Vehicular automatic transmission

一种自动变速器、车辆的技术，应用在车辆变速箱、车辆部件、传动箱等方向，能够解决不能用于使用车辆等问题，达到减少停工的风险、减小长度的效果

Inactive Publication Date: 2007-07-04
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the rear housing and related parts can be assembled into one assembly (subassembly, subassembly), this assembly cannot be used in vehicles of different constructions using the same type of automatic transmission
At this point, conventional vehicle transmissions have room for further improvement

Method used

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  • Vehicular automatic transmission
  • Vehicular automatic transmission
  • Vehicular automatic transmission

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Referring first to the schematic diagram of FIG. 1 , there is shown a drive system 10 for a vehicle, which is suitable for a FF vehicle (front engine front drive vehicle) and is equipped with a driving force source in the form of an internal combustion engine 12 . The output of the internal combustion engine 12 is transmitted to the left and right sides of the vehicle through a fluid-operated power transmission in the form of a torque converter 14, an automatic transmission 16, a differential gear arrangement (not shown), and a pair of axles (not shown). drive wheel. The automatic transmission 16 is an automatic transmission for a vehicle constructed according to a preferred embodiment of the present invention.

[0023]The torque converter 14 includes a pump impeller 14p connected to the crankshaft of the internal combustion engine 12, ...

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Abstract

A vehicular automatic transmission 16 including a first planetary gear device 22 and a first set of frictional coupling elements 50, which can be supported by a pump housing 42 via first and second retainer rings 79, 64, at predetermined axial positions within the pump housing, during assembling of the automatic transmission. The first retainer ring is fixed to a radially inner spline-fitting part 48 of a cylindrical extending portion 42a of the pump housing, while the second retainer ring is fitted in a first circumferential groove 58 formed in a ring gear R1 of the first planetary gear device and a second circumferential groove 62 formed in the inner circumferential surface of a splined cylindrical portion 60a of a first hub 60 splined to the outer circumferential surface of the ring gear and the radially inner portions of the first set of frictional coupling elements. The automatic transmission is manufactured by assembling a subassembly with respect to a stationary cylindrical housing 40 to which the pump housing is fixed. The subassembly includes the pump housing provided with an oil pump 94, first planetary gear device and first set of frictional coupling elements.

Description

[0001] This application is based on Japanese Patent Application No. 2005-379505 filed on December 28, 2005, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention generally relates to an automatic transmission for a vehicle, and more particularly, the present invention relates to a structural improvement of the automatic transmission for a vehicle which allows an improvement in assembly efficiency of the automatic transmission for a vehicle. Background technique [0003] There is an increasing demand for improving the assembly efficiency of automatic transmissions for vehicles in order to meet the increasing manufacture of motor vehicles in recent years. In the traditional assembly method of the automatic transmission for vehicles, all the parts of the automatic transmission are assembled on the main assembly line, so the length of the required main line tends to increase with the increase of the required assembly ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H47/00F16H57/02F16H3/62F16H3/66
CPCF16H2200/0052F16H2057/005F16H2057/0056F16H2200/2043F16H2200/2007F16H2200/2023F16H57/08F16H3/663F16H3/44F16H3/62
Inventor 大西博文安田勇治宫崎光史村上诚
Owner TOYOTA JIDOSHA KK
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