Shifting device for a motor vehicle transmission
A technology of vehicles and gear shifting devices, which is applied in transmission devices, gear transmission devices, transmission device control, etc., can solve problems such as high power loss, and achieve the effect of increasing torque transmission capacity
Active Publication Date: 2017-11-21
HOERBIGER ANTRIEBSTECHN HLDG
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- Description
- Claims
- Application Information
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Problems solved by technology
[0005] However, especially at high transmission rotational speeds, it has been found that the drag torque does not drop to the expected extent but still leads to undesirably large power losses in the motor vehicle transmission
Method used
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Embodiment Construction
[0049] figure 1 An electrohydraulic actuated, fully automatic stepped transmission 10 for a motor vehicle is shown comprising a torque converter 12 , four planetary transmissions or planetary gearsets 14 and a schematically shown transmission housing 16 . In addition, a drive shaft 18 , a driven shaft 20 and a plurality of transmission shafts are provided, the planet carrier is also referred to as a transmission shaft in the following content. The propeller shafts are assigned to the respective planetary gear sets 14 and arranged coaxially with each other.
[0050] The stepped transmission 10 further comprises shifting devices 26, 28, which can be applied to hydraulic pressure and which can couple the transmission shaft to a further transmission shaft or to the transmission housing 16, or connect the transmission shaft to the further transmission shaft. Or the transmission housing 16 is separated.
[0051] The shifting device 26 coupling the propeller shaft to the transmissi...
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The invention relates to a shifting device (26, 28) for a motor vehicle transmission, comprising a first coupling component (30), a second coupling component (32), an inner friction ring (34), an outer friction ring (38), and an intermediate friction ring (42), wherein the inner friction ring and the outer friction ring are connected to the first coupling component for joint rotation with and for axial displacement with respect to the first coupling component. A friction cone (44) extends between the conical surfaces (36, 40) of the inner friction ring (34) and outer friction ring (38), the coupling components (30, 32) being decoupled in the rotation direction in an axial starting position of the outer friction ring (38) and being coupled in a frictional fit in the rotation direction in an axial frictional fit position of the outer friction ring. The intermediate friction ring has a C-shaped ring cross section extending peripherally in the circumferential direction, comprising a radially outer linear cone limb which forms the friction cone (44) and comprises two substantially parallel conical friction surfaces (48), and comprising a radially inner linear axial limb (50) which is integrally connected to the cone limb by a radial web (52).
Description
technical field [0001] The invention relates to a shifting device for a motor vehicle transmission, especially for a fully automatic stepped transmission, comprising: a first coupling part; a second coupling part, which can rotate around a transmission axis; an inner friction ring, which is has a tapered surface on the outer surface and is connected to the first coupling part for joint rotation with the first coupling part and axial movement relative to the first coupling part; an outer friction ring with a tapered surface on the radially inner surface shaped surface and connected to the first coupling part for joint rotation with the first coupling part and axial movement relative to the first coupling part; and an intermediate friction ring which includes a friction cone and is connected to the second coupling part for Jointly rotating with the second coupling part and moving axially relative to the second coupling part, the friction cone extends between the tapered surface ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16D23/06F16H59/02
CPCF16D23/06F16H59/02F16D13/32F16D23/04F16D25/0632F16D2023/0681F16D2023/0693F16D2300/0214F16H3/66F16H57/0432F16H57/0473F16H63/30F16H63/3026F16H2063/3093F16H2200/0065F16H2200/2012F16H2200/2046F16H2200/2064F16H2200/2094F16D13/34F16D2300/06F16H61/0403
Inventor 尤尔根·宾德尔萨米·厄兹克安彼得·埃科特勒安德列亚斯·登普夫勒菲利普·明克维茨托拜厄斯·舒勒克里斯多夫·特劳特
Owner HOERBIGER ANTRIEBSTECHN HLDG