Gas flow regulation control device based on embedded system

Abstract

The invention discloses a gas flow regulation control device based on an embedded system. The gas flow regulation control device comprises an ARM controller, a stepping motor driver, a CAN driver and a stepping motor angle detection feedback system. The gas flow regulation control device based on the embedded system is characterized in that the ARM controller is connected with the stepping motor driver, and the ARM controller is connected with a solid rocket ramjet control system through the CAN driver. The ARM controller comprises a main program module, an interruption control module, a control table module, a membership function module, a fuzzy PID module and a PID module, and can be fixedly arranged inside a gas flow regulator of a solid rocket ramjet for controlling a disc of the gas flow regulator of the solid rocket ramjet to rotate, the throat area of an engine jet pipe is changed to regulate the air-fuel ratio, the energy of propellants is fully utilized, and thus the optimum working performance is achieved by the solid rocket ramjet. According to the gas flow regulation control device based on the embedded system, a modular structure is adopted, the closed loop design is achieved, high control precision can be guaranteed, the structure is compact, assembling and disassembling are convenient, reliability is high, and environmental adaptation is strong.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to a gas flow adjustment control device based on an embedded system, which is used for controlling the rotation of a gas flow regulator disc of a solid-impulse engine and changing the throat area of ​​an engine nozzle to adjust the air-fuel ratio. Background technique [0002] In order to ensure the versatility and portability of the gas flow regulator, the gas flow regulator control device is installed inside the gas flow regulator to achieve high-precision control of the gas flow regulator in a closed-loop form, generally reaching the second level. The dynamic characteristics of the gas flow regulator depend on the generated gas, free volume and valve action, and there is a negative adjustment characteristic during the gas flow adjustment process: when the expected gas flow decreases, the nozzle area of ​​the gas generator is rapidly increased, and the gas flow Decreas...

AI Technical Summary

Problems solved by technology

Since the flow adjustment control device is closely related to the valve body structure, material selection, gas type, speed and height, it is difficult to produce immediate results only by limited experiments and theoretical simulations

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