Hybrid drive device for a motor vehicle

Patent metadata

Field	Value
Publication number	US-2016201769-A1
Application number	US-201414913249-A
Country	US
Kind code	A1
Filing date	Aug 1, 2014
Priority date	Aug 21, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

A hybrid drive device for a motor vehicle includes an internal combustion engine, an electric machine, and two planetary gear trains which are shiftable into different gear stages by shifting elements and brakes and which are connectable via input elements and output elements with a driven input shaft and an output shaft and have reaction elements which can be coupled or braked. The internal combustion engine is in driving relation to a first input shaft and the electric machine is in driving relation to a second coaxial input shaft. The two planetary gear trains are coupled to each other such that via the clutches and brake shifting of four forward gears can be implemented via the internal combustion engine and shifting of three forward gears or reverse gears can be implemented via the electric machine.

First claim

1 .- 9 . (canceled)

10 . A hybrid drive device for a motor vehicle, comprising:
a first input shaft; a second input shaft disposed in coaxial relationship to the first input shaft; a common output shaft; an internal combustion engine in driving relation to the first input shaft; an electric machine in driving relation to the second input shaft; and first and second planetary gear trains shiftable into different gear stages and each being connectable via input elements with the first and second input shafts and via output elements with the output shaft, wherein reaction elements of the first and second planetary gear trains can be coupled or braked, said first planetary gear train including a housing-fixed sun gear, a spider, and a ring gear which is fixedly connected to the second input shaft, said second planetary gear train including a sun gear supported by the second input shaft, a spider fixedly connected to the output shaft, and a ring gear, said first and second planetary gear trains being coupled to each other such that via four clutches and a housing-fixed brake the internal combustion engine is capable for shifting of four forward gears and the electric machine is capable for shifting of three gears, with a first one of the clutches being capable to connect the spider of the first planetary gear to the first input shaft, with a second one of the clutches being capable to connect the ring gear of the first planetary gear with the first input shaft, with a third one of the clutches being capable to connect the spider of the first planetary gear to the output shaft, and with a fourth one of the clutches being capable to connect the ring gear of the second planetary gear with the second input shaft or to connect the spider of the second planetary gear with the second input shaft, said brake being configured to brake the ring gear of the second planetary gear train.

11 . The hybrid drive device of claim 10 , wherein a through-drive from the internal combustion engine to the electric machine is controllable without drive connection via actuation of the first or second one of the clutches, with the first clutch realizing a different gear transmission ratio than the second clutch between the internal combustion engine and the electric machine.

12 . The hybrid drive device of claim 10 , wherein the first and second clutches form a double clutch, with the first and second clutches being arranged axially behind one another.

13 . The hybrid drive device of claim 10 , wherein the first and second clutches form a double clutch, with the first and second clutches being arranged radially above one another.

14 . The hybrid drive device of claim 10 , wherein the first and second planetary gear trains are each configured as a negative-ratio gear train.

Assignees

• Audi Ag

Inventors

• Scholle Tassilo
• Vollmer Frank
• Hummel Steffen
• Meixner Christian
• Müller Jörg
• Resch Rico
• Leesch Mirko

Classifications

• Y02T10/62

  Hybrid vehicles · CPC title

• F16H3/725 Primary

  with means to change ratio in the mechanical gearing · CPC title

• Y10S903/911

  with two or more gear sets · CPC title

• F16H2200/2007

  with two sets of orbital gears · CPC title

• F16H2200/2043

  with five engaging means · CPC title