Range transmission of a motor vehicle

A range-change transmission (1) of a motor vehicle, the range-change transmission comprising:

• a multi-stage main transmission (HG),
• a splitter group (GV) connected upstream from the main transmission, and
• a range group (GP) connected downstream from the main transmission,
• the main transmission (HG) being of a planetary design and comprising an input-side simple planetary gearset (PS2) and an output-side simple planetary gearset (PS3) arranged axially adjacent to one another such that the input-side simple planetary gearset (PS2) being arranged on an input side of the main transmission and the output-side simple planetary gearset (PS3) being arranged on an output side of the main transmission,
• each of the input-side and the output-side simple planetary gearsets having a respective sun gear (10, 15), a respective ring gear (13, 18), and a respective planetary carrier (11, 16) that supports a plurality of gearwheels (12, 17),
• the ring gear (13) of the input-side simple planetary gearset (PS2) being connected, in a rotationally fixed manner, to an input shaft (9) of the main transmission (HG),
• the planetary carrier (11) of the input-side simple planetary gearset (PS2) being connected, in a rotationally fixed manner via an intermediate shaft (14), to the sun gear (15) of the output-side simple planetary gearset (PS3),
• the sun gear (10) of the input-side simple planetary gearset (PS2) being either selectively lockable, via a dual shifting element (C2) that is arranged close to the splitter group, to a housing or connected, in a rotationally fixed manner, to the intermediate shaft (14),
• the planetary carrier (16) of the output-side planetary gearset (PS3) being either selectively lockable, via two single shifting elements (CRa, Crb), to the housing or connected, in a rotationally fixed manner, to an output shaft (19) of the main transmission (HG), and
• the ring gear (18) of the output-side planetary gearset (PS3) being either selectively lockable, via a dual shifting element (C3) arranged farther away from the splitter group, to the housing or connected, in a rotationally fixed manner, to the output shaft (19) of the main transmission (HG).

A range-change transmission (1) of a motor vehicle, the range-change transmission comprising:

• a multi-stage main transmission (HG);
• a splitter group (GV) being connected to an input shaft of the range-change transmission, the splitter group having a drive output that is connected to the main transmission on an input-side of the main transmission;
• a range group (GP) has a drive input that is connected to an output shaft of the range-change transmission;
• the main transmission (HG) being of a planetary design and comprising first and second simple planetary gearsets (PS2, PS3) axially arranged such that the first simple planetary gearset is on the input-side of the main transmission and the second simple planetary gearset is on an output-side of the main transmission, each of the first and the second simple planetary gearsets comprising a sun gear, a ring gear and a planetary carrier which supports a plurality of planet gears;
• the ring gear (13) of the first simple planetary gearset (PS2) being continuously connected to an input shaft (9) of the main transmission (HG);
• the planetary carrier (11) of the first simple planetary gearset (PS2) being continuously connected, via an intermediate shaft (14), to the sun gear (15) of the second simple planetary gearset (PS3);
• a first dual shifting element being arranged on the input-side of the main transmission, the sun gear (10) of the first simple planetary gearset (PS2) is, via the first dual shifting element, selectively connectable to either a housing or the intermediate shaft so as to prevent relative rotation between the sun gear (10) of the first simple planetary gearset (PS2) and the respective one of the housing and the intermediate shaft;
• the planetary carrier (16) of the second simple planetary gearset (PS3) being selectively connectable to either the housing or the output shaft of the main transmission by engagement and disengagement first and second single shifting elements (CRa, CRb), the planetary carrier (16) of the second simple planetary gearset (PS3) is connected to the housing so as to prevent relative rotation therebetween, when the first single shifting element is engaged and the second single shifting element is disengaged, and the planetary carrier (16) of the second simple planetary gearset (PS3) is connected to the output shaft of the main transmission so as to prevent relative rotation therebetween, when the first single shifting element is disengaged and the second single shifting element is engaged;
• and
• a second dual shifting element (C3) being arranged on the output-side of the main transmission, the ring gear (18) of the second simple planetary gearset (PS3) being selectively connectable, via the second dual shifting element, to either the housing or the output shaft (19) of the main transmission (HG) so as to prevent relative rotation between the ring gear (18) of the second simple planetary gearset (PS3) and the respective one of the housing and the output shaft (19) of the main transmission (HG).