Pneumatic power fluid-control type clutch automatic control device

Abstract

The invention discloses a pneumatic hydraulic control clutch automatic operation device applied to vehicles. The invention aims at overcoming the problems in the prior art of large volume, slow response, low control precision, etc. The device is provided with an automatic control system consisting of a hydraulic control circuit, an air pressure control circuit, a displacement sensor (11) and an electric control unit (10). Two interfaces at one end of the hydraulic control circuit are respectively connected with a through-hole pipeline on the cylinder bottom and the cylinder wall of a transition hydraulic cylinder (4); the interface at the other end is connected with a through-hole pipeline on the cylinder wall of an execution hydraulic cylinder (12). The air pressure control circuit is connected with a through-hole pipeline on the cylinder wall at the left end of a pneumatic cylinder (1). A core rod of a displacement sensor (11) is fixedly connected with a piston rod at the left end of a piston (13). Corresponding wiring ends of the electric control unit (10) are respectively connected with an electromagnet wiring end of a two-position three-way proportion flux valve (6), an electromagnet wiring end of a two-position three-way pneumatic valve (8) and a wiring end wires of the displacement sensor (11).

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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