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Hydraulic mechanical type automatic gear shifting system

A technology of automatic shifting and hydraulic machinery, which is applied in the direction of mechanical equipment, transmission device control, and components with teeth, etc., can solve the problems of complex planetary transmission mechanism, difficult start control, AMT shifting impact, etc., and achieve processing Good manufacturability, overcoming poor fuel economy and quick response

Inactive Publication Date: 2008-09-10
JILIN UNIV
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AI Technical Summary

Problems solved by technology

[0021] The technical problem to be solved by the present invention is to provide a hydraulic-mechanical automatic shifting system in order to overcome the problems of the complex planetary transmission mechanism of the AT, the high manufacturing cost, the shock of the shifting of the AMT, and the difficulty of starting control.

Method used

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  • Hydraulic mechanical type automatic gear shifting system
  • Hydraulic mechanical type automatic gear shifting system
  • Hydraulic mechanical type automatic gear shifting system

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Embodiment Construction

[0055] The present invention is described in detail below in conjunction with accompanying drawing:

[0056] See Figure 1 to Figure 4 , The hydromechanical automatic shifting system is composed of two parts, the mechanical structure and the automatic control system.

[0057] The mechanical structure part includes a hydraulic torque converter assembly 2, a wet shift main clutch 3, a shift actuator assembly 5, a gear selection actuator assembly 7, a multi-gear parallel shaft gearbox 9, Parts such as front box body 12 and lock-up clutch 25.

[0058] The hydraulic torque converter assembly 2 is composed of the pump wheel cover 1 and the hydraulic torque converter Q. The front box body 12 is an integral box body part, and components such as the pump wheel cover 1, the hydraulic torque converter Q, the wet shift main clutch 3, the cycloid internal gear pump 11 and the lock-up clutch 25 are all installed on its Inside, the degree of integration is high, and it becomes the front b...

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Abstract

The invention discloses a hydraulic machine type automatic shift system, aiming to solve the problems of complicated planetary drive mechanism and high manufacture cost of AT and the problems of great difficulties of shift impact and launch control of AMT. The invention consists of a machine structure and an automatic control system, wherein the machine structure comprises a hydraulic torque convertor assembly (2), a wet type shift master clutch (3), a shift actuating mechanism assembly (5), a position selecting actuating mechanism assembly (7), a multiple positions parallel shaft type gear box (9) and a front box body (12). The machine structure is connected through a pump wheel cover (1) and a crank shaft (23), the output end of the machine structure is connected with the second shaft (48) of the multiple positions parallel shaft type gear box (9) and an automobile transmission shaft. The automatic control system comprises an electric control system and a hydraulic control system. The hydraulic control system comprises an internal meshing cycloid gear pump (11) providing pressure oil, action elements and control elements. The hydraulic machine type automatic shift system comprises four control circuits. The hydraulic machine type automatic shift system is more applicable to the automobiles such as large off-road vehicles.

Description

technical field [0001] The invention relates to a hydromechanical power transmission device suitable for automobiles, more specifically, it relates to a hydromechanical automatic shifting system. Background technique [0002] The process of automating the automobile transmission device composed of clutch and parallel shaft gear box is the only way to continue to take advantage of the device's advantages of low cost, high efficiency, and simple structure. AT, AMT, CVT, DCT, etc. have successively appeared on the market. Various types of automatic transmissions are introduced below: [0003] 1. AT.Automatic Transmission [0004] The basic form of a hydraulic automatic transmission is a series connection of a hydraulic torque converter and a rotary shaft mechanical transmission. The main advantages of this hydraulic automatic transmission are: [0005] 1. The automatic adaptability of the hydraulic torque converter enables it to have a certain range of continuously variable ...

Claims

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Application Information

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IPC IPC(8): F16H59/04F16H61/00
Inventor 雷雨龙盛培德葛安林胡廷辉
Owner JILIN UNIV
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