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Automatic transmission

A technology of automatic transmission and gearbox, applied in the direction of vehicle gearbox, transmission element, transmission device, etc., can solve problems such as cost increase

Inactive Publication Date: 2006-06-14
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In low-speed rotation and large output torque, for example, in automobiles equipped with diesel engines, although it has been realized to replace the torque converter and gradually connect the starting clutch to start the automobile, the automatic transmission described in Patent Document 2, Since it is rotationally driven through the torque converter, transmission inefficiency due to transmission loss of flow cannot be avoided
Moreover, since it is necessary to change the single planetary gear in the automatic transmission, that is, when it is desired to adapt to the change of a gasoline engine with a high speed and a diesel engine with a low speed and high torque, many parts must be replaced, which leads to cost. Increase

Method used

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Embodiment Construction

[0043] Hereinafter, embodiments of the automatic transmission according to the present invention will be described based on the drawings. In FIG. 1 , 10 is an automatic transmission according to the present invention, for example, for changing the speed of the rotation of a drive member 11 to which the output rotation of a diesel engine of an automobile is transmitted and transmitting it to drive wheels. The automatic transmission 10 is composed of the following parts: in the gearbox 12 installed in the vehicle body, the drive member 11 supported on the common axis 13, the planetary gear 19 for speed-up, the single planetary gear 15, the compound planetary gear 16, the output Shaft 17, starting clutch C-S, clutches C-1 through C-3, and brakes B-1, B-2.

[0044] The planetary gear 19 for speed-up is composed of the following components: the sun gear S4 fixed on the gearbox 12, the planetary gear carrier C4 that can be connected to the driving part 11 through the starting clutch...

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Abstract

The output rotation of the engine is transmitted to the planetary gear for speed-up through the starting clutch, and then transmitted to the input shaft after speed-up, and the rotation of the input shaft is shifted through the single-type planetary gear or the double-type planetary gear, thereby reducing the shared rotation speed of each part of the automatic transmission. moment and reduce the size of each part and the capacity of each friction fit element. When the vehicle is started, the driving member to which the output rotation of the engine is transmitted is connected to the planetary carrier of the speed-up planetary gear through the starting clutch. When the starting clutch is engaged, the rotation of the driving part is accelerated by the speed-up planetary gear and transmitted to the input shaft directly connected to the ring gear. The rotation transmitted to the input shaft is selectively connected or fixed by a plurality of friction fit elements through the single planetary gear and the compound planetary gear connected to the output shaft, thereby performing multi-speed transmission and transmitting to the output shaft .

Description

technical field [0001] The present invention relates to an automatic transmission that can connect elements of a single planetary gear connected to an input shaft to elements of a compound planetary gear through a clutch, and at the same time can be fixed through a brake, thereby multiplexing the rotation of the input shaft The gear is shifted and transmitted to the output shaft. Background technique [0002] Patent Document 1 discloses an automatic transmission that is provided with a single planetary gear and a compound planetary gear; the single planetary gear consists of a first ring gear connected to an input shaft, a first sun gear fixed gears, and a first planetary gear carrier that supports a pinion that meshes with the first ring gear and the first sun gear; the compound planetary gear has a second and a third sun gear that directly meshes with the second The sun gear and the long pinion meshing with the third sun gear through the intermediate pinion, the common pl...

Claims

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Application Information

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IPC IPC(8): F16H3/62F16H61/00
CPCF16H3/663F16H2200/0052F16H2200/201F16H2200/2023F16H2200/2043F16H2200/2097
Inventor 早渕正宏加藤直司糟谷悟加藤博浅井康寻
Owner AISIN AW CO LTD
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