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A technology for transmissions and motor vehicles, applied in the field of drive trains, can solve the problems of small axial structure length and the like
Inactive Publication Date: 2019-06-18
ZF FRIEDRICHSHAFEN AG
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Problems solved by technology
The axial structural length of such transmissions is kept as small as possible, since the available structural space in the vehicle between the drive motor and the body or chassis is limited
Method used
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[0030] specific implementation plan
[0031] figure 1 A schematic diagram of a transmission G according to the invention is shown. The transmission G has an input shaft GW1 , an output shaft GW2 , a first planetary gear set 1 , a second planetary gear set 2 , a third planetary gear set 3 and a fourth planetary gear set 4 . The fourth planetary gear set 4 is arranged radially within the second planetary gear set 2 . The planetary gear sets 1, 2, 3, and 4 are all constructed as negative planetary gear sets.
[0032] Transmission G's figure 1 The left side facing transmission G has access to figure 1The end side of the interface of the drive unit outside the transmission is not shown. The third planetary gear set 3 has the shortest axial spacing of the fourth planetary gear set 1 , 2 , 3 , 4 relative to the end side, while the first planetary gear set 1 has the fourth planetary gear set 1 , 2 , 3, 4 relative to the maximum axial spacing of the end side. The second and four...
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Abstract
The invention relates to a transmission (G) for a motor vehicle, comprising a drive train oriented transversely to the direction of travel of the motor vehicle, the transmission (G) comprising at least two gear-forming planetary gear sets (1, 2), at least one brake (B) and two clutches (C, E), wherein the first clutch (C) is connected with a first element (11) of the first planetary gear set (1),the second clutch (E) is connected to at least one element (12, 32) of the second planetary gear set (2), and the brake (B) is connected with a second element (31) of the first planetary gear set (1).The two clutches (C, E) are axially arranged between the first and second planetary gear sets (1, 2), the second clutch (E) being arranged axially directly adjacent to the second planetary gear set (2), and the first planetary gear set (1), out of all of the gear-forming planetary gear sets (1, 2, 3, 4) of the transmission (G), has the largest axial distance from the front side of the transmission (G), that has an interface for connecting the transmission (G) to a drive unit (VM) on the outside of the transmission. The two clutches (C, E) are arranged axially directly adjacent to each other,and the brake (B) is arranged, at least in sections, radially outside the second clutch (E), The invention also relates to a drive train for a motor vehicle comprising such a transmission (G).
Description
technical field [0001] The invention relates to a transmission of a motor vehicle and a drive train of a motor vehicle with such a transmission. A transmission here refers in particular to a multi-gear transmission, in which a plurality of gears, ie fixed transmission ratios between the input shaft and the output shaft of the transmission, can be shifted preferably automatically via shift elements. The switching element is here, for example, a clutch or a brake. Such transmissions are used in particular in motor vehicles in order to suitably adapt the rotational speed and torque output characteristics of the drive unit to the driving resistance of the vehicle. Background technique [0002] The applicant's patent application DE 10 2005 014 592 A1 shows numerous variants of a multi-speed transmission for a vehicle with a drive motor mounted transversely to the direction of travel and shaft-parallel drive and output. The overall axial length of such transmissions is kept as s...
Claims
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Application Information
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