Multi-stage Transmission For Vehicle
A technology for transmissions and transmission housings, applied in gear transmissions, belts/chains/gears, mechanical equipment, etc., which can solve the problem of increased cost and weight of the transmission, increased number of internal components of the transmission, lower installability and transmission efficiency, etc. problems, achieve the effect of improving fuel efficiency, improving quietness, and quiet operation
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[0012] The following description is in fact only exemplary, and is not intended to limit the application, application or use. It should be understood that in all the drawings, corresponding reference numerals indicate similar or corresponding parts and features.
[0013] reference figure 1 with figure 2 According to one form of the present invention, a multi-speed transmission of a vehicle may include: an input shaft “IN”; an output shaft “OUT”; first to fourth planetary gear devices “PG1”, “PG2”, “PG3” and “ PG4", each arranged between the input shaft "IN" and the output shaft "OUT" to transmit rotating force, each of the first to fourth planetary gear devices PG1, PG2, PG3, and PG4 has three rotating elements; and At least six shift elements (for example, clutches CL1 to CL6), which are connected to the rotation elements of the first to fourth planetary gear devices PG1 to PG4.
[0014] The first rotation element S1 of the first planetary gear device PG1 is variably connected ...
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