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Four-planetary-line automatic transmission and vehicle

A technology of automatic transmission and planetary row, which is applied in the direction of vehicle parts, vehicle gearboxes, transmission components, etc., can solve the problems of difficult lightweight design of the box, complex structure, and unfavorable lightweight design, so as to reduce the difficulty of processing and manufacturing, Improved transmission efficiency and compact structure

Active Publication Date: 2017-12-15
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of the transmission, the friction steel teeth of the brake are finally connected to the case of the transmission. The existence of the brake undoubtedly increases the difficulty of processing and manufacturing the case; Undoubtedly, it will make it difficult to make the lightweight design of the box while ensuring the strength
[0005] In addition, in the 10R80 scheme, the Lavina structure is adopted, and a double planetary gear structure appears, which is more complicated in structure and is not conducive to lightweight design

Method used

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  • Four-planetary-line automatic transmission and vehicle
  • Four-planetary-line automatic transmission and vehicle
  • Four-planetary-line automatic transmission and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, a four-planetary automatic transmission according to an embodiment of the present invention is schematically shown, which includes an input member 6 and an output member 7, and the first planetary row 1, the second planetary row 2, the The third planetary row 3 and the fourth planetary row 4, each planetary row has a sun gear, a ring gear, a planetary carrier and a planetary gear set that cooperate with each other, and the first clutch C1, the second clutch C2, and the third clutch C3 , the fourth clutch C4, the fifth clutch C5 and the sixth clutch C6; in the same planetary row, the sun gear and the planetary gear set are externally meshed, the planetary gear set is internally meshed with the ring gear, and the planetary gear set is installed on the corresponding planetary gear through the bearing The above-mentioned six clutches can be used as multi-plate wet clutches or dog-tooth clutches. For the convenience of expression, the sun gear, ring g...

Embodiment 2

[0059] like figure 2 As shown, the four-planetary automatic transmission in this embodiment is substantially the same as that in Embodiment 1, except that the position of the sixth clutch C6 is different. In this embodiment, the sixth clutch C6 is engaged between the second ring gear 22 and the third sun gear. Between the wheels 31, that is, the second ring gear 22 is connected to the third sun gear 31 through the sixth clutch C6, and the third ring gear 32 is fixedly connected to the fourth sun gear 41; although in this embodiment, the sixth clutch C6 The setting position of is different from that of Embodiment 1, but the four-planetary automatic transmission of this embodiment shares a speed ratio conversion logic table (Table 1) with Embodiment 1, and the power under each gear of the two The transmission route diagrams are also basically the same, that is, the functions realized by the four-planetary automatic transmission in this embodiment are consistent with those reali...

Embodiment 3

[0061] like image 3 As shown, the four-planetary automatic transmission in this embodiment is substantially the same as that in Embodiment 1, except that the position of the sixth clutch C6 is different. The sixth clutch C6 in this embodiment is engaged between the third planetary carrier 33 and the fourth Between the planetary carriers 43, that is, the third planetary carrier 33 is connected to the fourth planetary carrier 43 through the sixth clutch C6, while the third ring gear 32 is fixedly connected to the fourth sun gear 41, so that when the third clutch C3 is closed , realize the overall rotation of the third planetary row 3; although in this embodiment, the setting position of the sixth clutch C6 is different from the setting position of the embodiment 1, the four-planetary automatic transmission of the present embodiment is shared with the embodiment 1 A speed ratio conversion logic table (Table 1), and the power transmission route map under each gear of the two is a...

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Abstract

The invention relates to the field of cars and discloses a four-planetary-line automatic transmission and a vehicle. The four-planetary-line automatic transmission comprises an input component, an output component, first-to-fourth planetary lines and first-to-sixth clutches. Each planetary line comprises a sun wheel, a gear ring, a planetary frame and a planetary wheel set which are matched. The first gear ring is fixed, the first sun wheel and the second sun wheel are connected, and the second gear ring is connected with the third sun wheel. The third planetary frame is connected with the fourth planetary frame, the input component is connected with the second planetary frame, and the output component is connected with the fourth planetary frame. The first planetary frame is connected with the fourth gear ring through the first clutch, the first planetary frame is connected with the fourth gear ring through the second clutch, and the second gear ring is connected with the fourth gear ring through the third clutch. The second planetary frame is connected with the fourth sun wheel through the fourth clutch, the third sun wheel is connected with the fourth sun wheel through the fifth clutch, and the third gear ring is connected with the fourth sun wheel through the sixth clutch.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a four-planetary automatic transmission and a vehicle. Background technique [0002] The gear train mechanism of the electronically controlled hydraulic transmission generally includes multiple planetary arrays, and the engine power is transmitted to the planetary gear transmission mechanism through the hydraulic torque converter for gear shifting and then output. The volume, weight, efficiency and carrying capacity of the automatic transmission are directly related to the layout of the planetary row structure. The more gears of the automatic transmission drive train, the lower the fuel consumption of the car and the better the economy. However, as the number of gears increases, the number of planetary rows and the number of operating clutches and brakes also increase, and it is even more difficult to achieve a design that satisfies the theoretical step ratio. [0003] At present, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2057/02043F16H2057/02091F16H2200/0069F16H2200/2012F16H2200/2017F16H2200/2046F16H2200/2097
Inventor 邰昌宁谢天礼马粉粉凌晓明周友刘学武张安伟
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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