Automatic control device of neumatic power fluid-control type clutch

Abstract

The invention discloses a pneumatic-hydraulic-controlled clutch automatic control device applied to vehicles. The purpose is to overcome the problems of large volume, slow response and low control precision existing in the prior art. The device has an automatic control system composed of a hydraulic control circuit, an air pressure control circuit, a displacement sensor (11) and an electric control unit (10). The two interfaces at one end of the hydraulic control circuit are respectively connected to the through-hole pipelines on the bottom of the transition hydraulic cylinder (4) and the cylinder wall, and the interface at the other end is connected to the through-hole pipelines on the cylinder wall of the executive hydraulic cylinder (12). The air pressure control circuit is connected with the through-hole pipeline on the cylinder wall of the left end of the pneumatic cylinder (1). The core rod of the displacement sensor (11) is affixed to the piston rod at the left end of the piston (13). The corresponding terminals of the electronic control unit (10) are respectively connected to the electromagnet terminal of the two-position three-way proportional flow valve (6), the electromagnet terminal of the two-position three-way pneumatic valve (8) and the displacement sensor (11) Terminal wire connection.

Description

technical field [0001] The invention relates to a clutch control system applied in the technical field of vehicle transmission automation control, more specifically, the invention relates to a pneumatic-hydraulic control type clutch control 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 play the advantages of low cost, high efficiency and simple structure of the device. With the demand of electronic technology, manufacturing technology and market, This process has gone through three stages: semi-automated, wire-controlled and fully automated. The semi-automatic stage includes two forms of automatic shift operation and automatic clutch operation. [0003] Whether it is an independent system or a sub-system of automatic shifting operation, clutch automatic operation occupies a core position in the field of transmission system automatic operation te...

AI Technical Summary

Problems solved by technology

However, the compressibility of the gas itself seriously affects the control accuracy and response characteristics of the clutch. Since the air pressure of the air source on the vehicle is generally relatively low (6bar-12bar), this will also affect the efficiency of the mechanism and the compactness of the structure. In addition, the pure pneumatic The clutch control system has the technical problems of large volume, slow response and low control precision

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