13157 Primary

  with a kinematic mechanism or gear system, e.g. planetary (F16F15/13128 takes precedence) · CPC title

• F16D3/12

  specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D3/80) · CPC title

• B60Y2400/48

  Vibration dampers, e.g. dual mass flywheels · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60K6/46

  Series type · CPC title