Automatic transmission for motor vehicles

Abstract

The invention concerns a transmission ( 1 ) with automatic shifting capabilities and with three spider supported planetary sets ( 2, 3, 4 ), three brakes ( 5, 6, 7 ), and two clutches ( 8, 9 ) for the shifting of six forward moving gears and one reverse gear and having an input shaft ( 10 ) and an output shaft ( 11 ). In this way, the input shaft ( 10 ) is in continual connection with the sun gear ( 16 ) of the second planetary set ( 3 ) and the input shaft ( 10 ) is connectable to the sun gear ( 12 ) of the first planetary set ( 2 ) by means of the first clutch ( 8 ) and/or by means of the second clutch ( 9 ) is also connectable with the spider ( 15 ) of the first planetary set ( 2 ). Further, the sun gear ( 12 ) of the first planetary set ( 2 ) by means of the first brake ( 5 ) and or the spider ( 15 ) of the first planetary set ( 2 ) by means of the second brake ( 6 ) and/or the sun gear ( 20 ) of the third planetary set ( 4 ) by means of the third brake, are all connectable with the housing of the transmission.

1. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the transmission (   1   ) having three spider planetary sets ( 2 ,  3 ,  4 ) in which  a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ) , a third planetary set ( 4 ) is on an exit side of the transmission ( 1 )  and a second planetary set ( 3 ) is  located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the  shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );  
 the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );  
 the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 ); and  
 the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );  
 wherein a sun gear ( 20 ) of the third planetary set ( 4 ) is freely rotatable with respect to the sun, the spider and the internal gears of the first and second planetary sets and is connectable solely with the transmission housing when the third brake ( 7 ) is engaged; and  
 the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ) .  
 
     
     
       2. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the spider ( 15 ) of the first planetary set ( 2 ) is continually connected with the internal gear ( 22 ) of the third planetary set ( 4 ) and the internal gear ( 18 ) of the second planetary set ( 3 ) is continually connected to the spider ( 23 ) of the third planetary set ( 4 ). 
     
     
       3. The motor vehicle transmission with automatic shifting capability according to  claim 1  wherein the first clutch ( 8 ) is activated in a third gear and in a fifth gear, as well as in a reverse gear. 
     
     
       4. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the second clutch ( 9 ) is activated in a fourth gear, in a fifth gear and in a sixth gear. 
     
     
       5. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the first break  brake ( 5 ) is activated in a second gear and in a sixth gear. 
     
     
       6. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the second  third brake ( 6 )  (   7   ) is activated in a first gear, in a second gear, in a third gear and in a fourth gear. 
     
     
       7. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the second brake ( 6 ) is activated in a first gear and in a reverse gear. 
     
     
       8. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the transmission (   1   ) having three spider planetary sets ( 2 ,  3 ,  4 ) in which  a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ) , a third planetary set ( 4 ) is on an exit side of the transmission ( 1 ) , and a second planetary set ( 3 ) is  located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the  shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );  
 the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );  
 the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 );  
 the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );  
 wherein a sun gear ( 20 ) of the third planetary set ( 4 ) is connectable with the transmission housing by the third brake ( 7 );  
 the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ), and  
 the spider ( 15 ) of the first planetary set ( 2 ) is fixedly connected with an internal gear ( 22 ) of the third planetary set ( 4 ) and an internal gear ( 18 ) of the second planetary set ( 3 ) is fixedly connected to a spider ( 23 ) of the third planetary set ( 4 ).  
 
     
     
       9. The motor vehicle transmission with automatic shifting capability according to  claim 8 , wherein the first clutch ( 8 ) is activated in a third gear and in a fifth gear, as well as in a reverse gear. 
     
     
       10. The motor vehicle transmission with automatic shifting capability according to  claim 8 , wherein the second clutch ( 9 ) is activated in a fourth gear, in a fifth gear and in a sixth gear. 
     
     
       11. The motor vehicle transmission with automatic shifting capability according to  claim 8 , wherein the first break  brake ( 5 ) is activated in a second gear and in a sixth gear. 
     
     
       12. The motor vehicle transmission with automatic shifting capability according to  claim 8 , wherein the second  third brake ( 6 )  (   7   ) is activated in a first gear, in a second gear, in a third gear and in a fourth gear. 
     
     
       13. The motor vehicle transmission with automatic shifting capability according to  claim 8 , wherein the second brake ( 6 ) is activated in a first gear and in a reverse gear. 
     
     
       14. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the transmission having three spider planetary sets ( 2 ,  3 ,  4 ) in which a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ), a third planetary set ( 4 ) is on an exit side of the transmission ( 1 ) and a second planetary set ( 3 ) is located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );    the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );    the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 );    the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );    wherein a sun gear ( 20 ) of the third planetary set ( 4 ) is connectable with the transmission housing by the third brake ( 7 );    the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ), and    a first clutch ( 8 ) is activated in a third gear, in a fifth gear and in a reverse gear.    
     
     
       15. The motor vehicle transmission with automatic shifting capability according to  claim 14 , wherein the second clutch ( 9 ) is activated in a fourth gear, in a fifth gear and in a sixth gear. 
     
     
       16. The motor vehicle transmission with automatic shifting capability according to  claim 14 , wherein the first break ( 5 ) is activated in a second gear and in a sixth gear. 
     
     
       17. The motor vehicle transmission with automatic shifting capability according to  claim 14 , wherein the second brake ( 6 ) is activated in a first gear, in a second gear, in a third gear and in a fourth gear. 
     
     
       18. The motor vehicle transmission with automatic shifting capability according to  claim 14 , wherein the second brake ( 6 ) is activated in a first gear and in a reverse gear. 
     
     
       19. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the transmission having three spider planetary sets ( 2 ,  3 ,  4 ) in which a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ), a third planetary set ( 4 ) is on an exit side of the transmission ( 1 ) and a second planetary set ( 3 ) is located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );    the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );    the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 );    the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );    wherein a sun gear ( 20 ) of the third planetary set ( 4 ) is connectable with the transmission housing by the third brake ( 7 );    the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ), and    the second clutch ( 9 ) is activated in a fourth gear, in a fifth gear and in a sixth gear.    
     
     
       20. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the spider having three spider planetary sets ( 2 ,  3 ,  4 ) in which a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ), a third planetary set ( 4 ) is on an exit side of the transmission ( 1 ) and a second planetary set ( 3 ) is located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );    the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );    the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 );    the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );    wherein the sun gear ( 20 ) of the third planetary set ( 4 ) is connectable with the transmission housing by the third brake ( 7 );    the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ), and    the first brake ( 5 ) is activated in a second gear and in a sixth gear.    
     
     
       21. A transmission ( 1 ) for a motor vehicle having a capability of automatic shifting, the transmission having three spider planetary sets ( 2 ,  3 ,  4 ) in which a first planetary set ( 2 ) is on an entry side of the transmission ( 1 ), a third planetary set ( 4 ) is on an exit side of the transmission ( 1 ) and a second planetary set ( 3 ) is located between the first planetary set ( 2 ) and the third planetary set ( 4 ), the transmission ( 1 ) possessing first, second and third brakes ( 5 ,  6 ,  7 ) and first and second clutches ( 8 ,  9 ) for the shifting of six forward gears and one reverse gear, and having one input shaft ( 10 ) and one output shaft ( 11 ) with the following combinations:
 the input shaft ( 10 ) is connected directly with a sun gear ( 16 ) of the second planetary set ( 3 );    the input shaft ( 10 ) is connectable by the first clutch ( 8 ) with a sun gear ( 12 ) of the first planetary set ( 2 ) and connectable with a spider ( 15 ) of the first planetary set ( 2 ) by the second clutch ( 9 );    the sun gear ( 12 ) of the first planetary set ( 2 ) is connectable with a housing of the transmission ( 1 ) by the first brake ( 5 );    the spider ( 15 ) of the first planetary set ( 2 ) is connectable with the housing of the transmission by the second brake ( 6 );    wherein a sun gear ( 20 ) of the third planetary set ( 4 ) is connectable with the transmission housing by the third brake ( 7 );    the output shaft ( 11 ) is fixedly connected with a spider ( 19 ) of the second planetary set ( 3 ) and is fixedly connected with an internal gear ( 14 ) of the first planetary set ( 2 ), and    the third brake ( 7 ) is activated in a first gear, in a second gear, in a third gear and in a fourth gear.    
     
     
       22. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the input shaft (   10   )  and the output shaft  (   11   )  are both located on the same side of the transmission.   
     
     
       23. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the input shaft (   10   )  supplies drive input:      to the sun gear  (   16   )  of the second planetary set  (   3   ) ;        to the sun gear  (   12   )  of the first planetary set  (   2   )  via the first clutch  (   8   ) ; and        to the spider  (   15   )  of the first planetary set  (   2   )  which is connected to the internal gear  (   18   )  of the second planetary set  (   3   )  via the second clutch  (   9   ) ; and        an output of the output shaft  (   11   )  is located between the first, second and third planetary sets  (   2 ,  3  and  4   )  and the first and second clutches  (   8  and  9   ) .     
     
     
       24. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the input shaft (   10   )  includes a torque converter  (   24   )  and a turbine wheel of the torque converter  (   24   )  is connected directly with the sun gear  (   16   )  of the second planetary set  (   3   ) .   
     
     
       25. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein a vibration damper (   26   )  is located between the input shaft  (   10   )  an internal combustion engine  (   25   ) .   
     
     
       26. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein the input shaft (   10   )  and the output shaft  (   11   )  are both located on the same side of the transmission; and      a vibration damper  (   26   )  is located between the input shaft  (   10   )  an internal combustion engine  (   25   ) .     
     
     
       27. The motor vehicle transmission with automatic shifting capability according to  claim 1 , wherein drive is supplied by the output shaft (   11   )  to the drive wheels  (   28  and  29   )  by an additional gear ratio stage and a differential  (   27   ) .   
     
     
       28. A transmission (   1   )  for a motor vehicle having a capability of automatic shifting, the transmission having first, second and third spider planetary sets  (   2 ,  3 ,  4   )  in which a second planetary set  (   3   )  is located between a first planetary set  (   2   )  and a third planetary set  (   4   ) , the transmission  (   1   )  possessing first, second and third brakes  (   5 ,  6 ,  7   )  and first and second clutches  (   8 ,  9   )  for shifting of six forward gears and a reverse gear, and having an input shaft  (   10   )  and an output shaft  (   11   )  with the following combinations:      the input shaft  (   10   )  is connected directly with a sun gear  (   16   )  of the second planetary set  (   3   ) ;        the input shaft  (   10   )  is connectable by the first clutch  (   8   )  with a sun gear  (   12   )  of the first planetary set  (   2   )  and connectable with a spider  (   15   )  of the first planetary set  (   2   )  by the second clutch  (   9   ) ;        the sun gear  (   12   )  of the first planetary set  (   2   )  is connectable with a housing of the transmission  (   1   )  by the first brake  (   5   ) ;        the spider  (   15   )  of the first planetary set  (   2   )  is connectable with the housing of the transmission  (   1   )  by the second brake  (   6   ) ;        wherein a sun gear  (   20   )  of the third planetary set  (   4   )  is connectable with the housing of the transmission  (   1   )  by the third brake  (   7   ) ;        the output shaft  (   11   )  is fixedly connected with a spider  (   23   )  of the third planetary set  (   4   )  and with an internal gear  (   14   )  of the first planetary set  (   2   ) ;        the spider  (   15   )  of the first planetary set  (   2   )  is fixedly connected to an internal gear  (   18   )  of the second planetary set  (   3   ) ; and        a spider  (   19   )  of the second planetary set  (   3   )  is fixedly connected to an internal gear  (   22   )  of the third planetary set  (   4   ) .     
     
     
       29. The motor vehicle transmission with automatic shifting capability according to  claim 28 , wherein the first clutch (   8   )  is activated in a third gear and in a fifth gear, as well as in a reverse gear.   
     
     
       30. The motor vehicle transmission with automatic shifting capability according to  claim 28 , wherein the second clutch (   9   )  is activated in a fourth gear, in a fifth gear and in a sixth gear.   
     
     
       31. The motor vehicle transmission with automatic shifting capability according to  claim 28 , wherein the first brake (   5   )  is activated in a second gear and in a sixth gear.   
     
     
       32. The motor vehicle transmission with automatic shifting capability according to  claim 28 , wherein the third brake (   7   )  is activated in a first gear, in a second gear, in a third gear and in a fourth gear.   
     
     
       33. The motor vehicle transmission with automatic shifting capability according to  claim 28 , wherein the second brake (   6   )  is activated in a first gear and in a reverse gear.