Planetary gear train of automatic transmission for vehicles

Abstract

The present invention relates to a planetary gear train of an automatic transmission for vehicles, the planetary gear train including: an input shaft configured to receive external torque; an output shaft configured to output shifted torque; a first planetary gear set, It has a first rotation element, a second rotation element and a third rotation element; a second planetary gear set having a fourth rotation element, a fifth rotation element and a sixth rotation element; a third planetary gear set having a seventh rotation elements, an eighth rotation element, and a ninth rotation element; a fourth planetary gear set having a tenth rotation element, an eleventh rotation element, and a twelfth rotation element; a fifth planetary gear set having a thirteenth rotation elements, a fourteenth rotating element and a fifteenth rotating element; a first shaft fixedly connected with the first rotating element and the input shaft; a second shaft; a third shaft; a fourth shaft; a fifth shaft; a sixth shaft; seventh axis; eighth axis; and ninth axis.

Description

Planetary gear train of automatic transmission for vehicle technical field

[0001] The present invention relates to an automatic transmission for a vehicle. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. In the field of automatic transmissions, more gear shifts are a useful technique for improving the fuel consumption and drivability of a vehicle. technique. In the so-called trend of engine downsizing, the availability of more gears helps to improve the performance and efficiency of the vehicle

[0004] speed, and better gear linearity can improve the driving of the vehicle by improving the uniformity of acceleration before and after shifting, etc. sex.

[0005] In order to obtain more gears of an automatic transmission, the number of parts is usually increased, which increases the Production cost, weight and / or power flow efficiency degradation. I...

Examples

Embodiment Construction

[0040] The following description is merely exemplary in nature and is not intended to limit the invention, application, or uses. It should be understood that

[0041] In the following description, the names of the components are divided into first, second, etc. in order to divide the names, because the names of the components

[0042] Furthermore, as used herein, a description of "directly" connected or interconnected elements includes fixedly connected elements, i.e.

[0044] Referring to FIG. 1, the planetary gear train includes: first, second, third, fourth and fifth rows arranged on the same axis

[0046] According to an exemplary embodiment of the present invention, the first, second and third, fourth and fifth rows from the engine side

[0055] The nine axes TM1 to TM9 are arranged as follows:

[0056] Each of the nine shafts TM1 to TM9 may be a link between the input and output shafts and the planetary gear sets PG1, PG2,

[0061] The fifth shaft TM5 is connected to the fif...

Planetary gear train of automatic transmission for vehicle technical field

[0001] The present invention relates to an automatic transmission for a vehicle. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. In the field of automatic transmissions, more gear shifts are a useful technique for improving the fuel consumption and drivability of a vehicle. technique. In the so-called trend of engine downsizing, the availability of more gears helps to improve the performance and efficiency of the vehicle

[0004] speed, and better gear linearity can improve the driving of the vehicle by improving the uniformity of acceleration before and after shifting, etc. sex.

[0005] In order to obtain more gears of an automatic transmission, the number of parts is usually increased, which increases the Production cost, weight and / or power flow efficiency degradation. I...

Examples

Embodiment Construction

[0040] The following description is merely exemplary in nature and is not intended to limit the invention, application, or uses. It should be understood that

[0041] In the following description, the names of the components are divided into first, second, etc. in order to divide the names, because the names of the components

[0042] Furthermore, as used herein, a description of "directly" connected or interconnected elements includes fixedly connected elements, i.e.

[0044] Referring to FIG. 1, the planetary gear train includes: first, second, third, fourth and fifth rows arranged on the same axis

[0046] According to an exemplary embodiment of the present invention, the first, second and third, fourth and fifth rows from the engine side

[0055] The nine axes TM1 to TM9 are arranged as follows:

[0056] Each of the nine shafts TM1 to TM9 may be a link between the input and output shafts and the planetary gear sets PG1, PG2,

[0061] The fifth shaft TM5 is connected to the fif...

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