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A 5at automatic transmission transmission system suitable for medium and small cars

A technology of automatic transmission and transmission system, applied in the direction of transmission box, transmission device, transmission device parts, etc., can solve the problems of low transmission efficiency, high processing cost, difficult layout, etc., achieve stable power transmission, reduce radial size, Good shifting stability

Active Publication Date: 2016-07-06
黄山市开发投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with fixed shaft gear transmission, its disadvantages are: complex structure, difficult manufacture and installation; and the transmission efficiency of hydraulic automatic transmission is much lower than that of manual transmission.
However, because its structure adopts fixed shaft gear transmission, compared with the hydraulic automatic transmission, the radial dimension of the dual clutch automatic transmission is relatively large, so it is relatively difficult to arrange it on the car.
And because the dual-clutch automatic transmission is developed from the parallel-shaft manual transmission, the number of gears used is relatively large, so the processing cost will be higher

Method used

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  • A 5at automatic transmission transmission system suitable for medium and small cars
  • A 5at automatic transmission transmission system suitable for medium and small cars

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Embodiment

[0022] The 5AT automatic transmission realizes transmission gear shift through the separation and combination of the clutch group (C1, C2, C3, C4) and the brake group (B1, B2). The power of the engine is transmitted to the input shaft (Ⅰ), which is connected to the clutch group, and then passes through the 2K-H planetary gear transmission group and all levels of bevel gear groups, and then transmits the power to the output shaft (Ⅷ) through the main reduction gear group , is finally output by the wheels (15), thereby completing the power transmission of the automatic transmission.

[0023] Taking the actual development of a certain type of car as an example, the number of selected gears is 5, the transmission ratios of each gear are 13.04, 8.50, 6.84, 4.71, 3.50, and the reverse gear ratio is 12.78. According to the gear calculation method, the number of teeth of each gear is calculated as shown in Table 1.

[0024] Table 1 Gear teeth table

[0025] the gear

Sun...

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Abstract

A 5AT (automatic transmission) drive system suitable for small and medium-sized automobiles achieves five forward gears and a reverse gear by combining a planetary gear set, three bevel gear sets and a plurality of clutches with brakes together. A gear drive form adopted by the automatic transmission drive system is a mode of series combination of planetary gear drive and dead axle gear drive and has the advantages of the two, power transmission efficiency and working stability are improved, and fuel consumption is reduced. Besides, the automatic transmission drive system has more speed ratios, and power performance and economy of the small and medium-sized automobiles are improved.

Description

technical field [0001] The invention relates to a 5-speed automatic transmission suitable for small and medium-sized automobiles, and more specifically relates to a 5AT automatic transmission transmission system. Background technique [0002] There are four common types of automotive automatic transmissions: hydraulic automatic transmission (AT), mechanical continuously variable automatic transmission (CVT), electronically controlled mechanical automatic transmission (AMT), and dual clutch automatic transmission (DCT). The AT automatic transmission is commonly used in automobiles, and its gear transmission form is mainly planetary gear transmission, and the power is transmitted in the form of two or more rows of planetary gear trains in series transmission. Compared with fixed shaft gear transmission, planetary gear transmission has a series of unique advantages, namely: planetary transmission is a kind of constant mesh transmission, which is especially beneficial to realize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H37/08F16H57/02F16H57/08
Inventor 陈奇冯关华陈卫东冯永恺尹剑波何李婷金鑫刘拂晓
Owner 黄山市开发投资集团有限公司
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