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Gear selecting and shifting integrated device based on commercial vehicle AMT transmission assembly

A technology for integrating devices and transmissions, applied in mechanical control devices, transmission device control, instruments, etc., can solve the problems of high cost, high requirements for installation and layout space, complex structure, etc., and achieves reduction of production costs and simple mechanism layout. , the effect of compact layout

Inactive Publication Date: 2021-02-26
RUILI GROUP RUIAN AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the shift mechanisms of automatic mechanical transmissions (AMT) are hydraulic and pneumatic to realize gear selec

Method used

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  • Gear selecting and shifting integrated device based on commercial vehicle AMT transmission assembly
  • Gear selecting and shifting integrated device based on commercial vehicle AMT transmission assembly
  • Gear selecting and shifting integrated device based on commercial vehicle AMT transmission assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0057] Take the structural diagram of a 12-speed AMT transmission as an example, such as Figure 7 As shown, the 12-speed AMT transmission is composed of a front half-speed auxiliary transmission 43 , a centrally arranged main transmission 41 and a rear double-speed auxiliary transmission 45 .

[0058] The half-gear auxiliary transmission 43 is composed of 2 gears.

[0059] The main transmission 44 is composed of 3 forward gears and 1 reverse gear.

[0060] The double gear auxiliary transmission 45 is made up of 2 gears.

[0061] It can be seen from the structural diagram of the 12-speed AMT transmission that the increase of the forward gears is the result of the expansion of the main transmission 44 via the half-speed auxiliary transmission 43 and the double-speed auxiliary transmission 45 . The main transmission 44 forward gears only have 3 gears, which are expanded to 6 gears through the front half gear auxiliary transmission 43, and then expanded to 12 gears through the ...

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Abstract

The invention discloses a gear selecting and shifting integrated device based on a commercial vehicle AMT transmission assembly. The gear selecting and shifting integrated device mainly comprises a front auxiliary box air cylinder assembly, a rear auxiliary box air cylinder assembly, a main box gear shifting air cylinder assembly, a main box gear selecting air cylinder assembly and a TCU module. An output shaft of an air cylinder in each assembly is connected with a shifting fork, and the shifting fork of the main box gear shifting air cylinder assembly is connected with a shifting fork grooveof the main box gear selecting air cylinder assembly in a sliding mode; and a magnetic ring is installed on an output shaft of the air cylinder in each assembly, and displacement signals are collected through a displacement sensor and sent to the TCU module. Components are arranged compactly, the installation environment with strict requirements for space can be met, the mode that the multiple shifting fork shafts are vertically arranged and controlled through one gear selecting and shifting module is adopted structurally, so that the components are arranged easily, the manufacturing cost isreduced, meanwhile, connecting wires of all the modules and the TCU module are shortened, and distortion of electric signals in a wire harnesses is reduced.

Description

technical field [0001] The invention relates to the technical field of gear selection and shifting structures, in particular to an integrated gear selection and shifting device based on a commercial vehicle AMT transmission assembly. Background technique [0002] Manual transmission (MT) products, hydraulic automatic transmission (AT) products, mechanical automatic continuously variable transmission (CVT) and mechanical automatic transmission (AMT) are all transmissions widely used in automobiles. AMT uses the gear selection bracket to connect the AMT gear selection actuator with the mechanical gearbox body, retains most of the original manual transmission assembly, but replaces the manual transmission control mechanism with the automatic control mechanism. Production succession is good, transformation cost is low, and results are quick. At present, most of the shift mechanisms of automatic mechanical transmissions (AMT) are hydraulic and pneumatic to realize gear selection...

Claims

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Application Information

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IPC IPC(8): F16H61/30F16H63/32F16H63/40
CPCF16H61/30F16H63/32F16H63/40F16H2061/308
Inventor 李传武王鲜艳杨业裕陈波李斌斌王新泽李文辽
Owner RUILI GROUP RUIAN AUTO PARTS CO LTD
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