Planetary gear train of automatic transmission for vehicle

A planetary gear train of an automatic transmission for a vehicle, the planetary gear train comprising:

• an input shaft configured to receive a torque from an engine;
• an output shaft configured to output a torque;
• a first planetary gear set including first, second, and third rotation elements;
• a second planetary gear set including fourth, fifth, and sixth rotation elements;
• a third planetary gear set including seventh, eighth, and ninth rotation elements;
• a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements;
• a fifth planetary gear set including thirteenth, fourteenth, and fifteenth rotation elements;
• a first shaft connected with the first rotation element and the input shaft;
• a second shaft connected with the fourteenth rotation element and the output shaft;
• a third shaft connected with the fifth rotation element, the eleventh rotation element, and the thirteenth rotation element;
• a fourth shaft connected with the eighth rotation element and the fifteenth rotation element;
• a fifth shaft connected with the sixth rotation element and the tenth rotation element;
• a sixth shaft connected with the twelfth rotation element;
• and
• a plurality of shafts configured to selectively and respectively connect a transmission housing to corresponding rotation elements selected from the rotation elements of the first, second, and third planetary gear sets, wherein the selected corresponding rotation elements are not connected to any of the first to sixth shafts.

A planetary gear train of an automatic transmission for a vehicle, the planetary gear train comprising:

• an input shaft configured to receive a torque from an engine;
• an output shaft configured to output a torque;
• a first planetary gear set including first, second, and third rotation elements;
• a second planetary gear set including fourth, fifth, and sixth rotation elements;
• a third planetary gear set including seventh, eighth, and ninth rotation elements;
• a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements;
• a fifth planetary gear set including thirteenth, fourteenth, and fifteenth rotation elements;
• a first shaft connected with the first rotation element and the input shaft;
• a second shaft connected with the fourteenth rotation element and the output shaft;
• a third shaft connected with the fifth rotation element, the eleventh rotation element, and the thirteenth rotation element;
• a fourth shaft connected with the eighth rotation element and the fifteenth rotation element;
• a fifth shaft connected with the sixth rotation element and the tenth rotation element;
• a sixth shaft connected with the twelfth rotation element;
• and
• seventh, eighth, and ninth shafts configured to selectively and respectively connect, by brakes, a transmission housing to corresponding rotation elements selected from the rotation elements of the first, second, and third planetary gear sets, wherein the corresponding rotation elements are not connected to any one of the first to sixth shafts.