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Power shift type automatic transmission system

A technology of automatic shifting and power shifting, which is applied in the direction of transmission, gear transmission, transmission control, etc., can solve problems such as idleness, improve power and driving comfort, realize power shift performance, and improve power Effects on performance and fuel economy

Inactive Publication Date: 2009-08-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) When the DCT system is working, only one shaft transmits power, and the other shaft is idle;

Method used

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  • Power shift type automatic transmission system
  • Power shift type automatic transmission system
  • Power shift type automatic transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1: Transformation of the transmission of a dual-clutch automatic transmission car with four forward gears

[0051] Such as figure 2 Shown: A single planetary planetary mechanism and two brakes are added between the engine and the gearbox. One end of the input shaft 2 is connected to the crankshaft of the engine 1, and the other end is connected to the planet carrier 31 of the planetary mechanism 3 as a power input end. . The ring gear 33 and the sun gear 32 of the planetary mechanism 3 are respectively connected to the driving discs of the first clutch 51 and the second clutch 52; one end of the first brake 41 is fixed to the housing of the gearbox 18, and the other end is connected to the planetary mechanism The ring gear 33 of 3 is connected; one end of the second brake 42 is also fixed to the housing of the gearbox 18, and the other end is connected to the sun gear 32 of the planetary mechanism. The rotation of the ring gear 33 and the sun gear 32 is controlled ...

Embodiment 2

[0068] Such as image 3 Shown. Its structural arrangement is basically the same as that of Embodiment 1, except that the gearbox adds two intermediate transition shafts. One of the power transmission shafts 61 is hollowed with a forward gear 71 and a driving gear 73; the power transmission shaft 62 is hollow with a forward gear second 72, a fourth 74 driving gear 74 and power transmission. Reverse gear 78; one of the driving gear 71 on one of the power transmission shafts 61 and the third driving gear 73 respectively mesh with the driven gear 10 on one of the intermediate shafts 201; one of the driving gears on the second power transmission shaft 62 No. 73 and No. 74 of the driving gear respectively mesh with the driven gear 10 on the No. 2 of the intermediate shaft 202. The reverse gear 16 is freely sleeved on the reverse shaft 17 and is respectively connected to the power transmission shaft No. 62 of the power transmission. The gear 78 meshes with the driven reverse gear 10 on t...

Embodiment 3

[0071] Such as Figure 4 Shown. Used on the same vehicle transmission as in Example 1. The specific arrangement is to add a single planetary row planetary mechanism 3 between the engine and the gearbox and cooperate with two double-sided clutches. The planetary carrier 31 of the planetary mechanism is used as the power input end and is connected with the output shaft of the engine 1, and the ring gear 33 and the sun gear 32 of the planetary mechanism 3 are respectively used as the power output ends and are respectively connected to the driving discs of the two clutches (consisting of the housing of the double-sided clutch). One) connected. The difference from Example 1 is that two double-sided clutches are used. The two driven discs of one of the double-sided clutches 45 can be regarded as two output ends, one end of which is fixedly connected to the transmission housing 18 as a whole, and the other end is connected to one of the transmission power transmission shafts 61; One end o...

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Abstract

The invention discloses a power shifting type automatic transmission system. One end of the input shaft of the system is connected with the crankshaft of the engine, and the other end is connected with the planet carrier of the planetary mechanism; the ring gear and the sun gear of the planetary mechanism are respectively connected with one of the clutches. It is connected to the driving disc of the second clutch; one end of one of the brakes is fixed on the casing of the gearbox, and the other end is connected to the ring gear of the planetary mechanism; one end of the second brake is also fixed on the casing of the gearbox, The other end is connected to the sun gear of the planetary mechanism; the driven discs of one of the clutches and the second of the clutch are respectively connected with one of the power transmission shafts of the gearbox and the second of the power transmission shafts, respectively, through one of the power transmission shafts and the power transmission shaft. The gear of the second shaft is connected with the output shaft. The transmission can realize (m+n+m*n) gear numbers by (m+n) pairs of gears through the cooperative use of the planetary mechanism, the clutch and the brake, and the automatic transmission can also realize power shifting by pre-engaging gears.

Description

Technical field [0001] The invention relates to an automatic transmission system in a mechanical transmission system, in particular to a power shift type automatic transmission system. technical background [0002] The economy, power, and driving comfort of a vehicle not only depend on the engine, but to a large extent depend on the transmission and the matching of the transmission and the engine. The earliest manual transmission (MT), through the clutch and manual shift fork to achieve the shift of gears, this kind of transmission has the advantages of simple structure, compact appearance, high transmission efficiency, high reliability, low cost, etc., and the application is relatively more. widely. However, the clutch must be disconnected during the shifting process of the vehicle, resulting in power interruption, which affects the vehicle's dynamic performance and driving comfort. A hydraulic automatic transmission (AT) composed of a torque converter and a planetary gear mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/10F16H61/00F16H59/04
Inventor 罗玉涛
Owner SOUTH CHINA UNIV OF TECH
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