Planetary gear train of automatic transmission for vehicle

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

• an input shaft receiving an engine torque;
• an output shaft outputting a shifted torque;
• a first planetary gear set having a first rotation element, a second rotation element, and a third rotation element;
• a second planetary gear set having a fourth rotation element, a fifth rotation element, and a sixth rotation element;
• a third planetary gear set having a seventh rotation element, an eighth rotation element, and a ninth rotation element;
• a fourth planetary gear set having a tenth rotation element, an eleventh rotation element, and a twelfth rotation element;
• a fifth planetary gear set having a thirteenth rotation element, a fourteenth rotation element, and a fifteenth rotation element;
• a first shaft fixedly connected to the second rotation element and the input shaft;
• a second shaft fixedly connected to the fourteenth rotation element and the output shaft;
• a third shaft fixedly connected to the first rotation element and the thirteenth rotation element;
• a fourth shaft fixedly connected to the third rotation element, the fourth rotation element, and the eighth rotation element;
• a fifth shaft fixedly connected to the ninth rotation element;
• a sixth shaft fixedly connected to the eleventh rotation element and the fifteenth rotation element;
• and
• a plurality of shafts each selectively connecting a corresponding element to a transmission housing, the corresponding element being a rotation element of the first to fourth planetary gear sets which is not fixedly connected to the first to sixth shafts.

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

• an input shaft receiving an engine torque;
• an output shaft outputting a shifted torque;
• a first planetary gear set having a first rotation element, a second rotation element, and a third rotation element;
• a second planetary gear set having a fourth rotation element, a fifth rotation element, and a sixth rotation element;
• a third planetary gear set having a seventh rotation element, an eighth rotation element, and a ninth rotation element;
• a fourth planetary gear set having a tenth rotation element, an eleventh rotation element, and a twelfth rotation element;
• a fifth planetary gear set having a thirteenth rotation element, a fourteenth rotation element, and a fifteenth rotation element;
• wherein the second rotation element is fixedly connected to the input shaft,
• wherein the fourteenth rotation element is fixedly connected to the output shaft,
• wherein the first rotation element is fixedly connected to the thirteenth rotation element,
• wherein the third rotation element is fixedly connected to the fourth rotation element and the eighth rotation element,
• wherein the fifth rotation element is fixedly connected to the seventh rotation element, and selectively connectable to a transmission housing,
• wherein the sixth rotation element is fixedly connected to the tenth rotation element, and selectively connectable to the transmission housing,
• wherein the eleventh rotation element is fixedly connected to the fifteenth rotation element,
• wherein the ninth rotation element is selectively connectable to the first rotation element and the second rotation element,
• wherein the eleventh rotation element is selectively connectable to the thirteenth rotation element, and
• wherein the twelfth rotation element is selectively connectable to the transmission housing.