a ravigneaux set having six shift elements namely three clutches and three brakes certain specific embodiments being expandable to form an 11 speed transmission by adding a fourth brake application_number US 201514795110 A description identical reference numerals in the figures indicate identical or analogous elements fig1 through 3 show different specific embodiments of drive groups within a transmission system according to the present invention fig4 through 8 show different specific embodiments of output groups within a transmission system according to the present invention fig9 shows purely by way of example a transmission system according to the present invention composed of one drive group according to fig1 and one output group according to fig4 those skilled in the art will understand that each of the shown drive groups in combination with each of the shown output groups results in a transmission system according to the present invention the graphic representation of each of the possible combinations may thus be dispensed with the illustration according to fig9 shall suffice as a representative example the drive group according to fig1 includes two simple planetary gear sets namely a first planetary gear set 10 and a second planetary gear set 20 first planetary gear set 10 includes a first sun gear 101 a first ring gear 102 and a first planet carrier 103 on which a set of first planet gears is rotatably mounted which mesh with first sun gear 101 on the one hand and with.