Transmission for a motor vehicle

Patent metadata

Field	Value
Publication number	US-10995826-B2
Application number	US-201816607386-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Apr 24, 2017
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A transmission (G) for a motor vehicle which has a transmission input (GW 1 -A), a transmission output (GW 2 -A), five planetary gear sets (P 1 , P 2 , P 3 , P 4 , P 5 ) and six shifting elements (B 1 , B 2 , K 1 , K 2 , K 3 , B 3 ). By selectively actuating the six shifting elements (B 1 , B 2 , K 1 , K 2 , K 3 , B 3 ), ten forward gears and one reverse gear can be selected between the transmission input (GW 1 -A) and the transmission output (GW 2 -A). Further, the drive train is typically incorporated into a motor vehicle.

First claim

The invention claimed is:

1. A transmission for a motor vehicle comprising:
a transmission input,
a transmission output, and first, second, third, fourth and fifth planetary gear sets, and the first, the second, the third, the fourth and the fifth planetary gear sets each comprising first, second and third elements,
first, second, third, fourth, fifth and sixth shifting elements are selectively actuatable to implement a plurality of power flows and different gears via the first, the second, the third, the fourth and the fifth planetary gear sets located between the transmission input and the transmission output;
the third element of the second planetary gear set and the second element of the third planetary gear set are connected with one another in a rotationally fixed manner and are jointly connectable, via the first shifting element, to a non-rotating component;
the first element of the fourth planetary gear set being connectable, via the second shifting element, to the non-rotating component;
the transmission input being connected in a rotationally fixed manner to the first element of the second planetary gear set,
the second element of the second planetary gear set being connected in a rotationally fixed manner to the third element of the fourth planetary gear set;
the second element of the fourth planetary gear set being connected in a rotationally fixed manner to the transmission output and being connectable, via the third shifting element, for conjoint rotation with the second element of the fifth planetary gear set,
the second element of the fifth planetary gear set being connectable, by the fourth shifting element, for conjoint rotation with the first element of the fourth planetary gear set;
the first element of the third planetary gear set being connected in a rotationally fixed manner to the third element of the fifth planetary gear set,
the first element of the fifth planetary gear set is permanently fixed to the non-rotating component;
the third element of the third planetary gear set being connectable, via the fifth shifting element, in a rotationally fixed manner to the second element of the second planetary gear set and the third element of the fourth planetary gear set; and
in a case of the first planetary gear set, a first coupling couples the first element of the first planetary gear set to the non-rotating component, a second coupling couples the second element of the first planetary gear set to the transmission input, and a third coupling couples the third element of the first planetary gear set to the third element of the third planetary gear set, and two of the first, the second and the third couplings being connections for continuous conjoint rotation, and a remaining coupling forms, via the sixth shifting element, a conjointly rotating connection.

2. The transmission according to claim 1 , wherein the second element of the first planetary gear set is connected for conjoint rotation with the transmission input, the third element of the first planetary gear set is connected for conjoint rotation with the third element of the third planetary gear set, and the first element of the first planetary gear set is connectable, via the sixth shifting element, to the non-rotating component.

3. The transmission according to claim 1 , wherein the first element of the first planetary gear set is fixed to the non-rotatable component, the third element of the first planetary gear set is connected for conjoint rotation with the third element of the third planetary gear set, and the second element of the first planetary gear set is connectable to the transmission input, via the sixth shifting element, for conjoint rotation therewith.

4. The transmission according to claim 1 , wherein the first element of the first planetary gear set is fixed to the non-rotating component, the second element of the first planetary gear set is connected for conjoint rotation with the transmission input, and the third element of the first planetary gear set is connectable to the third element of the third planetary gear set, via the sixth shifting element, for conjoint rotation therewith.

5. The transmission according to claim 1 , wherein a first forward gear is implemented by engagement of the first, the fourth and the fifth shifting elements;
a second forward gear is implemented by engagement of the first and the second shifting elements, and one of the fifth shifting element, the sixth shifting element, the third shifting element, and the fourth shifting element;
a third forward gear is implemented by engagement of the second, the fourth and the fifth shifting elements;
a fourth forward gear is implemented by engagement of the second, the fourth and the sixth shifting elements;
a fifth forward gear is implemented by engagement of the second, the third and the sixth shifting elements;
a sixth forward gear is implemented by engagement of the second, the fifth and the sixth shifting elements ;
a seventh forward gear is implemented by engagement of the third, the fifth and the sixth shifting elements (B 3 or K 4 );
an eighth forward gear is implemented by engagement of the fourth, the fifth and the sixth shifting elements;
a ninth forward gear is implemented by engagement of the third, the fourth and the sixth shifting elements;
a tenth forward gear is implemented by engagement of the third, the fourth and the fifth shifting elements;
a first reverse gear is implemented by engagement of the first, the fourth and the sixth shifting elements; and
a second reverse gear is implemented by engagement of the first, the third and the fifth shifting elements.

6. The transmission according to claim 5 , wherein a first additional gear is implemented by engagement of the first, the third and the sixth shifting elements;
a second additional gear is implemented by engagement of the first, the third and the fourth shifting elements; and
a third additional gear is implemented by engagement of the second, the third and the fifth shifting elements.

7. The transmission according to claim 1 , wherein the first, the second, the third and the fourth planetary gear sets are minus planet sets, and the first elements of the first, the second, the third and the fourth planetary gear sets, respectively, are sun gears, the second elements of the first, the second, the third and the fourth planetary gear sets, respectively, are planetary carriers, and the third elements of the first, the second, the third and the fourth planetary gear sets, respectively, are ring gears.

8. The transmission according to claim 1 , wherein the first, the second, the third, the fourth and the fifth planetary gear sets are plus planet sets, and the first elements of the first, the second, the third, the fourth and the fifth planetary gear sets are sun gears, the second elements of the first, the second, the third, the fourth and the fifth planetary gear sets are ring gears, and the third elements of the first, the second, the third, the fourth and the fifth planetary gear sets are planetary carriers.

9. The transmission according to claim 1 , wherein at least one of the first, the second, the third, the fourth, the fifth and the sixth shifting elements is a force-locking shifting element.

10. The transmission according to claim 1 , wherein the first shifting element is a positively locking shifting element.

11. The transmission according to claim 1 , wherein the transmission input is coupled to a power take-off for conjoint rotation therewith.

12. The transmission according to claim 1 , wherein the transmission input is formed on a drive shaft and the transmission output is formed on an output shaft, and the drive s

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Beck Stefan
• Kaltenbach Johannes
• Wechs Michael
• Trübenbach Michael
• Bornträger Kai
• Glückler Johannes
• Moraw Jens
• Niederbrucker Gerhard
• Ziemer Peter

Classifications

• F16H2200/2097

  comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing · CPC title

• Y02T10/62

  Hybrid vehicles · CPC title

• F16H2200/0069

  the gear ratios comprising ten forward speeds · CPC title

• F16H2200/2064

  using at least one positive clutch, e.g. dog clutch · CPC title

• F16H2200/2094

  using positive clutches, e.g. dog clutches · CPC title