Transmission with disengageable variator
First Claim
1. A transmission for propelling a motor vehicle, the transmission comprising:
- a drivable, multi-gear main transmission (2);
a range group (4) connected downstream from the main transmission (2), and the range group (4) comprising an input shaft (22) and an epicyclic gear system (3);
the epicyclic gear system (3) comprising elements in the form at least of a central gearwheel (5, 7) and a planetary carrier (9) supporting a plurality of planetary gearwheels (19) meshing with the central gearwheel (5, 7);
the range group (4) also comprising a variator (6); and
the input shaft (22) of the range group (4) comprising a first connection for driving a first element (5, 7, 9) of the epicyclic gear system (3); and
the input shaft (22) of the range group (4) also comprising a second connection for driving another element (5, 7, 9) of the epicyclic gear system (3) such that, when the second connection is engaged, the input shaft (22) of the range group (4) drives an input of the variator (6) and a drive output (12) of the variator (6) drives the second element of the epicyclic gear system.
1 Assignment
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Accused Products
Abstract
A transmission, preferably for driving a motor vehicle, includes a multi-gear main transmission and a range group, that is connected downstream from the main transmission and comprises an input shaft and an epicyclic gear system. The epicyclic gear system comprises elements in the form at least of a central gearwheel and a planetary carrier. Furthermore, the transmission comprises a first connection for driving one of the elements of the epicyclic gear system by way of the input shaft of the range group and a variator, as well as a second connection that can be engaged with the first connection for driving a further element of the elements of the epicyclic gear system. When the second connection is engaged, the input shaft of the range group drives the variator and a drive output of the variator drives the further element of the epicyclic gear system.
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Citations
12 Claims
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1. A transmission for propelling a motor vehicle, the transmission comprising:
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a drivable, multi-gear main transmission (2); a range group (4) connected downstream from the main transmission (2), and the range group (4) comprising an input shaft (22) and an epicyclic gear system (3); the epicyclic gear system (3) comprising elements in the form at least of a central gearwheel (5, 7) and a planetary carrier (9) supporting a plurality of planetary gearwheels (19) meshing with the central gearwheel (5, 7); the range group (4) also comprising a variator (6); and the input shaft (22) of the range group (4) comprising a first connection for driving a first element (5, 7, 9) of the epicyclic gear system (3); and the input shaft (22) of the range group (4) also comprising a second connection for driving another element (5, 7, 9) of the epicyclic gear system (3) such that, when the second connection is engaged, the input shaft (22) of the range group (4) drives an input of the variator (6) and a drive output (12) of the variator (6) drives the second element of the epicyclic gear system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A transmission for propelling a motor vehicle, the transmission comprising:
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a drivable, multi-gear main transmission; a range group connected downstream from the main transmission (2), and the range group comprising; only a single range group input shaft, an epicyclic gear system driving an output shaft of the main transmission, and the epicyclic gear system comprising elements in the form at least of a central gearwheel and a planetary carrier supporting a plurality of planetary gearwheels meshing with the central gearwheel; and a variator; the single input shaft of the range group comprising a first connection for driving a first one of the elements of the epicyclic gear system; and the input shaft of the range group also comprising a releasable second connection for driving another element of the elements of the epicyclic gear system such that, when the second connection is engaged, the single input shaft of the range group drives the variator and a drive output of the variator drives the another element of the epicyclic gear system; and the variator being arranged coaxially with the output shaft of the main transmission.
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Specification