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Drive system for automatic transmission

A technology for automatic transmissions and drive trains, applied to transmission components, transmission devices, vehicle gearboxes, etc., can solve problems such as poor durability, damage to rotating components, and increased weight of the overall size of the vehicle

Inactive Publication Date: 2007-05-30
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, in the power train of a conventional automatic transmission, since the number or rotation of the first and second planetary gear trains 110, 120 is relatively large, there is a rotation of the first and second planetary gear trains 110, 120 Components are easily damaged by friction, and thus their durability is poor
[0025] In addition, since the number of fixed elements such as clutches and brakes increases with the number of gears, the overall size of the drive train of the automatic transmission and the weight of the vehicle increase accordingly

Method used

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  • Drive system for automatic transmission
  • Drive system for automatic transmission
  • Drive system for automatic transmission

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Embodiment Construction

[0042] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0043] 3 is a symbolic diagram illustrating a drive train structure of a six-speed and seven-speed automatic transmission of a rear-wheel drive vehicle according to the present invention.

[0044] The drive train of the six-speed and seven-speed automatic transmission of a rear-wheel drive vehicle according to the present invention shown in FIG. 3 includes a single planetary gear train 10 connected to the input shaft 2, which receives the power generated by the engine through the input shaft 2, The power is converted into an appropriate rotational force and output: the compound planetary gear train 20 receives power through the input shaft 2 or the single planetary gear train 10, converts the power into an appropriate rotational force, and outputs it to the output shaft 4; The fixed element stops each rotating element of the compound pla...

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Abstract

The invention provides a drive system for gear 6 and gear 7 automatic transmission in a rear-wheel drive car, including: a single planetary gear train; a complex planetary gear train provided with step pinions thereon; three clutches; two brakes; and a one-way clutch, to realize gear 6 and gear 7 shift. Thereby, the drive system of the invention is used for realizing gear 6 and gear 7 automatic shift, the structure is more compact, and the velocity ratio or transmission ratio of the complex planetary gear is only 1, with the virtue of long use.

Description

technical field [0001] The present invention relates to the power train of six-speed and seven-speed automatic transmissions of rear-wheel drive vehicles, and more particularly relates to the power train of six-speed and seven-speed automatic transmissions of rear-wheel drive vehicles capable of realizing six and seven gears. Six-speed and seven-speed transmissions are realized by including a single planetary gear train, a compound planetary gear train, three clutches, two brakes, and a one-way clutch. The compound planetary gear train is equipped with a step pinion gear). Background technique [0002] In a nutshell, the drive train of an automatic transmission is a device that converts the power generated by the engine into a multi-level force through hydraulic pressure, etc., so as to obtain an appropriate rotational force according to the driving situation. [0003] The drive train of an automatic transmission includes a planetary gear train and stationary elements such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44
CPCF16H2200/2023F16H2200/2097F16H2200/2046F16H2200/2043F16H2200/2007F16H2200/0052F16H3/663F16H2200/0056F16H3/44
Inventor 林箕彬
Owner HYUNDAI MOTOR CO LTD
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