Hybrid driving device

Patent metadata

Field	Value
Publication number	US-9950605-B2
Application number	US-201515326271-A
Country	US
Kind code	B2
Filing date	Jul 3, 2015
Priority date	Jul 29, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A hybrid driving device that includes a first input that is linked to an internal combustion engine; a rotary electric machine; a transmission that changes a speed of rotation of a second input, and transmits the rotation to an output; a rotor support which rotates integrally with a rotor of the rotary electric machine; a first engagement device; a second engagement device; and a case.

First claim

The invention claimed is:

1. A hybrid driving device comprising:
a first input that is linked to an internal combustion engine;
a rotary electric machine;
a transmission that changes a speed of rotation of a second input, and transmits the rotation to an output;
a rotor support which rotates integrally with a rotor of the rotary electric machine;
a first engagement device;
a second engagement device; and
a case, wherein:
the first engagement device links or separates the first input and the second input to and from each other in accordance with a state of engagement of the first engagement device regardless of a state of engagement of the second engagement device,
the second engagement device links or separates the rotor support and the second input to and from each other in accordance with a state of engagement of the second engagement device regardless of a state of engagement of the first engagement device,
the rotor support includes a supporting tubular portion having a tubular shape that supports an inner circumferential surface of the rotor of the rotary electric machine from a radially inner side, and the first engagement device and the second engagement device are disposed on the radially inner side relative to the supporting tubular portion,
the case has a tubular case boss portion,
the second input includes an input tubular portion having a tubular shape that is disposed on a radially outer side of the case boss portion,
both of the first engagement device and the second engagement device are engagement devices which are operated by a hydraulic pressure, and which are respectively provided with an oil chamber, and
the input tubular portion supports a first oil chamber forming member which is a member that forms the oil chamber of the first engagement device, and a second oil chamber forming member which is a member that forms the oil chamber of the second engagement device.

2. The hybrid driving device according to claim 1 , wherein:
an outer circumferential surface of the input tubular portion abuts against at least a part of the first oil chamber forming member and at least a part of the second oil chamber forming member, and supports the first oil chamber forming member and the second oil chamber forming member from the radially inner side, and
the input tubular portion is linked to rotate integrally with the first oil chamber forming member and the second oil chamber forming member.

3. The hybrid driving device according to claim 1 , wherein the first oil chamber forming member includes at least a first piston, the second oil chamber forming member includes at least a second piston, and an outer circumferential surface of the input tubular portion abuts against an inner circumferential surface of the first piston and an inner circumferential surface of the second piston to be slidable, and supports the first piston and the second piston from the radially inner side, and configures an inner circumferential surface of the oil chamber of the first engagement device and an inner circumferential surface of the oil chamber of the second engagement device.

4. The hybrid driving device according to claim 2 , wherein the first oil chamber forming member includes at least a first piston, the second oil chamber forming member includes at least a second piston, and the outer circumferential surface of the input tubular portion abuts against an inner circumferential surface of the first piston and an inner circumferential surface of the second piston to be slidable, and supports the first piston and the second piston from the radially inner side, and configures an inner circumferential surface of the oil chamber of the first engagement device and an inner circumferential surface of the oil chamber of the second engagement device.

5. The hybrid driving device according to claim 1 , wherein:
the second input has a radially extending portion which extends to a radially outer side from the input tubular portion,
one side in the shaft direction of the input tubular portion is a shaft first direction side, and the other side in the shaft direction of the input tubular portion is a shaft second direction side,
the oil chamber of the first engagement device is formed to be adjacent to the shaft first direction side of the radially extending portion, and
the oil chamber of the second engagement device is formed to be adjacent to the shaft second direction side of the radially extending portion.

6. The hybrid driving device according to claim 1 , wherein an oil path which supplies oil to the oil chamber of the first engagement device, and an oil path which supplies oil to the oil chamber of the second engagement device, are formed in the input tubular portion and the case boss portion.

7. The hybrid driving device according to claim 1 , wherein:
the rotor support includes a first radially supporting portion which supports the supporting tubular portion from the radially inner side and extends in a radial direction, and a second radially supporting portion which is disposed at a position in the shaft direction different from the first radially supporting portion, supports the supporting tubular portion from the radially inner side, and extends in the radial direction, and
the first engagement device and the second engagement device are further inwards in the radial direction than the supporting tubular portion, and are disposed between the first radially supporting portion and the second radially supporting portion in the shaft direction.

8. The hybrid driving device according to claim 1 , wherein:
a tubular connection oil path forming member which forms an oil path that connects an oil path formed in the case boss portion and an oil path formed in the input tubular portion to each other, is provided between the case boss portion and the input tubular portion,
the second input includes a tubular inner side portion having a tubular shape which is disposed on the radially inner side of the case boss portion, and which is supported to be rotatable with respect to the inner circumferential surface of the case boss portion,
the input tubular portion and the inner tubular portion are linked to each other in a radial direction to be integrally rotated, by a radially linking portion provided at a position that does not overlap with the case boss portion in the radial direction, and
in the input tubular portion, a part on an opposite side of the connection oil path forming member from a side on which the radially linking portion is disposed, is supported to be rotatable with respect to the case via the rotor support.

9. The hybrid driving device according to claim 6 , wherein:
a tubular connection oil path forming member which forms an oil path that connects an oil path formed in the case boss portion and an oil path formed in the input tubular portion to each other, is provided between the case boss portion and the input tubular portion,
the second input includes a tubular inner side portion having a tubular shape which is disposed on the radially inner side of the case boss portion, and which is supported to be rotatable with respect to the inner circumferential surface of the case boss portion,
the input tubular portion and the inner tubular portion are linked to each other in a radial direction to be integrally rotated, by a radially linking portion provided at a position that does not overlap with the case boss portion in the radial direction, and
in the input tubular portion, a part on an opposite side of the connection oil path forming member from a side on which the radially linking portion is disposed, is supported to be rotatable with respect to the case via the rotor support.

10. The hybrid d

Assignees

• Aisin Aw Co
• Toyota Motor Co Ltd

Inventors

• Suyama Daiki
• Hattori Katsuhiko
• Sugiura Hikaru
• Okishima Tatsuya
• Ideshio Yukihiko

Classifications

• F16D25/10

  Clutch systems with a plurality of fluid-actuated clutches (arrangements or mounting of clutches in vehicles B60K17/00) · CPC title

• Y10S903/909

  Gearing · CPC title

• F16D25/0638

  with more than two discs, e.g. multiple lamellae · CPC title

• F16D13/74

  Features relating to lubrication · CPC title

• F16D13/72

  Features relating to cooling · CPC title