Planetary gear train of automatic transmission for vehicles

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

• an input shaft receiving torque of the engine;
• an output shaft outputting 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;
• and
• a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements,
• wherein the input shaft is directly connected with the eleventh rotation element,
• the output shaft is directly connected with the eighth rotation element,
• the first rotation element is selectively connected with a transmission housing,
• the second rotation element is directly connected with the sixth rotation element and the seventh rotation element,
• the third rotation element is directly connected with the fifth rotation element and selectively connected with the transmission housing,
• the fourth rotation element is selectively connected with the transmission housing,
• the ninth rotation element is selectively connected with the transmission housing, and
• the eleventh rotation element is selectively connected with the fourth rotation element or the fifth rotation element.