Multi-stage automatic transmission

An automatic transmission for a motor vehicle, comprising:

• a housing (GG);
• eight rotatable shafts (1 to 8) including a drive shaft (AN) and an output shaft (AB);
• four individual planetary gear sets (RS1, RS2, RS3, RS4), each planetary gear set comprising a first element (SO1, SO2, SO3, SO4), a second element (ST1, ST2, ST3, ST4), and a third element (HO1, HO2, HO3, HO4);
• seven shift elements (B1, B2, B3, C1, C2, C3, C4), whereas three of the shift elements are designed as brakes (B1, B2, B3) and four of the shift elements are designed as clutches (C1, C2, C3, C4), and wherein selective engaging of the shift elements provides different transmission ratio relationships between the drive shaft (AN) and output shaft (AB) for shifting of a plurality of forward gears and one reverse gear;
• the first element (SO2) of the second planetary gear set (RS2) forms the first shaft (1) designed as the drive shaft (AN) of the transmission;
• the second element (ST3) of the third planetary gear set (RS3) forms the second shaft (2) designed as the output shaft (AB) of the transmission;
• the second element (ST1) of the first planetary gear set (RS1) forms the third shaft (3);
• the first element (SO1) of the first planetary gear set (RS1) forms the fourth shaft (4);
• the third element (HO3) of the third planetary gear set (RS3) forms the fifth shaft (5);
• as the sixth shaft (6), the third element (HO1) of the first planetary gear set (RS1) and the first element (SO3) of the third planetary gear set (RS3) are constantly connected to each other;
• the first brake (B1) is arranged in a power flow between the third shaft (3) and the housing (GG);
• the second brake (B2) is arranged in a power flow between the fourth shaft (4) and the housing (GG);
• the third brake (B3) is arranged in a power flow between the fifth shaft (5) and the housing (GG);
• the first clutch (C1) is constantly connected to the seventh shaft (7);
• the second clutch (C2) is arranged in a power flow between the first and third shafts (1, 3);
• the third clutch (C3) is constantly connected to the eighth shaft (8);
• the fourth clutch is arranged in a power flow between the first and the fourth shafts (1,4);
• the second element (ST2) of the second planetary gear set (RS2) is constantly connected to the sixth shaft (6);
• the third element (HO2) of the second planetary gear set (RS2) forms the seventh shaft (7);
• and
• the first clutch (C1) is arranged in a power flow between the third and seventh shafts (3, 7).