Automatic gearbox without synchronizer and not interrupt power shifting gear

A technology of automatic transmission and power shifting, which is applied in the direction of transmission, gear transmission, belt/chain/gear, etc., can solve the problems of difficult clutch arrangement, complicated transmission structure, high technical difficulty, etc., so as to shorten the shifting. Time, ease of implementation, effect of improving shift quality

Inactive Publication Date: 2007-10-10
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical solution of this double clutch is completely different from the existing manual transmission technology, and the technical difficulty of development is high, which also makes it difficult to arrange the clutch in the effective space behind the engine.
[0010] 2. The gearboxes are all parallel double gearboxes. The gearbox has two input shafts and two output shafts. One of the two input shafts is a solid shaft and the other is a hollow shaft. The two are nested together
The synchronizer is a component with a complex internal structure and high cost in the gearbox.

Method used

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  • Automatic gearbox without synchronizer and not interrupt power shifting gear
  • Automatic gearbox without synchronizer and not interrupt power shifting gear
  • Automatic gearbox without synchronizer and not interrupt power shifting gear

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Embodiment 1

[0026] Embodiment 1: The technical scheme that the present invention proposes obtains by improving on the basis of the automatic manual transmission of an automobile. Figure 1 is a schematic diagram of an automotive automatic manual transmission.

[0027] In this AMT system, the gearbox is a two-shaft five-speed gearbox, and automatic shifting can be realized through the control of the selection, shift actuator and clutch actuator.

[0028] Fig. 2 is a schematic diagram of the principle of implementing the technical solution of the present invention by improving the AMT system in Fig. 1 . Compared with Fig. 1, there is no change in the car main clutch and its operating mechanism. The gearbox shift control mechanism is also similar to AMT and can basically be shared. Inside the gearbox, all shift synchronizers were removed, easy-to-engage sleeves were used for shifting, and a double-sided shift clutch was added. The fixed disc A of the shift clutch is fixed on the first shaf...

Embodiment 2

[0043] Embodiment 2: The gearbox is a three-shaft five-speed gearbox:

[0044] Inside the gearbox, an easy-to-engage sleeve is used to shift gears, and a double-sided shift clutch is added. The fixed disc (A) of the shift clutch is fixed on the intermediate shaft of the gearbox, and there are two floating discs (B) on both sides of the fixed disc. ) and (C), the floating disc (B) and the cylindrical spur gear (B1) are connected as a whole, and the two are vacantly sleeved on the intermediate shaft of the gearbox, and the gear (B1) meshes with the gear (B2) to form an upshift gear pair, The gear (B2) is fixed on the second shaft of the gearbox;

[0045] The floating disc (C) is connected with the cylindrical spur gear (C1) as a whole, and the two are sleeved on the intermediate shaft of the gearbox. The gear (C1) meshes with the gear (C2) to form a downshift gear pair, and the gear (C2) is fixed on the on the second shaft of the gearbox.

[0046] The embodiment shown in Fig. ...

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Abstract

An automatic gearbox of synchronizer-free and gearshift without power interruption type is prepared for applying two-shaft mode with five-gear variable speed, adding double-surface gearshift clutch, fixing fixed plate of gearshift clutch on a shaft of gearbox and arranging two float plates at two sides of said fixed plate.

Description

technical field [0001] The invention relates to an automatic gearbox without a synchronizer and uninterrupted power shift, which belongs to the field of transportation (vehicle engineering). Background technique [0002] A serious disadvantage of manual transmission shifting is that it is an interrupted power shift, so shift shocks are unavoidable. Automatic manual transmission (AMT), which realizes automatic operation on the basis of manual transmission, has the advantages of good production inheritance and low cost, but it also has power interruption and shift shock, and it is difficult to improve shift comfort. [0003] The dual-clutch parallel gearbox-type automatic transmission system can realize uninterrupted power shifting, so as to solve the problem of shifting comfort very well. [0004] The dual-clutch automatic transmission (DCT) developed by BorgWarner Corporation of the United States uses two independent wet multi-disc clutches and dual gearboxes arranged in pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/08
Inventor 陈宏伟宋健
Owner BEIJING JIAOTONG UNIV
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