Transmission for a hybrid drive arrangement, hybrid drive arrangement, vehicle, method for operating the hybrid drive arrangement, computer program and storage medium

Patent metadata

Field	Value
Publication number	US-11072230-B2
Application number	US-201816636134-A
Country	US
Kind code	B2
Filing date	Jul 31, 2018
Priority date	Aug 2, 2017
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

The invention relates to a transmission ( 100 ) for a hybrid drive arrangement which can be coupled to two drive assemblies ( 7, 8 ), comprising an input shaft ( 10 ), and an output shaft ( 11 ), at least one first, second and third shifting element (SE 1, SE 2, SE 3 ), and at least one double planetary gear ( 5 ), comprising a first sun gear and a first ring gear and a second sun gear and a second ring gear and a planet carrier. The input shaft ( 10 ) can be coupled to the planet carrier of double planetary gear ( 5 ) by means of the first shifting element (SE 1 ) and can be coupled to the first sun gear of the double planetary gear ( 5 ) by means of the second shifting element (SE 2 ), and can be coupled to the first ring gear of the double planetary gear ( 5 ) by means of the third shifting element (SE 3 ) and the output shaft ( 11 ) is coupled to the planet carrier of the double planetary gear ( 5 ).

First claim

The invention claimed is:

1. A transmission ( 100 ) for a hybrid drive arrangement, the transmission ( 100 ) configured to be coupled to two drive units ( 7 , 8 ), the transmission comprising:
an input shaft ( 10 ) and an output shaft ( 11 ),
at least a first, a second and a third shifting element (SE 1 , SE 2 , SE 3 ), and
at least one double planetary transmission ( 5 ), having a first sun gear and a first internal gear and a second sun gear and a second internal gear and a planetary carrier,
the transmission further configured to

couple the input shaft ( 10 ) via the first shifting element (SE 1 ) to the planetary carrier of the double planetary transmission ( 5 ), and
couple said input shaft ( 10 ) via the second shifting element (SE 2 ) to the first sun gear of the double planetary transmission ( 5 ), and
couple said input shaft ( 10 ) via the third shifting element (SE 3 ) to the first internal gear of the double planetary transmission ( 5 ), and wherein
the output shaft ( 11 ) is fixedly coupled to the planetary carrier of the double planetary transmission ( 5 ).

2. The transmission as claimed in claim 1 , further comprising a fourth shifting element (SE 4 ) configured to brake the second internal gear of the double planetary transmission ( 5 ).

3. The transmission as claimed in claim 2 , further comprising a fifth shifting element (SE 5 ) configured to brake the second sun gear of the double planetary transmission ( 5 ).

4. The transmission as claimed in claim 1 , wherein the first shifting element (SE 1 ) comprises a slipping clutch.

5. The transmission as claimed in claim 1 , wherein the second, the third, or both the second and the third shifting elements (SE 2 , SE 3 ) comprise a claw coupling.

6. The transmission as claimed in claim 3 , wherein the fourth, the fifth, or both the fourth and the fifth shifting elements (SE 4 , SE 5 ) comprise a brake.

7. The transmission as claimed in claim 1 , configured to couple an internal combustion engine to the input shaft ( 10 ), to couple an electric machine to the first sun gear of the double planetary transmission ( 5 ).

8. The transmission as claimed in claim 1 , further configured to changes transmission ratios of the transmission ( 100 ) without traction force being interrupted.

9. The transmission as claimed in claim 1 , further comprising an actuator ( 50 ) for actuating at least one of the shifting elements (SE 1 . . . SE 5 ) in a manner which is dependent on a predefined operating specification signal (BV).

10. A hybrid drive arrangement ( 200 ) having a transmission ( 100 ) as claimed in claim 1 , the hybrid drive arrangement comprising a second drive unit ( 8 ) and/or a pulse inverter ( 60 ), an electric energy source ( 70 ) or a first drive unit ( 7 ).

11. A vehicle ( 300 ) having a hybrid drive arrangement ( 200 ) as claimed in claim 10 .

12. A method ( 400 ) for operating a hybrid drive arrangement ( 200 ) having a transmission ( 100 ) as claimed in claim 1 ,
the method comprising:
determining ( 410 ) an operating specification signal (BV); and
actuating ( 420 ) at least one of the shifting elements (SE 1 . . . SE 5 ) in order to set the functionality of the transmission ( 100 ) in a manner which is dependent on the operating specification signal (BV).

13. A non-transitory, computer-readable storage media containing program instructions that when executed by a computer cause the computer to control a transmission having
an input shaft ( 10 ) and an output shaft ( 11 ),
at least a first, a second and a third shifting element (SE 1 , SE 2 , SE 3 ), and
at least one double planetary transmission ( 5 ), having a first sun gear and a first internal gear and a second sun gear and a second internal gear and a planetary carrier,
the transmission further configured to

couple the input shaft ( 10 ) via the first shifting element (SE 1 ) to the planetary carrier of the double planetary transmission ( 5 ), and
couple said input shaft ( 10 ) via the second shifting element (SE 2 ) to the first sun gear of the double planetary transmission ( 5 ), and
couple said input shaft ( 10 ) via the third shifting element (SE 3 ) to the first internal gear of the double planetary transmission ( 5 ), wherein
the output shaft ( 11 ) is fixedly coupled to the planetary carrier of the double planetary transmission ( 5 )
to
determine ( 410 ) an operating specification signal (BV); and
actuate ( 420 ) at least one of the shifting elements (SE 1 . . . SE 5 ) in order to set the functionality of the transmission ( 100 ) in a manner which is dependent on the operating specification signal (BV).

Assignees

• Bosch Gmbh Robert

Inventors

• Dempel Rolf Lucius
• Eszterle Dominik
• Huber Thomas
• Wirth Christian
• Brummer Simon
• Smejkal Tom

Classifications

• F16H2200/0043

  the gear ratios comprising four forward speeds · CPC title

• F16H57/082

  Planet carriers · CPC title

• F16H2200/2005

  with one sets of orbital gears · CPC title

• F16H2003/445

  without permanent connection between the input and the set of orbital gears · CPC title

• B60K6/365 Primary

  with the gears having orbital motion · CPC title